Changes between Initial Version and Version 1 of Ticket #19184


Ignore:
Timestamp:
Oct 20, 2025, 1:09:04 PM (3 weeks ago)
Author:
Eric Pettersen
Comment:

Though standard 7T0W entry does not have such codes

Legend:

Unmodified
Added
Removed
Modified

  • Ticket #19184

    • Property Component Unassigned → Surface/Binding Analysis
    • Property Owner set to Eric Pettersen
    • Property Platform → all
    • Property Project → ChimeraX
    • Property Status new → accepted
    • Property Summary ChimeraX bug report submission → Find Cavities problem with insertion codes

  • Ticket #19184 – Description

    initial v1  
    23772377^^^^^^^^^^^^^^^^^^^^ 
    23782378 
    2379 See log for complete Python traceback. 
    2380  
    2381 Traceback (most recent call last): 
    2382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2383 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2384 val = col.display_value(item) 
    2385 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2387 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2388 val = self.value(instance) 
    2389 ^^^^^^^^^^^^^^^^^^^^ 
    2390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2391 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2392 return self.data_fetch(instance) 
    2393 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2395 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2396 if s.display and s.atoms.displays.any(): 
    2397 ^^^^^^^^^ 
    2398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2399 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2400 return Model.display.fget(self) 
    2401 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2403 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2404 return self._any_displayed_positions and len(self._positions) > 0 
    2405 ^^^^^^^^^^^^^^^^^^^^ 
    2406 TypeError: object of type 'NoneType' has no len() 
    2407  
    2408 TypeError: object of type 'NoneType' has no len() 
    2409  
    2410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2411 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2412 return self._any_displayed_positions and len(self._positions) > 0 
    2413 ^^^^^^^^^^^^^^^^^^^^ 
    2414  
    2415 See log for complete Python traceback. 
    2416  
    2417 Traceback (most recent call last): 
    2418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2419 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2420 val = col.display_value(item) 
    2421 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2423 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2424 val = self.value(instance) 
    2425 ^^^^^^^^^^^^^^^^^^^^ 
    2426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2427 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2428 return self.data_fetch(instance) 
    2429 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2431 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2432 if s.display and s.atoms.displays.any(): 
    2433 ^^^^^^^^^ 
    2434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2435 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2436 return Model.display.fget(self) 
    2437 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2439 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2440 return self._any_displayed_positions and len(self._positions) > 0 
    2441 ^^^^^^^^^^^^^^^^^^^^ 
    2442 TypeError: object of type 'NoneType' has no len() 
    2443  
    2444 TypeError: object of type 'NoneType' has no len() 
    2445  
    2446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2447 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2448 return self._any_displayed_positions and len(self._positions) > 0 
    2449 ^^^^^^^^^^^^^^^^^^^^ 
    2450  
    2451 See log for complete Python traceback. 
    2452  
    2453 Traceback (most recent call last): 
    2454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2455 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2456 val = col.display_value(item) 
    2457 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2459 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2460 val = self.value(instance) 
    2461 ^^^^^^^^^^^^^^^^^^^^ 
    2462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2463 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2464 return self.data_fetch(instance) 
    2465 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2467 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2468 if s.display and s.atoms.displays.any(): 
    2469 ^^^^^^^^^ 
    2470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2471 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2472 return Model.display.fget(self) 
    2473 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2475 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2476 return self._any_displayed_positions and len(self._positions) > 0 
    2477 ^^^^^^^^^^^^^^^^^^^^ 
    2478 TypeError: object of type 'NoneType' has no len() 
    2479  
    2480 TypeError: object of type 'NoneType' has no len() 
    2481  
    2482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2483 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2484 return self._any_displayed_positions and len(self._positions) > 0 
    2485 ^^^^^^^^^^^^^^^^^^^^ 
    2486  
    2487 See log for complete Python traceback. 
    2488  
    2489 Traceback (most recent call last): 
    2490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2491 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2492 val = col.display_value(item) 
    2493 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2495 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2496 val = self.value(instance) 
    2497 ^^^^^^^^^^^^^^^^^^^^ 
    2498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2499 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2500 return self.data_fetch(instance) 
    2501 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2503 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2504 if s.display and s.atoms.displays.any(): 
    2505 ^^^^^^^^^ 
    2506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2507 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2508 return Model.display.fget(self) 
    2509 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2511 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2512 return self._any_displayed_positions and len(self._positions) > 0 
    2513 ^^^^^^^^^^^^^^^^^^^^ 
    2514 TypeError: object of type 'NoneType' has no len() 
    2515  
    2516 TypeError: object of type 'NoneType' has no len() 
    2517  
    2518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2519 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2520 return self._any_displayed_positions and len(self._positions) > 0 
    2521 ^^^^^^^^^^^^^^^^^^^^ 
    2522  
    2523 See log for complete Python traceback. 
    2524  
    2525 Traceback (most recent call last): 
    2526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2527 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2528 val = col.display_value(item) 
    2529 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2531 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2532 val = self.value(instance) 
    2533 ^^^^^^^^^^^^^^^^^^^^ 
    2534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2535 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2536 return self.data_fetch(instance) 
    2537 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2539 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2540 if s.display and s.atoms.displays.any(): 
    2541 ^^^^^^^^^ 
    2542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2543 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2544 return Model.display.fget(self) 
    2545 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2547 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2548 return self._any_displayed_positions and len(self._positions) > 0 
    2549 ^^^^^^^^^^^^^^^^^^^^ 
    2550 TypeError: object of type 'NoneType' has no len() 
    2551  
    2552 TypeError: object of type 'NoneType' has no len() 
    2553  
    2554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2555 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2556 return self._any_displayed_positions and len(self._positions) > 0 
    2557 ^^^^^^^^^^^^^^^^^^^^ 
    2558  
    2559 See log for complete Python traceback. 
    2560  
    2561 Traceback (most recent call last): 
    2562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2563 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2564 val = col.display_value(item) 
    2565 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2567 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2568 val = self.value(instance) 
    2569 ^^^^^^^^^^^^^^^^^^^^ 
    2570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2571 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2572 return self.data_fetch(instance) 
    2573 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2575 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2576 if s.display and s.atoms.displays.any(): 
    2577 ^^^^^^^^^ 
    2578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2579 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2580 return Model.display.fget(self) 
    2581 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2583 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2584 return self._any_displayed_positions and len(self._positions) > 0 
    2585 ^^^^^^^^^^^^^^^^^^^^ 
    2586 TypeError: object of type 'NoneType' has no len() 
    2587  
    2588 TypeError: object of type 'NoneType' has no len() 
    2589  
    2590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2591 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2592 return self._any_displayed_positions and len(self._positions) > 0 
    2593 ^^^^^^^^^^^^^^^^^^^^ 
    2594  
    2595 See log for complete Python traceback. 
    2596  
    2597 Traceback (most recent call last): 
    2598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2599 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2600 val = col.display_value(item) 
    2601 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2603 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2604 val = self.value(instance) 
    2605 ^^^^^^^^^^^^^^^^^^^^ 
    2606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2607 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2608 return self.data_fetch(instance) 
    2609 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2611 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2612 if s.display and s.atoms.displays.any(): 
    2613 ^^^^^^^^^ 
    2614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2615 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2616 return Model.display.fget(self) 
    2617 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2619 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2620 return self._any_displayed_positions and len(self._positions) > 0 
    2621 ^^^^^^^^^^^^^^^^^^^^ 
    2622 TypeError: object of type 'NoneType' has no len() 
    2623  
    2624 TypeError: object of type 'NoneType' has no len() 
    2625  
    2626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2627 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2628 return self._any_displayed_positions and len(self._positions) > 0 
    2629 ^^^^^^^^^^^^^^^^^^^^ 
    2630  
    2631 See log for complete Python traceback. 
    2632  
    2633 Traceback (most recent call last): 
    2634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2635 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2636 val = col.display_value(item) 
    2637 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2639 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2640 val = self.value(instance) 
    2641 ^^^^^^^^^^^^^^^^^^^^ 
    2642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2643 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2644 return self.data_fetch(instance) 
    2645 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2647 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2648 if s.display and s.atoms.displays.any(): 
    2649 ^^^^^^^^^ 
    2650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2651 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2652 return Model.display.fget(self) 
    2653 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2655 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2656 return self._any_displayed_positions and len(self._positions) > 0 
    2657 ^^^^^^^^^^^^^^^^^^^^ 
    2658 TypeError: object of type 'NoneType' has no len() 
    2659  
    2660 TypeError: object of type 'NoneType' has no len() 
    2661  
    2662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2663 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2664 return self._any_displayed_positions and len(self._positions) > 0 
    2665 ^^^^^^^^^^^^^^^^^^^^ 
    2666  
    2667 See log for complete Python traceback. 
    2668  
    2669 Traceback (most recent call last): 
    2670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2671 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2672 val = col.display_value(item) 
    2673 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2675 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2676 val = self.value(instance) 
    2677 ^^^^^^^^^^^^^^^^^^^^ 
    2678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2679 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2680 return self.data_fetch(instance) 
    2681 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2683 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2684 if s.display and s.atoms.displays.any(): 
    2685 ^^^^^^^^^ 
    2686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2687 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2688 return Model.display.fget(self) 
    2689 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2691 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2692 return self._any_displayed_positions and len(self._positions) > 0 
    2693 ^^^^^^^^^^^^^^^^^^^^ 
    2694 TypeError: object of type 'NoneType' has no len() 
    2695  
    2696 TypeError: object of type 'NoneType' has no len() 
    2697  
    2698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2699 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2700 return self._any_displayed_positions and len(self._positions) > 0 
    2701 ^^^^^^^^^^^^^^^^^^^^ 
    2702  
    2703 See log for complete Python traceback. 
    2704  
    2705 Traceback (most recent call last): 
    2706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2707 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2708 val = col.display_value(item) 
    2709 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2711 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2712 val = self.value(instance) 
    2713 ^^^^^^^^^^^^^^^^^^^^ 
    2714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2715 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2716 return self.data_fetch(instance) 
    2717 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2719 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2720 if s.display and s.atoms.displays.any(): 
    2721 ^^^^^^^^^ 
    2722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2723 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2724 return Model.display.fget(self) 
    2725 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2727 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2728 return self._any_displayed_positions and len(self._positions) > 0 
    2729 ^^^^^^^^^^^^^^^^^^^^ 
    2730 TypeError: object of type 'NoneType' has no len() 
    2731  
    2732 TypeError: object of type 'NoneType' has no len() 
    2733  
    2734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2735 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2736 return self._any_displayed_positions and len(self._positions) > 0 
    2737 ^^^^^^^^^^^^^^^^^^^^ 
    2738  
    2739 See log for complete Python traceback. 
    2740  
    2741 Traceback (most recent call last): 
    2742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2743 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2744 val = col.display_value(item) 
    2745 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2747 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2748 val = self.value(instance) 
    2749 ^^^^^^^^^^^^^^^^^^^^ 
    2750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2751 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2752 return self.data_fetch(instance) 
    2753 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2755 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2756 if s.display and s.atoms.displays.any(): 
    2757 ^^^^^^^^^ 
    2758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2759 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2760 return Model.display.fget(self) 
    2761 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2763 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2764 return self._any_displayed_positions and len(self._positions) > 0 
    2765 ^^^^^^^^^^^^^^^^^^^^ 
    2766 TypeError: object of type 'NoneType' has no len() 
    2767  
    2768 TypeError: object of type 'NoneType' has no len() 
    2769  
    2770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2771 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2772 return self._any_displayed_positions and len(self._positions) > 0 
    2773 ^^^^^^^^^^^^^^^^^^^^ 
    2774  
    2775 See log for complete Python traceback. 
    2776  
    2777 Traceback (most recent call last): 
    2778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2779 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2780 val = col.display_value(item) 
    2781 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2783 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2784 val = self.value(instance) 
    2785 ^^^^^^^^^^^^^^^^^^^^ 
    2786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2787 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2788 return self.data_fetch(instance) 
    2789 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2791 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2792 if s.display and s.atoms.displays.any(): 
    2793 ^^^^^^^^^ 
    2794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2795 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2796 return Model.display.fget(self) 
    2797 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2799 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2800 return self._any_displayed_positions and len(self._positions) > 0 
    2801 ^^^^^^^^^^^^^^^^^^^^ 
    2802 TypeError: object of type 'NoneType' has no len() 
    2803  
    2804 TypeError: object of type 'NoneType' has no len() 
    2805  
    2806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2807 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2808 return self._any_displayed_positions and len(self._positions) > 0 
    2809 ^^^^^^^^^^^^^^^^^^^^ 
    2810  
    2811 See log for complete Python traceback. 
    2812  
    2813 Traceback (most recent call last): 
    2814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2815 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2816 val = col.display_value(item) 
    2817 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2819 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2820 val = self.value(instance) 
    2821 ^^^^^^^^^^^^^^^^^^^^ 
    2822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2823 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2824 return self.data_fetch(instance) 
    2825 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2827 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2828 if s.display and s.atoms.displays.any(): 
    2829 ^^^^^^^^^ 
    2830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2831 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2832 return Model.display.fget(self) 
    2833 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2835 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2836 return self._any_displayed_positions and len(self._positions) > 0 
    2837 ^^^^^^^^^^^^^^^^^^^^ 
    2838 TypeError: object of type 'NoneType' has no len() 
    2839  
    2840 TypeError: object of type 'NoneType' has no len() 
    2841  
    2842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2843 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2844 return self._any_displayed_positions and len(self._positions) > 0 
    2845 ^^^^^^^^^^^^^^^^^^^^ 
    2846  
    2847 See log for complete Python traceback. 
    2848  
    2849 Traceback (most recent call last): 
    2850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2851 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2852 val = col.display_value(item) 
    2853 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2855 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2856 val = self.value(instance) 
    2857 ^^^^^^^^^^^^^^^^^^^^ 
    2858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2859 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2860 return self.data_fetch(instance) 
    2861 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2863 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2864 if s.display and s.atoms.displays.any(): 
    2865 ^^^^^^^^^ 
    2866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2867 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2868 return Model.display.fget(self) 
    2869 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2871 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2872 return self._any_displayed_positions and len(self._positions) > 0 
    2873 ^^^^^^^^^^^^^^^^^^^^ 
    2874 TypeError: object of type 'NoneType' has no len() 
    2875  
    2876 TypeError: object of type 'NoneType' has no len() 
    2877  
    2878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2879 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2880 return self._any_displayed_positions and len(self._positions) > 0 
    2881 ^^^^^^^^^^^^^^^^^^^^ 
    2882  
    2883 See log for complete Python traceback. 
    2884  
    2885 Traceback (most recent call last): 
    2886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2887 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2888 val = col.display_value(item) 
    2889 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2891 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2892 val = self.value(instance) 
    2893 ^^^^^^^^^^^^^^^^^^^^ 
    2894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2895 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2896 return self.data_fetch(instance) 
    2897 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2899 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2900 if s.display and s.atoms.displays.any(): 
    2901 ^^^^^^^^^ 
    2902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2903 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2904 return Model.display.fget(self) 
    2905 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2907 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2908 return self._any_displayed_positions and len(self._positions) > 0 
    2909 ^^^^^^^^^^^^^^^^^^^^ 
    2910 TypeError: object of type 'NoneType' has no len() 
    2911  
    2912 TypeError: object of type 'NoneType' has no len() 
    2913  
    2914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2915 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2916 return self._any_displayed_positions and len(self._positions) > 0 
    2917 ^^^^^^^^^^^^^^^^^^^^ 
    2918  
    2919 See log for complete Python traceback. 
    2920  
    2921 Traceback (most recent call last): 
    2922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2923 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2924 val = col.display_value(item) 
    2925 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2927 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2928 val = self.value(instance) 
    2929 ^^^^^^^^^^^^^^^^^^^^ 
    2930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2931 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2932 return self.data_fetch(instance) 
    2933 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2935 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2936 if s.display and s.atoms.displays.any(): 
    2937 ^^^^^^^^^ 
    2938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2939 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2940 return Model.display.fget(self) 
    2941 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2943 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2944 return self._any_displayed_positions and len(self._positions) > 0 
    2945 ^^^^^^^^^^^^^^^^^^^^ 
    2946 TypeError: object of type 'NoneType' has no len() 
    2947  
    2948 TypeError: object of type 'NoneType' has no len() 
    2949  
    2950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2951 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2952 return self._any_displayed_positions and len(self._positions) > 0 
    2953 ^^^^^^^^^^^^^^^^^^^^ 
    2954  
    2955 See log for complete Python traceback. 
    2956  
    2957 Traceback (most recent call last): 
    2958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2959 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2960 val = col.display_value(item) 
    2961 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2963 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    2964 val = self.value(instance) 
    2965 ^^^^^^^^^^^^^^^^^^^^ 
    2966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2967 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    2968 return self.data_fetch(instance) 
    2969 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    2970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2971 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    2972 if s.display and s.atoms.displays.any(): 
    2973 ^^^^^^^^^ 
    2974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2975 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    2976 return Model.display.fget(self) 
    2977 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    2978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2979 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2980 return self._any_displayed_positions and len(self._positions) > 0 
    2981 ^^^^^^^^^^^^^^^^^^^^ 
    2982 TypeError: object of type 'NoneType' has no len() 
    2983  
    2984 TypeError: object of type 'NoneType' has no len() 
    2985  
    2986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2987 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    2988 return self._any_displayed_positions and len(self._positions) > 0 
    2989 ^^^^^^^^^^^^^^^^^^^^ 
    2990  
    2991 See log for complete Python traceback. 
    2992  
    2993 Traceback (most recent call last): 
    2994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2995 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    2996 val = col.display_value(item) 
    2997 ^^^^^^^^^^^^^^^^^^^^^^^ 
    2998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    2999 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3000 val = self.value(instance) 
    3001 ^^^^^^^^^^^^^^^^^^^^ 
    3002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3003 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3004 return self.data_fetch(instance) 
    3005 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3007 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3008 if s.display and s.atoms.displays.any(): 
    3009 ^^^^^^^^^ 
    3010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3011 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3012 return Model.display.fget(self) 
    3013 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3015 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3016 return self._any_displayed_positions and len(self._positions) > 0 
    3017 ^^^^^^^^^^^^^^^^^^^^ 
    3018 TypeError: object of type 'NoneType' has no len() 
    3019  
    3020 TypeError: object of type 'NoneType' has no len() 
    3021  
    3022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3023 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3024 return self._any_displayed_positions and len(self._positions) > 0 
    3025 ^^^^^^^^^^^^^^^^^^^^ 
    3026  
    3027 See log for complete Python traceback. 
    3028  
    3029 Traceback (most recent call last): 
    3030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3031 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3032 val = col.display_value(item) 
    3033 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3035 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3036 val = self.value(instance) 
    3037 ^^^^^^^^^^^^^^^^^^^^ 
    3038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3039 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3040 return self.data_fetch(instance) 
    3041 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3043 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3044 if s.display and s.atoms.displays.any(): 
    3045 ^^^^^^^^^ 
    3046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3047 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3048 return Model.display.fget(self) 
    3049 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3051 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3052 return self._any_displayed_positions and len(self._positions) > 0 
    3053 ^^^^^^^^^^^^^^^^^^^^ 
    3054 TypeError: object of type 'NoneType' has no len() 
    3055  
    3056 TypeError: object of type 'NoneType' has no len() 
    3057  
    3058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3059 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3060 return self._any_displayed_positions and len(self._positions) > 0 
    3061 ^^^^^^^^^^^^^^^^^^^^ 
    3062  
    3063 See log for complete Python traceback. 
    3064  
    3065 Traceback (most recent call last): 
    3066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3067 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3068 val = col.display_value(item) 
    3069 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3071 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3072 val = self.value(instance) 
    3073 ^^^^^^^^^^^^^^^^^^^^ 
    3074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3075 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3076 return self.data_fetch(instance) 
    3077 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3079 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3080 if s.display and s.atoms.displays.any(): 
    3081 ^^^^^^^^^ 
    3082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3083 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3084 return Model.display.fget(self) 
    3085 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3087 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3088 return self._any_displayed_positions and len(self._positions) > 0 
    3089 ^^^^^^^^^^^^^^^^^^^^ 
    3090 TypeError: object of type 'NoneType' has no len() 
    3091  
    3092 TypeError: object of type 'NoneType' has no len() 
    3093  
    3094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3095 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3096 return self._any_displayed_positions and len(self._positions) > 0 
    3097 ^^^^^^^^^^^^^^^^^^^^ 
    3098  
    3099 See log for complete Python traceback. 
    3100  
    3101 Traceback (most recent call last): 
    3102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3103 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3104 val = col.display_value(item) 
    3105 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3107 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3108 val = self.value(instance) 
    3109 ^^^^^^^^^^^^^^^^^^^^ 
    3110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3111 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3112 return self.data_fetch(instance) 
    3113 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3115 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3116 if s.display and s.atoms.displays.any(): 
    3117 ^^^^^^^^^ 
    3118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3119 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3120 return Model.display.fget(self) 
    3121 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3123 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3124 return self._any_displayed_positions and len(self._positions) > 0 
    3125 ^^^^^^^^^^^^^^^^^^^^ 
    3126 TypeError: object of type 'NoneType' has no len() 
    3127  
    3128 TypeError: object of type 'NoneType' has no len() 
    3129  
    3130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3131 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3132 return self._any_displayed_positions and len(self._positions) > 0 
    3133 ^^^^^^^^^^^^^^^^^^^^ 
    3134  
    3135 See log for complete Python traceback. 
    3136  
    3137 Traceback (most recent call last): 
    3138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3139 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3140 val = col.display_value(item) 
    3141 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3143 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3144 val = self.value(instance) 
    3145 ^^^^^^^^^^^^^^^^^^^^ 
    3146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3147 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3148 return self.data_fetch(instance) 
    3149 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3151 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3152 if s.display and s.atoms.displays.any(): 
    3153 ^^^^^^^^^ 
    3154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3155 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3156 return Model.display.fget(self) 
    3157 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3159 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3160 return self._any_displayed_positions and len(self._positions) > 0 
    3161 ^^^^^^^^^^^^^^^^^^^^ 
    3162 TypeError: object of type 'NoneType' has no len() 
    3163  
    3164 TypeError: object of type 'NoneType' has no len() 
    3165  
    3166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3167 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3168 return self._any_displayed_positions and len(self._positions) > 0 
    3169 ^^^^^^^^^^^^^^^^^^^^ 
    3170  
    3171 See log for complete Python traceback. 
    3172  
    3173 Traceback (most recent call last): 
    3174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3175 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3176 val = col.display_value(item) 
    3177 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3179 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3180 val = self.value(instance) 
    3181 ^^^^^^^^^^^^^^^^^^^^ 
    3182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3183 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3184 return self.data_fetch(instance) 
    3185 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3187 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3188 if s.display and s.atoms.displays.any(): 
    3189 ^^^^^^^^^ 
    3190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3191 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3192 return Model.display.fget(self) 
    3193 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3195 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3196 return self._any_displayed_positions and len(self._positions) > 0 
    3197 ^^^^^^^^^^^^^^^^^^^^ 
    3198 TypeError: object of type 'NoneType' has no len() 
    3199  
    3200 TypeError: object of type 'NoneType' has no len() 
    3201  
    3202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3203 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3204 return self._any_displayed_positions and len(self._positions) > 0 
    3205 ^^^^^^^^^^^^^^^^^^^^ 
    3206  
    3207 See log for complete Python traceback. 
    3208  
    3209 Traceback (most recent call last): 
    3210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3211 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3212 val = col.display_value(item) 
    3213 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3215 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3216 val = self.value(instance) 
    3217 ^^^^^^^^^^^^^^^^^^^^ 
    3218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3219 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3220 return self.data_fetch(instance) 
    3221 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3223 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3224 if s.display and s.atoms.displays.any(): 
    3225 ^^^^^^^^^ 
    3226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3227 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3228 return Model.display.fget(self) 
    3229 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3231 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3232 return self._any_displayed_positions and len(self._positions) > 0 
    3233 ^^^^^^^^^^^^^^^^^^^^ 
    3234 TypeError: object of type 'NoneType' has no len() 
    3235  
    3236 TypeError: object of type 'NoneType' has no len() 
    3237  
    3238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3239 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3240 return self._any_displayed_positions and len(self._positions) > 0 
    3241 ^^^^^^^^^^^^^^^^^^^^ 
    3242  
    3243 See log for complete Python traceback. 
    3244  
    3245 Traceback (most recent call last): 
    3246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3247 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3248 val = col.display_value(item) 
    3249 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3251 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3252 val = self.value(instance) 
    3253 ^^^^^^^^^^^^^^^^^^^^ 
    3254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3255 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3256 return self.data_fetch(instance) 
    3257 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3259 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3260 if s.display and s.atoms.displays.any(): 
    3261 ^^^^^^^^^ 
    3262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3263 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3264 return Model.display.fget(self) 
    3265 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3267 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3268 return self._any_displayed_positions and len(self._positions) > 0 
    3269 ^^^^^^^^^^^^^^^^^^^^ 
    3270 TypeError: object of type 'NoneType' has no len() 
    3271  
    3272 TypeError: object of type 'NoneType' has no len() 
    3273  
    3274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3275 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3276 return self._any_displayed_positions and len(self._positions) > 0 
    3277 ^^^^^^^^^^^^^^^^^^^^ 
    3278  
    3279 See log for complete Python traceback. 
    3280  
    3281 Traceback (most recent call last): 
    3282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3283 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3284 val = col.display_value(item) 
    3285 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3287 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3288 val = self.value(instance) 
    3289 ^^^^^^^^^^^^^^^^^^^^ 
    3290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3291 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3292 return self.data_fetch(instance) 
    3293 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3295 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3296 if s.display and s.atoms.displays.any(): 
    3297 ^^^^^^^^^ 
    3298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3299 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3300 return Model.display.fget(self) 
    3301 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3303 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3304 return self._any_displayed_positions and len(self._positions) > 0 
    3305 ^^^^^^^^^^^^^^^^^^^^ 
    3306 TypeError: object of type 'NoneType' has no len() 
    3307  
    3308 TypeError: object of type 'NoneType' has no len() 
    3309  
    3310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3311 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3312 return self._any_displayed_positions and len(self._positions) > 0 
    3313 ^^^^^^^^^^^^^^^^^^^^ 
    3314  
    3315 See log for complete Python traceback. 
    3316  
    3317 Traceback (most recent call last): 
    3318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3319 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3320 val = col.display_value(item) 
    3321 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3323 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3324 val = self.value(instance) 
    3325 ^^^^^^^^^^^^^^^^^^^^ 
    3326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3327 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3328 return self.data_fetch(instance) 
    3329 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3331 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3332 if s.display and s.atoms.displays.any(): 
    3333 ^^^^^^^^^ 
    3334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3335 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3336 return Model.display.fget(self) 
    3337 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3339 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3340 return self._any_displayed_positions and len(self._positions) > 0 
    3341 ^^^^^^^^^^^^^^^^^^^^ 
    3342 TypeError: object of type 'NoneType' has no len() 
    3343  
    3344 TypeError: object of type 'NoneType' has no len() 
    3345  
    3346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3347 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3348 return self._any_displayed_positions and len(self._positions) > 0 
    3349 ^^^^^^^^^^^^^^^^^^^^ 
    3350  
    3351 See log for complete Python traceback. 
    3352  
    3353 Traceback (most recent call last): 
    3354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3355 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3356 val = col.display_value(item) 
    3357 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3359 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3360 val = self.value(instance) 
    3361 ^^^^^^^^^^^^^^^^^^^^ 
    3362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3363 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3364 return self.data_fetch(instance) 
    3365 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3367 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3368 if s.display and s.atoms.displays.any(): 
    3369 ^^^^^^^^^ 
    3370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3371 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3372 return Model.display.fget(self) 
    3373 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3375 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3376 return self._any_displayed_positions and len(self._positions) > 0 
    3377 ^^^^^^^^^^^^^^^^^^^^ 
    3378 TypeError: object of type 'NoneType' has no len() 
    3379  
    3380 TypeError: object of type 'NoneType' has no len() 
    3381  
    3382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3383 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3384 return self._any_displayed_positions and len(self._positions) > 0 
    3385 ^^^^^^^^^^^^^^^^^^^^ 
    3386  
    3387 See log for complete Python traceback. 
    3388  
    3389 Traceback (most recent call last): 
    3390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3391 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3392 val = col.display_value(item) 
    3393 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3395 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3396 val = self.value(instance) 
    3397 ^^^^^^^^^^^^^^^^^^^^ 
    3398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3399 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3400 return self.data_fetch(instance) 
    3401 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3403 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3404 if s.display and s.atoms.displays.any(): 
    3405 ^^^^^^^^^ 
    3406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3407 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3408 return Model.display.fget(self) 
    3409 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3411 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3412 return self._any_displayed_positions and len(self._positions) > 0 
    3413 ^^^^^^^^^^^^^^^^^^^^ 
    3414 TypeError: object of type 'NoneType' has no len() 
    3415  
    3416 TypeError: object of type 'NoneType' has no len() 
    3417  
    3418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3419 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3420 return self._any_displayed_positions and len(self._positions) > 0 
    3421 ^^^^^^^^^^^^^^^^^^^^ 
    3422  
    3423 See log for complete Python traceback. 
    3424  
    3425 Traceback (most recent call last): 
    3426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3427 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3428 val = col.display_value(item) 
    3429 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3431 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3432 val = self.value(instance) 
    3433 ^^^^^^^^^^^^^^^^^^^^ 
    3434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3435 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3436 return self.data_fetch(instance) 
    3437 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3439 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3440 if s.display and s.atoms.displays.any(): 
    3441 ^^^^^^^^^ 
    3442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3443 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3444 return Model.display.fget(self) 
    3445 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3447 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3448 return self._any_displayed_positions and len(self._positions) > 0 
    3449 ^^^^^^^^^^^^^^^^^^^^ 
    3450 TypeError: object of type 'NoneType' has no len() 
    3451  
    3452 TypeError: object of type 'NoneType' has no len() 
    3453  
    3454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3455 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3456 return self._any_displayed_positions and len(self._positions) > 0 
    3457 ^^^^^^^^^^^^^^^^^^^^ 
    3458  
    3459 See log for complete Python traceback. 
    3460  
    3461 Traceback (most recent call last): 
    3462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3463 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3464 val = col.display_value(item) 
    3465 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3467 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3468 val = self.value(instance) 
    3469 ^^^^^^^^^^^^^^^^^^^^ 
    3470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3471 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3472 return self.data_fetch(instance) 
    3473 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3475 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3476 if s.display and s.atoms.displays.any(): 
    3477 ^^^^^^^^^ 
    3478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3479 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3480 return Model.display.fget(self) 
    3481 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3483 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3484 return self._any_displayed_positions and len(self._positions) > 0 
    3485 ^^^^^^^^^^^^^^^^^^^^ 
    3486 TypeError: object of type 'NoneType' has no len() 
    3487  
    3488 TypeError: object of type 'NoneType' has no len() 
    3489  
    3490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3491 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3492 return self._any_displayed_positions and len(self._positions) > 0 
    3493 ^^^^^^^^^^^^^^^^^^^^ 
    3494  
    3495 See log for complete Python traceback. 
    3496  
    3497 Traceback (most recent call last): 
    3498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3499 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3500 val = col.display_value(item) 
    3501 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3503 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3504 val = self.value(instance) 
    3505 ^^^^^^^^^^^^^^^^^^^^ 
    3506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3507 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3508 return self.data_fetch(instance) 
    3509 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3511 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3512 if s.display and s.atoms.displays.any(): 
    3513 ^^^^^^^^^ 
    3514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3515 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3516 return Model.display.fget(self) 
    3517 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3519 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3520 return self._any_displayed_positions and len(self._positions) > 0 
    3521 ^^^^^^^^^^^^^^^^^^^^ 
    3522 TypeError: object of type 'NoneType' has no len() 
    3523  
    3524 TypeError: object of type 'NoneType' has no len() 
    3525  
    3526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3527 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3528 return self._any_displayed_positions and len(self._positions) > 0 
    3529 ^^^^^^^^^^^^^^^^^^^^ 
    3530  
    3531 See log for complete Python traceback. 
    3532  
    3533 Traceback (most recent call last): 
    3534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3535 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3536 val = col.display_value(item) 
    3537 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3539 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3540 val = self.value(instance) 
    3541 ^^^^^^^^^^^^^^^^^^^^ 
    3542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3543 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3544 return self.data_fetch(instance) 
    3545 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3547 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3548 if s.display and s.atoms.displays.any(): 
    3549 ^^^^^^^^^ 
    3550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3551 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3552 return Model.display.fget(self) 
    3553 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3555 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3556 return self._any_displayed_positions and len(self._positions) > 0 
    3557 ^^^^^^^^^^^^^^^^^^^^ 
    3558 TypeError: object of type 'NoneType' has no len() 
    3559  
    3560 TypeError: object of type 'NoneType' has no len() 
    3561  
    3562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3563 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3564 return self._any_displayed_positions and len(self._positions) > 0 
    3565 ^^^^^^^^^^^^^^^^^^^^ 
    3566  
    3567 See log for complete Python traceback. 
    3568  
    3569 Traceback (most recent call last): 
    3570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3571 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3572 val = col.display_value(item) 
    3573 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3575 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3576 val = self.value(instance) 
    3577 ^^^^^^^^^^^^^^^^^^^^ 
    3578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3579 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3580 return self.data_fetch(instance) 
    3581 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3583 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3584 if s.display and s.atoms.displays.any(): 
    3585 ^^^^^^^^^ 
    3586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3587 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3588 return Model.display.fget(self) 
    3589 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3591 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3592 return self._any_displayed_positions and len(self._positions) > 0 
    3593 ^^^^^^^^^^^^^^^^^^^^ 
    3594 TypeError: object of type 'NoneType' has no len() 
    3595  
    3596 TypeError: object of type 'NoneType' has no len() 
    3597  
    3598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3599 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3600 return self._any_displayed_positions and len(self._positions) > 0 
    3601 ^^^^^^^^^^^^^^^^^^^^ 
    3602  
    3603 See log for complete Python traceback. 
    3604  
    3605 Traceback (most recent call last): 
    3606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3607 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3608 val = col.display_value(item) 
    3609 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3611 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3612 val = self.value(instance) 
    3613 ^^^^^^^^^^^^^^^^^^^^ 
    3614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3615 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3616 return self.data_fetch(instance) 
    3617 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3619 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3620 if s.display and s.atoms.displays.any(): 
    3621 ^^^^^^^^^ 
    3622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3623 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3624 return Model.display.fget(self) 
    3625 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3627 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3628 return self._any_displayed_positions and len(self._positions) > 0 
    3629 ^^^^^^^^^^^^^^^^^^^^ 
    3630 TypeError: object of type 'NoneType' has no len() 
    3631  
    3632 TypeError: object of type 'NoneType' has no len() 
    3633  
    3634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3635 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3636 return self._any_displayed_positions and len(self._positions) > 0 
    3637 ^^^^^^^^^^^^^^^^^^^^ 
    3638  
    3639 See log for complete Python traceback. 
    3640  
    3641 Traceback (most recent call last): 
    3642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3643 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3644 val = col.display_value(item) 
    3645 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3647 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3648 val = self.value(instance) 
    3649 ^^^^^^^^^^^^^^^^^^^^ 
    3650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3651 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3652 return self.data_fetch(instance) 
    3653 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3655 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3656 if s.display and s.atoms.displays.any(): 
    3657 ^^^^^^^^^ 
    3658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3659 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3660 return Model.display.fget(self) 
    3661 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3663 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3664 return self._any_displayed_positions and len(self._positions) > 0 
    3665 ^^^^^^^^^^^^^^^^^^^^ 
    3666 TypeError: object of type 'NoneType' has no len() 
    3667  
    3668 TypeError: object of type 'NoneType' has no len() 
    3669  
    3670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3671 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3672 return self._any_displayed_positions and len(self._positions) > 0 
    3673 ^^^^^^^^^^^^^^^^^^^^ 
    3674  
    3675 See log for complete Python traceback. 
    3676  
    3677 Traceback (most recent call last): 
    3678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3679 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3680 val = col.display_value(item) 
    3681 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3683 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3684 val = self.value(instance) 
    3685 ^^^^^^^^^^^^^^^^^^^^ 
    3686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3687 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3688 return self.data_fetch(instance) 
    3689 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3691 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3692 if s.display and s.atoms.displays.any(): 
    3693 ^^^^^^^^^ 
    3694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3695 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3696 return Model.display.fget(self) 
    3697 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3699 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3700 return self._any_displayed_positions and len(self._positions) > 0 
    3701 ^^^^^^^^^^^^^^^^^^^^ 
    3702 TypeError: object of type 'NoneType' has no len() 
    3703  
    3704 TypeError: object of type 'NoneType' has no len() 
    3705  
    3706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3707 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3708 return self._any_displayed_positions and len(self._positions) > 0 
    3709 ^^^^^^^^^^^^^^^^^^^^ 
    3710  
    3711 See log for complete Python traceback. 
    3712  
    3713 Traceback (most recent call last): 
    3714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3715 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3716 val = col.display_value(item) 
    3717 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3719 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3720 val = self.value(instance) 
    3721 ^^^^^^^^^^^^^^^^^^^^ 
    3722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3723 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3724 return self.data_fetch(instance) 
    3725 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3727 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3728 if s.display and s.atoms.displays.any(): 
    3729 ^^^^^^^^^ 
    3730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3731 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3732 return Model.display.fget(self) 
    3733 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3735 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3736 return self._any_displayed_positions and len(self._positions) > 0 
    3737 ^^^^^^^^^^^^^^^^^^^^ 
    3738 TypeError: object of type 'NoneType' has no len() 
    3739  
    3740 TypeError: object of type 'NoneType' has no len() 
    3741  
    3742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3743 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3744 return self._any_displayed_positions and len(self._positions) > 0 
    3745 ^^^^^^^^^^^^^^^^^^^^ 
    3746  
    3747 See log for complete Python traceback. 
    3748  
    3749 Traceback (most recent call last): 
    3750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3751 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3752 val = col.display_value(item) 
    3753 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3755 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3756 val = self.value(instance) 
    3757 ^^^^^^^^^^^^^^^^^^^^ 
    3758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3759 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3760 return self.data_fetch(instance) 
    3761 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3763 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3764 if s.display and s.atoms.displays.any(): 
    3765 ^^^^^^^^^ 
    3766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3767 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3768 return Model.display.fget(self) 
    3769 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3771 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3772 return self._any_displayed_positions and len(self._positions) > 0 
    3773 ^^^^^^^^^^^^^^^^^^^^ 
    3774 TypeError: object of type 'NoneType' has no len() 
    3775  
    3776 TypeError: object of type 'NoneType' has no len() 
    3777  
    3778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3779 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3780 return self._any_displayed_positions and len(self._positions) > 0 
    3781 ^^^^^^^^^^^^^^^^^^^^ 
    3782  
    3783 See log for complete Python traceback. 
    3784  
    3785 Traceback (most recent call last): 
    3786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3787 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3788 val = col.display_value(item) 
    3789 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3791 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3792 val = self.value(instance) 
    3793 ^^^^^^^^^^^^^^^^^^^^ 
    3794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3795 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3796 return self.data_fetch(instance) 
    3797 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3799 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3800 if s.display and s.atoms.displays.any(): 
    3801 ^^^^^^^^^ 
    3802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3803 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3804 return Model.display.fget(self) 
    3805 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3807 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3808 return self._any_displayed_positions and len(self._positions) > 0 
    3809 ^^^^^^^^^^^^^^^^^^^^ 
    3810 TypeError: object of type 'NoneType' has no len() 
    3811  
    3812 TypeError: object of type 'NoneType' has no len() 
    3813  
    3814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3815 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3816 return self._any_displayed_positions and len(self._positions) > 0 
    3817 ^^^^^^^^^^^^^^^^^^^^ 
    3818  
    3819 See log for complete Python traceback. 
    3820  
    3821 Traceback (most recent call last): 
    3822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3823 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3824 val = col.display_value(item) 
    3825 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3827 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3828 val = self.value(instance) 
    3829 ^^^^^^^^^^^^^^^^^^^^ 
    3830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3831 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3832 return self.data_fetch(instance) 
    3833 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3835 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3836 if s.display and s.atoms.displays.any(): 
    3837 ^^^^^^^^^ 
    3838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3839 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3840 return Model.display.fget(self) 
    3841 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3843 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3844 return self._any_displayed_positions and len(self._positions) > 0 
    3845 ^^^^^^^^^^^^^^^^^^^^ 
    3846 TypeError: object of type 'NoneType' has no len() 
    3847  
    3848 TypeError: object of type 'NoneType' has no len() 
    3849  
    3850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3851 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3852 return self._any_displayed_positions and len(self._positions) > 0 
    3853 ^^^^^^^^^^^^^^^^^^^^ 
    3854  
    3855 See log for complete Python traceback. 
    3856  
    3857 Traceback (most recent call last): 
    3858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3859 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3860 val = col.display_value(item) 
    3861 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3863 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3864 val = self.value(instance) 
    3865 ^^^^^^^^^^^^^^^^^^^^ 
    3866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3867 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3868 return self.data_fetch(instance) 
    3869 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3871 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3872 if s.display and s.atoms.displays.any(): 
    3873 ^^^^^^^^^ 
    3874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3875 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3876 return Model.display.fget(self) 
    3877 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3879 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3880 return self._any_displayed_positions and len(self._positions) > 0 
    3881 ^^^^^^^^^^^^^^^^^^^^ 
    3882 TypeError: object of type 'NoneType' has no len() 
    3883  
    3884 TypeError: object of type 'NoneType' has no len() 
    3885  
    3886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3887 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3888 return self._any_displayed_positions and len(self._positions) > 0 
    3889 ^^^^^^^^^^^^^^^^^^^^ 
    3890  
    3891 See log for complete Python traceback. 
    3892  
    3893 Traceback (most recent call last): 
    3894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3895 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3896 val = col.display_value(item) 
    3897 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3899 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3900 val = self.value(instance) 
    3901 ^^^^^^^^^^^^^^^^^^^^ 
    3902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3903 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3904 return self.data_fetch(instance) 
    3905 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3907 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3908 if s.display and s.atoms.displays.any(): 
    3909 ^^^^^^^^^ 
    3910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3911 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3912 return Model.display.fget(self) 
    3913 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3915 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3916 return self._any_displayed_positions and len(self._positions) > 0 
    3917 ^^^^^^^^^^^^^^^^^^^^ 
    3918 TypeError: object of type 'NoneType' has no len() 
    3919  
    3920 TypeError: object of type 'NoneType' has no len() 
    3921  
    3922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3923 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3924 return self._any_displayed_positions and len(self._positions) > 0 
    3925 ^^^^^^^^^^^^^^^^^^^^ 
    3926  
    3927 See log for complete Python traceback. 
    3928  
    3929 Traceback (most recent call last): 
    3930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3931 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3932 val = col.display_value(item) 
    3933 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3935 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3936 val = self.value(instance) 
    3937 ^^^^^^^^^^^^^^^^^^^^ 
    3938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3939 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3940 return self.data_fetch(instance) 
    3941 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3943 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3944 if s.display and s.atoms.displays.any(): 
    3945 ^^^^^^^^^ 
    3946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3947 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3948 return Model.display.fget(self) 
    3949 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3951 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3952 return self._any_displayed_positions and len(self._positions) > 0 
    3953 ^^^^^^^^^^^^^^^^^^^^ 
    3954 TypeError: object of type 'NoneType' has no len() 
    3955  
    3956 TypeError: object of type 'NoneType' has no len() 
    3957  
    3958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3959 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3960 return self._any_displayed_positions and len(self._positions) > 0 
    3961 ^^^^^^^^^^^^^^^^^^^^ 
    3962  
    3963 See log for complete Python traceback. 
    3964  
    3965 Traceback (most recent call last): 
    3966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3967 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    3968 val = col.display_value(item) 
    3969 ^^^^^^^^^^^^^^^^^^^^^^^ 
    3970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3971 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    3972 val = self.value(instance) 
    3973 ^^^^^^^^^^^^^^^^^^^^ 
    3974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3975 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    3976 return self.data_fetch(instance) 
    3977 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    3978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3979 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    3980 if s.display and s.atoms.displays.any(): 
    3981 ^^^^^^^^^ 
    3982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3983 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    3984 return Model.display.fget(self) 
    3985 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    3986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3987 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3988 return self._any_displayed_positions and len(self._positions) > 0 
    3989 ^^^^^^^^^^^^^^^^^^^^ 
    3990 TypeError: object of type 'NoneType' has no len() 
    3991  
    3992 TypeError: object of type 'NoneType' has no len() 
    3993  
    3994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    3995 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    3996 return self._any_displayed_positions and len(self._positions) > 0 
    3997 ^^^^^^^^^^^^^^^^^^^^ 
    3998  
    3999 See log for complete Python traceback. 
    4000  
    4001 Traceback (most recent call last): 
    4002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4003 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4004 val = col.display_value(item) 
    4005 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4007 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4008 val = self.value(instance) 
    4009 ^^^^^^^^^^^^^^^^^^^^ 
    4010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4011 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4012 return self.data_fetch(instance) 
    4013 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4015 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4016 if s.display and s.atoms.displays.any(): 
    4017 ^^^^^^^^^ 
    4018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4019 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4020 return Model.display.fget(self) 
    4021 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4023 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4024 return self._any_displayed_positions and len(self._positions) > 0 
    4025 ^^^^^^^^^^^^^^^^^^^^ 
    4026 TypeError: object of type 'NoneType' has no len() 
    4027  
    4028 TypeError: object of type 'NoneType' has no len() 
    4029  
    4030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4031 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4032 return self._any_displayed_positions and len(self._positions) > 0 
    4033 ^^^^^^^^^^^^^^^^^^^^ 
    4034  
    4035 See log for complete Python traceback. 
    4036  
    4037 Traceback (most recent call last): 
    4038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4039 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4040 val = col.display_value(item) 
    4041 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4043 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4044 val = self.value(instance) 
    4045 ^^^^^^^^^^^^^^^^^^^^ 
    4046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4047 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4048 return self.data_fetch(instance) 
    4049 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4051 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4052 if s.display and s.atoms.displays.any(): 
    4053 ^^^^^^^^^ 
    4054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4055 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4056 return Model.display.fget(self) 
    4057 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4059 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4060 return self._any_displayed_positions and len(self._positions) > 0 
    4061 ^^^^^^^^^^^^^^^^^^^^ 
    4062 TypeError: object of type 'NoneType' has no len() 
    4063  
    4064 TypeError: object of type 'NoneType' has no len() 
    4065  
    4066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4067 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4068 return self._any_displayed_positions and len(self._positions) > 0 
    4069 ^^^^^^^^^^^^^^^^^^^^ 
    4070  
    4071 See log for complete Python traceback. 
    4072  
    4073 Traceback (most recent call last): 
    4074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4075 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4076 val = col.display_value(item) 
    4077 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4079 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4080 val = self.value(instance) 
    4081 ^^^^^^^^^^^^^^^^^^^^ 
    4082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4083 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4084 return self.data_fetch(instance) 
    4085 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4087 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4088 if s.display and s.atoms.displays.any(): 
    4089 ^^^^^^^^^ 
    4090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4091 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4092 return Model.display.fget(self) 
    4093 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4095 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4096 return self._any_displayed_positions and len(self._positions) > 0 
    4097 ^^^^^^^^^^^^^^^^^^^^ 
    4098 TypeError: object of type 'NoneType' has no len() 
    4099  
    4100 TypeError: object of type 'NoneType' has no len() 
    4101  
    4102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4103 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4104 return self._any_displayed_positions and len(self._positions) > 0 
    4105 ^^^^^^^^^^^^^^^^^^^^ 
    4106  
    4107 See log for complete Python traceback. 
    4108  
    4109 Traceback (most recent call last): 
    4110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4111 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4112 val = col.display_value(item) 
    4113 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4115 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4116 val = self.value(instance) 
    4117 ^^^^^^^^^^^^^^^^^^^^ 
    4118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4119 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4120 return self.data_fetch(instance) 
    4121 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4123 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4124 if s.display and s.atoms.displays.any(): 
    4125 ^^^^^^^^^ 
    4126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4127 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4128 return Model.display.fget(self) 
    4129 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4131 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4132 return self._any_displayed_positions and len(self._positions) > 0 
    4133 ^^^^^^^^^^^^^^^^^^^^ 
    4134 TypeError: object of type 'NoneType' has no len() 
    4135  
    4136 TypeError: object of type 'NoneType' has no len() 
    4137  
    4138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4139 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4140 return self._any_displayed_positions and len(self._positions) > 0 
    4141 ^^^^^^^^^^^^^^^^^^^^ 
    4142  
    4143 See log for complete Python traceback. 
    4144  
    4145 Traceback (most recent call last): 
    4146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4147 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4148 val = col.display_value(item) 
    4149 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4151 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4152 val = self.value(instance) 
    4153 ^^^^^^^^^^^^^^^^^^^^ 
    4154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4155 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4156 return self.data_fetch(instance) 
    4157 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4159 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4160 if s.display and s.atoms.displays.any(): 
    4161 ^^^^^^^^^ 
    4162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4163 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4164 return Model.display.fget(self) 
    4165 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4167 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4168 return self._any_displayed_positions and len(self._positions) > 0 
    4169 ^^^^^^^^^^^^^^^^^^^^ 
    4170 TypeError: object of type 'NoneType' has no len() 
    4171  
    4172 TypeError: object of type 'NoneType' has no len() 
    4173  
    4174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4175 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4176 return self._any_displayed_positions and len(self._positions) > 0 
    4177 ^^^^^^^^^^^^^^^^^^^^ 
    4178  
    4179 See log for complete Python traceback. 
    4180  
    4181 Traceback (most recent call last): 
    4182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4183 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4184 val = col.display_value(item) 
    4185 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4187 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4188 val = self.value(instance) 
    4189 ^^^^^^^^^^^^^^^^^^^^ 
    4190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4191 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4192 return self.data_fetch(instance) 
    4193 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4195 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4196 if s.display and s.atoms.displays.any(): 
    4197 ^^^^^^^^^ 
    4198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4199 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4200 return Model.display.fget(self) 
    4201 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4203 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4204 return self._any_displayed_positions and len(self._positions) > 0 
    4205 ^^^^^^^^^^^^^^^^^^^^ 
    4206 TypeError: object of type 'NoneType' has no len() 
    4207  
    4208 TypeError: object of type 'NoneType' has no len() 
    4209  
    4210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4211 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4212 return self._any_displayed_positions and len(self._positions) > 0 
    4213 ^^^^^^^^^^^^^^^^^^^^ 
    4214  
    4215 See log for complete Python traceback. 
    4216  
    4217 Traceback (most recent call last): 
    4218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4219 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4220 val = col.display_value(item) 
    4221 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4223 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4224 val = self.value(instance) 
    4225 ^^^^^^^^^^^^^^^^^^^^ 
    4226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4227 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4228 return self.data_fetch(instance) 
    4229 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4231 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4232 if s.display and s.atoms.displays.any(): 
    4233 ^^^^^^^^^ 
    4234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4235 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4236 return Model.display.fget(self) 
    4237 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4239 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4240 return self._any_displayed_positions and len(self._positions) > 0 
    4241 ^^^^^^^^^^^^^^^^^^^^ 
    4242 TypeError: object of type 'NoneType' has no len() 
    4243  
    4244 TypeError: object of type 'NoneType' has no len() 
    4245  
    4246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4247 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4248 return self._any_displayed_positions and len(self._positions) > 0 
    4249 ^^^^^^^^^^^^^^^^^^^^ 
    4250  
    4251 See log for complete Python traceback. 
    4252  
    4253 Traceback (most recent call last): 
    4254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4255 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4256 val = col.display_value(item) 
    4257 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4259 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4260 val = self.value(instance) 
    4261 ^^^^^^^^^^^^^^^^^^^^ 
    4262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4263 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4264 return self.data_fetch(instance) 
    4265 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4267 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4268 if s.display and s.atoms.displays.any(): 
    4269 ^^^^^^^^^ 
    4270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4271 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4272 return Model.display.fget(self) 
    4273 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4275 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4276 return self._any_displayed_positions and len(self._positions) > 0 
    4277 ^^^^^^^^^^^^^^^^^^^^ 
    4278 TypeError: object of type 'NoneType' has no len() 
    4279  
    4280 TypeError: object of type 'NoneType' has no len() 
    4281  
    4282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4283 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4284 return self._any_displayed_positions and len(self._positions) > 0 
    4285 ^^^^^^^^^^^^^^^^^^^^ 
    4286  
    4287 See log for complete Python traceback. 
    4288  
    4289 Traceback (most recent call last): 
    4290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4291 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4292 val = col.display_value(item) 
    4293 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4295 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4296 val = self.value(instance) 
    4297 ^^^^^^^^^^^^^^^^^^^^ 
    4298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4299 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4300 return self.data_fetch(instance) 
    4301 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4303 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4304 if s.display and s.atoms.displays.any(): 
    4305 ^^^^^^^^^ 
    4306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4307 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4308 return Model.display.fget(self) 
    4309 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4311 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4312 return self._any_displayed_positions and len(self._positions) > 0 
    4313 ^^^^^^^^^^^^^^^^^^^^ 
    4314 TypeError: object of type 'NoneType' has no len() 
    4315  
    4316 TypeError: object of type 'NoneType' has no len() 
    4317  
    4318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4319 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4320 return self._any_displayed_positions and len(self._positions) > 0 
    4321 ^^^^^^^^^^^^^^^^^^^^ 
    4322  
    4323 See log for complete Python traceback. 
    4324  
    4325 Traceback (most recent call last): 
    4326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4327 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4328 val = col.display_value(item) 
    4329 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4331 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4332 val = self.value(instance) 
    4333 ^^^^^^^^^^^^^^^^^^^^ 
    4334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4335 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4336 return self.data_fetch(instance) 
    4337 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4339 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4340 if s.display and s.atoms.displays.any(): 
    4341 ^^^^^^^^^ 
    4342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4343 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4344 return Model.display.fget(self) 
    4345 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4347 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4348 return self._any_displayed_positions and len(self._positions) > 0 
    4349 ^^^^^^^^^^^^^^^^^^^^ 
    4350 TypeError: object of type 'NoneType' has no len() 
    4351  
    4352 TypeError: object of type 'NoneType' has no len() 
    4353  
    4354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4355 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4356 return self._any_displayed_positions and len(self._positions) > 0 
    4357 ^^^^^^^^^^^^^^^^^^^^ 
    4358  
    4359 See log for complete Python traceback. 
    4360  
    4361 Traceback (most recent call last): 
    4362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4363 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4364 val = col.display_value(item) 
    4365 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4367 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4368 val = self.value(instance) 
    4369 ^^^^^^^^^^^^^^^^^^^^ 
    4370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4371 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4372 return self.data_fetch(instance) 
    4373 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4375 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4376 if s.display and s.atoms.displays.any(): 
    4377 ^^^^^^^^^ 
    4378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4379 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4380 return Model.display.fget(self) 
    4381 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4383 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4384 return self._any_displayed_positions and len(self._positions) > 0 
    4385 ^^^^^^^^^^^^^^^^^^^^ 
    4386 TypeError: object of type 'NoneType' has no len() 
    4387  
    4388 TypeError: object of type 'NoneType' has no len() 
    4389  
    4390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4391 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4392 return self._any_displayed_positions and len(self._positions) > 0 
    4393 ^^^^^^^^^^^^^^^^^^^^ 
    4394  
    4395 See log for complete Python traceback. 
    4396  
    4397 Traceback (most recent call last): 
    4398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4399 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4400 val = col.display_value(item) 
    4401 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4403 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4404 val = self.value(instance) 
    4405 ^^^^^^^^^^^^^^^^^^^^ 
    4406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4407 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4408 return self.data_fetch(instance) 
    4409 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4411 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4412 if s.display and s.atoms.displays.any(): 
    4413 ^^^^^^^^^ 
    4414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4415 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4416 return Model.display.fget(self) 
    4417 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4419 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4420 return self._any_displayed_positions and len(self._positions) > 0 
    4421 ^^^^^^^^^^^^^^^^^^^^ 
    4422 TypeError: object of type 'NoneType' has no len() 
    4423  
    4424 TypeError: object of type 'NoneType' has no len() 
    4425  
    4426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4427 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4428 return self._any_displayed_positions and len(self._positions) > 0 
    4429 ^^^^^^^^^^^^^^^^^^^^ 
    4430  
    4431 See log for complete Python traceback. 
    4432  
    4433 Traceback (most recent call last): 
    4434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4435 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4436 val = col.display_value(item) 
    4437 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4439 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4440 val = self.value(instance) 
    4441 ^^^^^^^^^^^^^^^^^^^^ 
    4442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4443 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4444 return self.data_fetch(instance) 
    4445 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4447 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4448 if s.display and s.atoms.displays.any(): 
    4449 ^^^^^^^^^ 
    4450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4451 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4452 return Model.display.fget(self) 
    4453 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4455 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4456 return self._any_displayed_positions and len(self._positions) > 0 
    4457 ^^^^^^^^^^^^^^^^^^^^ 
    4458 TypeError: object of type 'NoneType' has no len() 
    4459  
    4460 TypeError: object of type 'NoneType' has no len() 
    4461  
    4462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4463 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4464 return self._any_displayed_positions and len(self._positions) > 0 
    4465 ^^^^^^^^^^^^^^^^^^^^ 
    4466  
    4467 See log for complete Python traceback. 
    4468  
    4469 Traceback (most recent call last): 
    4470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4471 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4472 val = col.display_value(item) 
    4473 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4475 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4476 val = self.value(instance) 
    4477 ^^^^^^^^^^^^^^^^^^^^ 
    4478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4479 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4480 return self.data_fetch(instance) 
    4481 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4483 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4484 if s.display and s.atoms.displays.any(): 
    4485 ^^^^^^^^^ 
    4486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4487 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4488 return Model.display.fget(self) 
    4489 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4491 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4492 return self._any_displayed_positions and len(self._positions) > 0 
    4493 ^^^^^^^^^^^^^^^^^^^^ 
    4494 TypeError: object of type 'NoneType' has no len() 
    4495  
    4496 TypeError: object of type 'NoneType' has no len() 
    4497  
    4498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4499 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4500 return self._any_displayed_positions and len(self._positions) > 0 
    4501 ^^^^^^^^^^^^^^^^^^^^ 
    4502  
    4503 See log for complete Python traceback. 
    4504  
    4505 Traceback (most recent call last): 
    4506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4507 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4508 val = col.display_value(item) 
    4509 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4511 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4512 val = self.value(instance) 
    4513 ^^^^^^^^^^^^^^^^^^^^ 
    4514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4515 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4516 return self.data_fetch(instance) 
    4517 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4519 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4520 if s.display and s.atoms.displays.any(): 
    4521 ^^^^^^^^^ 
    4522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4523 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4524 return Model.display.fget(self) 
    4525 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4527 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4528 return self._any_displayed_positions and len(self._positions) > 0 
    4529 ^^^^^^^^^^^^^^^^^^^^ 
    4530 TypeError: object of type 'NoneType' has no len() 
    4531  
    4532 TypeError: object of type 'NoneType' has no len() 
    4533  
    4534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4535 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4536 return self._any_displayed_positions and len(self._positions) > 0 
    4537 ^^^^^^^^^^^^^^^^^^^^ 
    4538  
    4539 See log for complete Python traceback. 
    4540  
    4541 Traceback (most recent call last): 
    4542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4543 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4544 val = col.display_value(item) 
    4545 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4547 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4548 val = self.value(instance) 
    4549 ^^^^^^^^^^^^^^^^^^^^ 
    4550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4551 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4552 return self.data_fetch(instance) 
    4553 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4555 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4556 if s.display and s.atoms.displays.any(): 
    4557 ^^^^^^^^^ 
    4558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4559 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4560 return Model.display.fget(self) 
    4561 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4563 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4564 return self._any_displayed_positions and len(self._positions) > 0 
    4565 ^^^^^^^^^^^^^^^^^^^^ 
    4566 TypeError: object of type 'NoneType' has no len() 
    4567  
    4568 TypeError: object of type 'NoneType' has no len() 
    4569  
    4570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4571 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4572 return self._any_displayed_positions and len(self._positions) > 0 
    4573 ^^^^^^^^^^^^^^^^^^^^ 
    4574  
    4575 See log for complete Python traceback. 
    4576  
    4577 Traceback (most recent call last): 
    4578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4579 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4580 val = col.display_value(item) 
    4581 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4583 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4584 val = self.value(instance) 
    4585 ^^^^^^^^^^^^^^^^^^^^ 
    4586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4587 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4588 return self.data_fetch(instance) 
    4589 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4591 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4592 if s.display and s.atoms.displays.any(): 
    4593 ^^^^^^^^^ 
    4594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4595 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4596 return Model.display.fget(self) 
    4597 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4599 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4600 return self._any_displayed_positions and len(self._positions) > 0 
    4601 ^^^^^^^^^^^^^^^^^^^^ 
    4602 TypeError: object of type 'NoneType' has no len() 
    4603  
    4604 TypeError: object of type 'NoneType' has no len() 
    4605  
    4606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4607 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4608 return self._any_displayed_positions and len(self._positions) > 0 
    4609 ^^^^^^^^^^^^^^^^^^^^ 
    4610  
    4611 See log for complete Python traceback. 
    4612  
    4613 Traceback (most recent call last): 
    4614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4615 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4616 val = col.display_value(item) 
    4617 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4619 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4620 val = self.value(instance) 
    4621 ^^^^^^^^^^^^^^^^^^^^ 
    4622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4623 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4624 return self.data_fetch(instance) 
    4625 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4627 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4628 if s.display and s.atoms.displays.any(): 
    4629 ^^^^^^^^^ 
    4630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4631 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4632 return Model.display.fget(self) 
    4633 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4635 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4636 return self._any_displayed_positions and len(self._positions) > 0 
    4637 ^^^^^^^^^^^^^^^^^^^^ 
    4638 TypeError: object of type 'NoneType' has no len() 
    4639  
    4640 TypeError: object of type 'NoneType' has no len() 
    4641  
    4642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4643 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4644 return self._any_displayed_positions and len(self._positions) > 0 
    4645 ^^^^^^^^^^^^^^^^^^^^ 
    4646  
    4647 See log for complete Python traceback. 
    4648  
    4649 Traceback (most recent call last): 
    4650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4651 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4652 val = col.display_value(item) 
    4653 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4655 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4656 val = self.value(instance) 
    4657 ^^^^^^^^^^^^^^^^^^^^ 
    4658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4659 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4660 return self.data_fetch(instance) 
    4661 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4663 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4664 if s.display and s.atoms.displays.any(): 
    4665 ^^^^^^^^^ 
    4666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4667 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4668 return Model.display.fget(self) 
    4669 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4671 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4672 return self._any_displayed_positions and len(self._positions) > 0 
    4673 ^^^^^^^^^^^^^^^^^^^^ 
    4674 TypeError: object of type 'NoneType' has no len() 
    4675  
    4676 TypeError: object of type 'NoneType' has no len() 
    4677  
    4678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4679 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4680 return self._any_displayed_positions and len(self._positions) > 0 
    4681 ^^^^^^^^^^^^^^^^^^^^ 
    4682  
    4683 See log for complete Python traceback. 
    4684  
    4685 Traceback (most recent call last): 
    4686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4687 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4688 val = col.display_value(item) 
    4689 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4691 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4692 val = self.value(instance) 
    4693 ^^^^^^^^^^^^^^^^^^^^ 
    4694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4695 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4696 return self.data_fetch(instance) 
    4697 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4699 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4700 if s.display and s.atoms.displays.any(): 
    4701 ^^^^^^^^^ 
    4702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4703 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4704 return Model.display.fget(self) 
    4705 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4707 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4708 return self._any_displayed_positions and len(self._positions) > 0 
    4709 ^^^^^^^^^^^^^^^^^^^^ 
    4710 TypeError: object of type 'NoneType' has no len() 
    4711  
    4712 TypeError: object of type 'NoneType' has no len() 
    4713  
    4714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4715 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4716 return self._any_displayed_positions and len(self._positions) > 0 
    4717 ^^^^^^^^^^^^^^^^^^^^ 
    4718  
    4719 See log for complete Python traceback. 
    4720  
    4721 Traceback (most recent call last): 
    4722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4723 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4724 val = col.display_value(item) 
    4725 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4727 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4728 val = self.value(instance) 
    4729 ^^^^^^^^^^^^^^^^^^^^ 
    4730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4731 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4732 return self.data_fetch(instance) 
    4733 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4735 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4736 if s.display and s.atoms.displays.any(): 
    4737 ^^^^^^^^^ 
    4738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4739 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4740 return Model.display.fget(self) 
    4741 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4743 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4744 return self._any_displayed_positions and len(self._positions) > 0 
    4745 ^^^^^^^^^^^^^^^^^^^^ 
    4746 TypeError: object of type 'NoneType' has no len() 
    4747  
    4748 TypeError: object of type 'NoneType' has no len() 
    4749  
    4750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4751 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4752 return self._any_displayed_positions and len(self._positions) > 0 
    4753 ^^^^^^^^^^^^^^^^^^^^ 
    4754  
    4755 See log for complete Python traceback. 
    4756  
    4757 Traceback (most recent call last): 
    4758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4759 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4760 val = col.display_value(item) 
    4761 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4763 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4764 val = self.value(instance) 
    4765 ^^^^^^^^^^^^^^^^^^^^ 
    4766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4767 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4768 return self.data_fetch(instance) 
    4769 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4771 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4772 if s.display and s.atoms.displays.any(): 
    4773 ^^^^^^^^^ 
    4774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4775 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4776 return Model.display.fget(self) 
    4777 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4779 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4780 return self._any_displayed_positions and len(self._positions) > 0 
    4781 ^^^^^^^^^^^^^^^^^^^^ 
    4782 TypeError: object of type 'NoneType' has no len() 
    4783  
    4784 TypeError: object of type 'NoneType' has no len() 
    4785  
    4786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4787 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4788 return self._any_displayed_positions and len(self._positions) > 0 
    4789 ^^^^^^^^^^^^^^^^^^^^ 
    4790  
    4791 See log for complete Python traceback. 
    4792  
    4793 Traceback (most recent call last): 
    4794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4795 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4796 val = col.display_value(item) 
    4797 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4799 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4800 val = self.value(instance) 
    4801 ^^^^^^^^^^^^^^^^^^^^ 
    4802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4803 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4804 return self.data_fetch(instance) 
    4805 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4807 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4808 if s.display and s.atoms.displays.any(): 
    4809 ^^^^^^^^^ 
    4810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4811 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4812 return Model.display.fget(self) 
    4813 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4815 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4816 return self._any_displayed_positions and len(self._positions) > 0 
    4817 ^^^^^^^^^^^^^^^^^^^^ 
    4818 TypeError: object of type 'NoneType' has no len() 
    4819  
    4820 TypeError: object of type 'NoneType' has no len() 
    4821  
    4822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4823 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4824 return self._any_displayed_positions and len(self._positions) > 0 
    4825 ^^^^^^^^^^^^^^^^^^^^ 
    4826  
    4827 See log for complete Python traceback. 
    4828  
    4829 Traceback (most recent call last): 
    4830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4831 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4832 val = col.display_value(item) 
    4833 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4835 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4836 val = self.value(instance) 
    4837 ^^^^^^^^^^^^^^^^^^^^ 
    4838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4839 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4840 return self.data_fetch(instance) 
    4841 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4843 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4844 if s.display and s.atoms.displays.any(): 
    4845 ^^^^^^^^^ 
    4846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4847 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4848 return Model.display.fget(self) 
    4849 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4851 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4852 return self._any_displayed_positions and len(self._positions) > 0 
    4853 ^^^^^^^^^^^^^^^^^^^^ 
    4854 TypeError: object of type 'NoneType' has no len() 
    4855  
    4856 TypeError: object of type 'NoneType' has no len() 
    4857  
    4858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4859 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4860 return self._any_displayed_positions and len(self._positions) > 0 
    4861 ^^^^^^^^^^^^^^^^^^^^ 
    4862  
    4863 See log for complete Python traceback. 
    4864  
    4865 Traceback (most recent call last): 
    4866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4867 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4868 val = col.display_value(item) 
    4869 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4871 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4872 val = self.value(instance) 
    4873 ^^^^^^^^^^^^^^^^^^^^ 
    4874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4875 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4876 return self.data_fetch(instance) 
    4877 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4879 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4880 if s.display and s.atoms.displays.any(): 
    4881 ^^^^^^^^^ 
    4882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4883 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4884 return Model.display.fget(self) 
    4885 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4887 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4888 return self._any_displayed_positions and len(self._positions) > 0 
    4889 ^^^^^^^^^^^^^^^^^^^^ 
    4890 TypeError: object of type 'NoneType' has no len() 
    4891  
    4892 TypeError: object of type 'NoneType' has no len() 
    4893  
    4894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4895 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4896 return self._any_displayed_positions and len(self._positions) > 0 
    4897 ^^^^^^^^^^^^^^^^^^^^ 
    4898  
    4899 See log for complete Python traceback. 
    4900  
    4901 Traceback (most recent call last): 
    4902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4903 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4904 val = col.display_value(item) 
    4905 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4907 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4908 val = self.value(instance) 
    4909 ^^^^^^^^^^^^^^^^^^^^ 
    4910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4911 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4912 return self.data_fetch(instance) 
    4913 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4915 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4916 if s.display and s.atoms.displays.any(): 
    4917 ^^^^^^^^^ 
    4918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4919 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4920 return Model.display.fget(self) 
    4921 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4923 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4924 return self._any_displayed_positions and len(self._positions) > 0 
    4925 ^^^^^^^^^^^^^^^^^^^^ 
    4926 TypeError: object of type 'NoneType' has no len() 
    4927  
    4928 TypeError: object of type 'NoneType' has no len() 
    4929  
    4930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4931 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4932 return self._any_displayed_positions and len(self._positions) > 0 
    4933 ^^^^^^^^^^^^^^^^^^^^ 
    4934  
    4935 See log for complete Python traceback. 
    4936  
    4937 Traceback (most recent call last): 
    4938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4939 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4940 val = col.display_value(item) 
    4941 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4943 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4944 val = self.value(instance) 
    4945 ^^^^^^^^^^^^^^^^^^^^ 
    4946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4947 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4948 return self.data_fetch(instance) 
    4949 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4951 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4952 if s.display and s.atoms.displays.any(): 
    4953 ^^^^^^^^^ 
    4954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4955 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4956 return Model.display.fget(self) 
    4957 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4959 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4960 return self._any_displayed_positions and len(self._positions) > 0 
    4961 ^^^^^^^^^^^^^^^^^^^^ 
    4962 TypeError: object of type 'NoneType' has no len() 
    4963  
    4964 TypeError: object of type 'NoneType' has no len() 
    4965  
    4966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4967 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4968 return self._any_displayed_positions and len(self._positions) > 0 
    4969 ^^^^^^^^^^^^^^^^^^^^ 
    4970  
    4971 See log for complete Python traceback. 
    4972  
    4973 Traceback (most recent call last): 
    4974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4975 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    4976 val = col.display_value(item) 
    4977 ^^^^^^^^^^^^^^^^^^^^^^^ 
    4978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4979 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    4980 val = self.value(instance) 
    4981 ^^^^^^^^^^^^^^^^^^^^ 
    4982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4983 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    4984 return self.data_fetch(instance) 
    4985 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    4986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4987 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    4988 if s.display and s.atoms.displays.any(): 
    4989 ^^^^^^^^^ 
    4990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4991 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    4992 return Model.display.fget(self) 
    4993 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    4994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    4995 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    4996 return self._any_displayed_positions and len(self._positions) > 0 
    4997 ^^^^^^^^^^^^^^^^^^^^ 
    4998 TypeError: object of type 'NoneType' has no len() 
    4999  
    5000 TypeError: object of type 'NoneType' has no len() 
    5001  
    5002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5003 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5004 return self._any_displayed_positions and len(self._positions) > 0 
    5005 ^^^^^^^^^^^^^^^^^^^^ 
    5006  
    5007 See log for complete Python traceback. 
    5008  
    5009 Traceback (most recent call last): 
    5010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5011 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5012 val = col.display_value(item) 
    5013 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5015 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5016 val = self.value(instance) 
    5017 ^^^^^^^^^^^^^^^^^^^^ 
    5018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5019 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5020 return self.data_fetch(instance) 
    5021 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5023 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5024 if s.display and s.atoms.displays.any(): 
    5025 ^^^^^^^^^ 
    5026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5027 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5028 return Model.display.fget(self) 
    5029 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5031 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5032 return self._any_displayed_positions and len(self._positions) > 0 
    5033 ^^^^^^^^^^^^^^^^^^^^ 
    5034 TypeError: object of type 'NoneType' has no len() 
    5035  
    5036 TypeError: object of type 'NoneType' has no len() 
    5037  
    5038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5039 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5040 return self._any_displayed_positions and len(self._positions) > 0 
    5041 ^^^^^^^^^^^^^^^^^^^^ 
    5042  
    5043 See log for complete Python traceback. 
    5044  
    5045 Traceback (most recent call last): 
    5046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5047 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5048 val = col.display_value(item) 
    5049 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5051 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5052 val = self.value(instance) 
    5053 ^^^^^^^^^^^^^^^^^^^^ 
    5054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5055 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5056 return self.data_fetch(instance) 
    5057 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5059 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5060 if s.display and s.atoms.displays.any(): 
    5061 ^^^^^^^^^ 
    5062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5063 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5064 return Model.display.fget(self) 
    5065 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5067 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5068 return self._any_displayed_positions and len(self._positions) > 0 
    5069 ^^^^^^^^^^^^^^^^^^^^ 
    5070 TypeError: object of type 'NoneType' has no len() 
    5071  
    5072 TypeError: object of type 'NoneType' has no len() 
    5073  
    5074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5075 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5076 return self._any_displayed_positions and len(self._positions) > 0 
    5077 ^^^^^^^^^^^^^^^^^^^^ 
    5078  
    5079 See log for complete Python traceback. 
    5080  
    5081 Traceback (most recent call last): 
    5082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5083 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5084 val = col.display_value(item) 
    5085 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5087 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5088 val = self.value(instance) 
    5089 ^^^^^^^^^^^^^^^^^^^^ 
    5090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5091 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5092 return self.data_fetch(instance) 
    5093 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5095 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5096 if s.display and s.atoms.displays.any(): 
    5097 ^^^^^^^^^ 
    5098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5099 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5100 return Model.display.fget(self) 
    5101 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5103 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5104 return self._any_displayed_positions and len(self._positions) > 0 
    5105 ^^^^^^^^^^^^^^^^^^^^ 
    5106 TypeError: object of type 'NoneType' has no len() 
    5107  
    5108 TypeError: object of type 'NoneType' has no len() 
    5109  
    5110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5111 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5112 return self._any_displayed_positions and len(self._positions) > 0 
    5113 ^^^^^^^^^^^^^^^^^^^^ 
    5114  
    5115 See log for complete Python traceback. 
    5116  
    5117 Traceback (most recent call last): 
    5118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5119 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5120 val = col.display_value(item) 
    5121 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5123 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5124 val = self.value(instance) 
    5125 ^^^^^^^^^^^^^^^^^^^^ 
    5126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5127 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5128 return self.data_fetch(instance) 
    5129 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5131 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5132 if s.display and s.atoms.displays.any(): 
    5133 ^^^^^^^^^ 
    5134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5135 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5136 return Model.display.fget(self) 
    5137 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5139 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5140 return self._any_displayed_positions and len(self._positions) > 0 
    5141 ^^^^^^^^^^^^^^^^^^^^ 
    5142 TypeError: object of type 'NoneType' has no len() 
    5143  
    5144 TypeError: object of type 'NoneType' has no len() 
    5145  
    5146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5147 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5148 return self._any_displayed_positions and len(self._positions) > 0 
    5149 ^^^^^^^^^^^^^^^^^^^^ 
    5150  
    5151 See log for complete Python traceback. 
    5152  
    5153 Traceback (most recent call last): 
    5154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5155 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5156 val = col.display_value(item) 
    5157 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5159 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5160 val = self.value(instance) 
    5161 ^^^^^^^^^^^^^^^^^^^^ 
    5162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5163 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5164 return self.data_fetch(instance) 
    5165 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5167 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5168 if s.display and s.atoms.displays.any(): 
    5169 ^^^^^^^^^ 
    5170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5171 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5172 return Model.display.fget(self) 
    5173 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5175 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5176 return self._any_displayed_positions and len(self._positions) > 0 
    5177 ^^^^^^^^^^^^^^^^^^^^ 
    5178 TypeError: object of type 'NoneType' has no len() 
    5179  
    5180 TypeError: object of type 'NoneType' has no len() 
    5181  
    5182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5183 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5184 return self._any_displayed_positions and len(self._positions) > 0 
    5185 ^^^^^^^^^^^^^^^^^^^^ 
    5186  
    5187 See log for complete Python traceback. 
    5188  
    5189 Traceback (most recent call last): 
    5190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5191 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5192 val = col.display_value(item) 
    5193 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5195 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5196 val = self.value(instance) 
    5197 ^^^^^^^^^^^^^^^^^^^^ 
    5198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5199 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5200 return self.data_fetch(instance) 
    5201 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5203 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5204 if s.display and s.atoms.displays.any(): 
    5205 ^^^^^^^^^ 
    5206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5207 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5208 return Model.display.fget(self) 
    5209 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5211 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5212 return self._any_displayed_positions and len(self._positions) > 0 
    5213 ^^^^^^^^^^^^^^^^^^^^ 
    5214 TypeError: object of type 'NoneType' has no len() 
    5215  
    5216 TypeError: object of type 'NoneType' has no len() 
    5217  
    5218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5219 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5220 return self._any_displayed_positions and len(self._positions) > 0 
    5221 ^^^^^^^^^^^^^^^^^^^^ 
    5222  
    5223 See log for complete Python traceback. 
    5224  
    5225 Traceback (most recent call last): 
    5226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5227 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5228 val = col.display_value(item) 
    5229 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5231 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5232 val = self.value(instance) 
    5233 ^^^^^^^^^^^^^^^^^^^^ 
    5234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5235 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5236 return self.data_fetch(instance) 
    5237 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5239 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5240 if s.display and s.atoms.displays.any(): 
    5241 ^^^^^^^^^ 
    5242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5243 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5244 return Model.display.fget(self) 
    5245 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5247 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5248 return self._any_displayed_positions and len(self._positions) > 0 
    5249 ^^^^^^^^^^^^^^^^^^^^ 
    5250 TypeError: object of type 'NoneType' has no len() 
    5251  
    5252 TypeError: object of type 'NoneType' has no len() 
    5253  
    5254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5255 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5256 return self._any_displayed_positions and len(self._positions) > 0 
    5257 ^^^^^^^^^^^^^^^^^^^^ 
    5258  
    5259 See log for complete Python traceback. 
    5260  
    5261 Traceback (most recent call last): 
    5262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5263 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5264 val = col.display_value(item) 
    5265 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5267 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5268 val = self.value(instance) 
    5269 ^^^^^^^^^^^^^^^^^^^^ 
    5270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5271 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5272 return self.data_fetch(instance) 
    5273 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5275 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5276 if s.display and s.atoms.displays.any(): 
    5277 ^^^^^^^^^ 
    5278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5279 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5280 return Model.display.fget(self) 
    5281 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5283 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5284 return self._any_displayed_positions and len(self._positions) > 0 
    5285 ^^^^^^^^^^^^^^^^^^^^ 
    5286 TypeError: object of type 'NoneType' has no len() 
    5287  
    5288 TypeError: object of type 'NoneType' has no len() 
    5289  
    5290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5291 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5292 return self._any_displayed_positions and len(self._positions) > 0 
    5293 ^^^^^^^^^^^^^^^^^^^^ 
    5294  
    5295 See log for complete Python traceback. 
    5296  
    5297 Traceback (most recent call last): 
    5298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5299 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5300 val = col.display_value(item) 
    5301 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5303 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5304 val = self.value(instance) 
    5305 ^^^^^^^^^^^^^^^^^^^^ 
    5306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5307 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5308 return self.data_fetch(instance) 
    5309 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5311 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5312 if s.display and s.atoms.displays.any(): 
    5313 ^^^^^^^^^ 
    5314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5315 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5316 return Model.display.fget(self) 
    5317 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5319 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5320 return self._any_displayed_positions and len(self._positions) > 0 
    5321 ^^^^^^^^^^^^^^^^^^^^ 
    5322 TypeError: object of type 'NoneType' has no len() 
    5323  
    5324 TypeError: object of type 'NoneType' has no len() 
    5325  
    5326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5327 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5328 return self._any_displayed_positions and len(self._positions) > 0 
    5329 ^^^^^^^^^^^^^^^^^^^^ 
    5330  
    5331 See log for complete Python traceback. 
    5332  
    5333 Traceback (most recent call last): 
    5334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5335 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5336 val = col.display_value(item) 
    5337 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5339 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5340 val = self.value(instance) 
    5341 ^^^^^^^^^^^^^^^^^^^^ 
    5342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5343 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5344 return self.data_fetch(instance) 
    5345 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5347 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5348 if s.display and s.atoms.displays.any(): 
    5349 ^^^^^^^^^ 
    5350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5351 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5352 return Model.display.fget(self) 
    5353 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5355 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5356 return self._any_displayed_positions and len(self._positions) > 0 
    5357 ^^^^^^^^^^^^^^^^^^^^ 
    5358 TypeError: object of type 'NoneType' has no len() 
    5359  
    5360 TypeError: object of type 'NoneType' has no len() 
    5361  
    5362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5363 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5364 return self._any_displayed_positions and len(self._positions) > 0 
    5365 ^^^^^^^^^^^^^^^^^^^^ 
    5366  
    5367 See log for complete Python traceback. 
    5368  
    5369 Traceback (most recent call last): 
    5370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5371 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5372 val = col.display_value(item) 
    5373 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5375 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5376 val = self.value(instance) 
    5377 ^^^^^^^^^^^^^^^^^^^^ 
    5378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5379 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5380 return self.data_fetch(instance) 
    5381 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5383 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5384 if s.display and s.atoms.displays.any(): 
    5385 ^^^^^^^^^ 
    5386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5387 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5388 return Model.display.fget(self) 
    5389 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5391 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5392 return self._any_displayed_positions and len(self._positions) > 0 
    5393 ^^^^^^^^^^^^^^^^^^^^ 
    5394 TypeError: object of type 'NoneType' has no len() 
    5395  
    5396 TypeError: object of type 'NoneType' has no len() 
    5397  
    5398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5399 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5400 return self._any_displayed_positions and len(self._positions) > 0 
    5401 ^^^^^^^^^^^^^^^^^^^^ 
    5402  
    5403 See log for complete Python traceback. 
    5404  
    5405 Traceback (most recent call last): 
    5406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5407 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5408 val = col.display_value(item) 
    5409 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5411 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5412 val = self.value(instance) 
    5413 ^^^^^^^^^^^^^^^^^^^^ 
    5414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5415 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5416 return self.data_fetch(instance) 
    5417 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5419 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5420 if s.display and s.atoms.displays.any(): 
    5421 ^^^^^^^^^ 
    5422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5423 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5424 return Model.display.fget(self) 
    5425 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5427 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5428 return self._any_displayed_positions and len(self._positions) > 0 
    5429 ^^^^^^^^^^^^^^^^^^^^ 
    5430 TypeError: object of type 'NoneType' has no len() 
    5431  
    5432 TypeError: object of type 'NoneType' has no len() 
    5433  
    5434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5435 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5436 return self._any_displayed_positions and len(self._positions) > 0 
    5437 ^^^^^^^^^^^^^^^^^^^^ 
    5438  
    5439 See log for complete Python traceback. 
    5440  
    5441 Traceback (most recent call last): 
    5442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5443 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5444 val = col.display_value(item) 
    5445 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5447 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5448 val = self.value(instance) 
    5449 ^^^^^^^^^^^^^^^^^^^^ 
    5450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5451 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5452 return self.data_fetch(instance) 
    5453 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5455 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5456 if s.display and s.atoms.displays.any(): 
    5457 ^^^^^^^^^ 
    5458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5459 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5460 return Model.display.fget(self) 
    5461 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5463 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5464 return self._any_displayed_positions and len(self._positions) > 0 
    5465 ^^^^^^^^^^^^^^^^^^^^ 
    5466 TypeError: object of type 'NoneType' has no len() 
    5467  
    5468 TypeError: object of type 'NoneType' has no len() 
    5469  
    5470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5471 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5472 return self._any_displayed_positions and len(self._positions) > 0 
    5473 ^^^^^^^^^^^^^^^^^^^^ 
    5474  
    5475 See log for complete Python traceback. 
    5476  
    5477 Traceback (most recent call last): 
    5478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5479 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5480 val = col.display_value(item) 
    5481 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5483 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5484 val = self.value(instance) 
    5485 ^^^^^^^^^^^^^^^^^^^^ 
    5486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5487 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5488 return self.data_fetch(instance) 
    5489 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5491 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5492 if s.display and s.atoms.displays.any(): 
    5493 ^^^^^^^^^ 
    5494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5495 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5496 return Model.display.fget(self) 
    5497 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5499 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5500 return self._any_displayed_positions and len(self._positions) > 0 
    5501 ^^^^^^^^^^^^^^^^^^^^ 
    5502 TypeError: object of type 'NoneType' has no len() 
    5503  
    5504 TypeError: object of type 'NoneType' has no len() 
    5505  
    5506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5507 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5508 return self._any_displayed_positions and len(self._positions) > 0 
    5509 ^^^^^^^^^^^^^^^^^^^^ 
    5510  
    5511 See log for complete Python traceback. 
    5512  
    5513 Traceback (most recent call last): 
    5514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5515 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5516 val = col.display_value(item) 
    5517 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5519 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5520 val = self.value(instance) 
    5521 ^^^^^^^^^^^^^^^^^^^^ 
    5522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5523 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5524 return self.data_fetch(instance) 
    5525 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5527 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5528 if s.display and s.atoms.displays.any(): 
    5529 ^^^^^^^^^ 
    5530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5531 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5532 return Model.display.fget(self) 
    5533 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5535 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5536 return self._any_displayed_positions and len(self._positions) > 0 
    5537 ^^^^^^^^^^^^^^^^^^^^ 
    5538 TypeError: object of type 'NoneType' has no len() 
    5539  
    5540 TypeError: object of type 'NoneType' has no len() 
    5541  
    5542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5543 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5544 return self._any_displayed_positions and len(self._positions) > 0 
    5545 ^^^^^^^^^^^^^^^^^^^^ 
    5546  
    5547 See log for complete Python traceback. 
    5548  
    5549 Traceback (most recent call last): 
    5550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5551 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5552 val = col.display_value(item) 
    5553 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5555 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5556 val = self.value(instance) 
    5557 ^^^^^^^^^^^^^^^^^^^^ 
    5558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5559 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5560 return self.data_fetch(instance) 
    5561 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5563 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5564 if s.display and s.atoms.displays.any(): 
    5565 ^^^^^^^^^ 
    5566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5567 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5568 return Model.display.fget(self) 
    5569 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5571 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5572 return self._any_displayed_positions and len(self._positions) > 0 
    5573 ^^^^^^^^^^^^^^^^^^^^ 
    5574 TypeError: object of type 'NoneType' has no len() 
    5575  
    5576 TypeError: object of type 'NoneType' has no len() 
    5577  
    5578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5579 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5580 return self._any_displayed_positions and len(self._positions) > 0 
    5581 ^^^^^^^^^^^^^^^^^^^^ 
    5582  
    5583 See log for complete Python traceback. 
    5584  
    5585 Traceback (most recent call last): 
    5586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5587 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5588 val = col.display_value(item) 
    5589 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5591 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5592 val = self.value(instance) 
    5593 ^^^^^^^^^^^^^^^^^^^^ 
    5594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5595 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5596 return self.data_fetch(instance) 
    5597 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5599 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5600 if s.display and s.atoms.displays.any(): 
    5601 ^^^^^^^^^ 
    5602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5603 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5604 return Model.display.fget(self) 
    5605 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5607 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5608 return self._any_displayed_positions and len(self._positions) > 0 
    5609 ^^^^^^^^^^^^^^^^^^^^ 
    5610 TypeError: object of type 'NoneType' has no len() 
    5611  
    5612 TypeError: object of type 'NoneType' has no len() 
    5613  
    5614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5615 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5616 return self._any_displayed_positions and len(self._positions) > 0 
    5617 ^^^^^^^^^^^^^^^^^^^^ 
    5618  
    5619 See log for complete Python traceback. 
    5620  
    5621 Traceback (most recent call last): 
    5622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5623 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5624 val = col.display_value(item) 
    5625 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5627 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5628 val = self.value(instance) 
    5629 ^^^^^^^^^^^^^^^^^^^^ 
    5630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5631 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5632 return self.data_fetch(instance) 
    5633 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5635 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5636 if s.display and s.atoms.displays.any(): 
    5637 ^^^^^^^^^ 
    5638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5639 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5640 return Model.display.fget(self) 
    5641 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5643 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5644 return self._any_displayed_positions and len(self._positions) > 0 
    5645 ^^^^^^^^^^^^^^^^^^^^ 
    5646 TypeError: object of type 'NoneType' has no len() 
    5647  
    5648 TypeError: object of type 'NoneType' has no len() 
    5649  
    5650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5651 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5652 return self._any_displayed_positions and len(self._positions) > 0 
    5653 ^^^^^^^^^^^^^^^^^^^^ 
    5654  
    5655 See log for complete Python traceback. 
    5656  
    5657 Traceback (most recent call last): 
    5658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5659 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5660 val = col.display_value(item) 
    5661 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5663 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5664 val = self.value(instance) 
    5665 ^^^^^^^^^^^^^^^^^^^^ 
    5666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5667 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5668 return self.data_fetch(instance) 
    5669 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5671 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5672 if s.display and s.atoms.displays.any(): 
    5673 ^^^^^^^^^ 
    5674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5675 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5676 return Model.display.fget(self) 
    5677 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5679 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5680 return self._any_displayed_positions and len(self._positions) > 0 
    5681 ^^^^^^^^^^^^^^^^^^^^ 
    5682 TypeError: object of type 'NoneType' has no len() 
    5683  
    5684 TypeError: object of type 'NoneType' has no len() 
    5685  
    5686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5687 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5688 return self._any_displayed_positions and len(self._positions) > 0 
    5689 ^^^^^^^^^^^^^^^^^^^^ 
    5690  
    5691 See log for complete Python traceback. 
    5692  
    5693 Traceback (most recent call last): 
    5694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5695 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5696 val = col.display_value(item) 
    5697 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5699 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5700 val = self.value(instance) 
    5701 ^^^^^^^^^^^^^^^^^^^^ 
    5702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5703 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5704 return self.data_fetch(instance) 
    5705 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5707 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5708 if s.display and s.atoms.displays.any(): 
    5709 ^^^^^^^^^ 
    5710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5711 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5712 return Model.display.fget(self) 
    5713 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5715 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5716 return self._any_displayed_positions and len(self._positions) > 0 
    5717 ^^^^^^^^^^^^^^^^^^^^ 
    5718 TypeError: object of type 'NoneType' has no len() 
    5719  
    5720 TypeError: object of type 'NoneType' has no len() 
    5721  
    5722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5723 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5724 return self._any_displayed_positions and len(self._positions) > 0 
    5725 ^^^^^^^^^^^^^^^^^^^^ 
    5726  
    5727 See log for complete Python traceback. 
    5728  
    5729 Traceback (most recent call last): 
    5730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5731 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5732 val = col.display_value(item) 
    5733 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5735 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5736 val = self.value(instance) 
    5737 ^^^^^^^^^^^^^^^^^^^^ 
    5738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5739 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5740 return self.data_fetch(instance) 
    5741 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5743 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5744 if s.display and s.atoms.displays.any(): 
    5745 ^^^^^^^^^ 
    5746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5747 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5748 return Model.display.fget(self) 
    5749 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5751 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5752 return self._any_displayed_positions and len(self._positions) > 0 
    5753 ^^^^^^^^^^^^^^^^^^^^ 
    5754 TypeError: object of type 'NoneType' has no len() 
    5755  
    5756 TypeError: object of type 'NoneType' has no len() 
    5757  
    5758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5759 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5760 return self._any_displayed_positions and len(self._positions) > 0 
    5761 ^^^^^^^^^^^^^^^^^^^^ 
    5762  
    5763 See log for complete Python traceback. 
    5764  
    5765 Traceback (most recent call last): 
    5766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5767 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5768 val = col.display_value(item) 
    5769 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5771 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5772 val = self.value(instance) 
    5773 ^^^^^^^^^^^^^^^^^^^^ 
    5774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5775 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5776 return self.data_fetch(instance) 
    5777 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5779 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5780 if s.display and s.atoms.displays.any(): 
    5781 ^^^^^^^^^ 
    5782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5783 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5784 return Model.display.fget(self) 
    5785 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5787 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5788 return self._any_displayed_positions and len(self._positions) > 0 
    5789 ^^^^^^^^^^^^^^^^^^^^ 
    5790 TypeError: object of type 'NoneType' has no len() 
    5791  
    5792 TypeError: object of type 'NoneType' has no len() 
    5793  
    5794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5795 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5796 return self._any_displayed_positions and len(self._positions) > 0 
    5797 ^^^^^^^^^^^^^^^^^^^^ 
    5798  
    5799 See log for complete Python traceback. 
    5800  
    5801 Traceback (most recent call last): 
    5802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5803 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5804 val = col.display_value(item) 
    5805 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5807 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5808 val = self.value(instance) 
    5809 ^^^^^^^^^^^^^^^^^^^^ 
    5810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5811 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5812 return self.data_fetch(instance) 
    5813 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5815 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5816 if s.display and s.atoms.displays.any(): 
    5817 ^^^^^^^^^ 
    5818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5819 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5820 return Model.display.fget(self) 
    5821 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5823 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5824 return self._any_displayed_positions and len(self._positions) > 0 
    5825 ^^^^^^^^^^^^^^^^^^^^ 
    5826 TypeError: object of type 'NoneType' has no len() 
    5827  
    5828 TypeError: object of type 'NoneType' has no len() 
    5829  
    5830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5831 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5832 return self._any_displayed_positions and len(self._positions) > 0 
    5833 ^^^^^^^^^^^^^^^^^^^^ 
    5834  
    5835 See log for complete Python traceback. 
    5836  
    5837 Traceback (most recent call last): 
    5838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5839 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5840 val = col.display_value(item) 
    5841 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5843 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5844 val = self.value(instance) 
    5845 ^^^^^^^^^^^^^^^^^^^^ 
    5846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5847 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5848 return self.data_fetch(instance) 
    5849 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5851 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5852 if s.display and s.atoms.displays.any(): 
    5853 ^^^^^^^^^ 
    5854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5855 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5856 return Model.display.fget(self) 
    5857 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5859 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5860 return self._any_displayed_positions and len(self._positions) > 0 
    5861 ^^^^^^^^^^^^^^^^^^^^ 
    5862 TypeError: object of type 'NoneType' has no len() 
    5863  
    5864 TypeError: object of type 'NoneType' has no len() 
    5865  
    5866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5867 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5868 return self._any_displayed_positions and len(self._positions) > 0 
    5869 ^^^^^^^^^^^^^^^^^^^^ 
    5870  
    5871 See log for complete Python traceback. 
    5872  
    5873 Traceback (most recent call last): 
    5874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5875 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5876 val = col.display_value(item) 
    5877 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5879 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5880 val = self.value(instance) 
    5881 ^^^^^^^^^^^^^^^^^^^^ 
    5882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5883 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5884 return self.data_fetch(instance) 
    5885 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5887 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5888 if s.display and s.atoms.displays.any(): 
    5889 ^^^^^^^^^ 
    5890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5891 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5892 return Model.display.fget(self) 
    5893 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5895 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5896 return self._any_displayed_positions and len(self._positions) > 0 
    5897 ^^^^^^^^^^^^^^^^^^^^ 
    5898 TypeError: object of type 'NoneType' has no len() 
    5899  
    5900 TypeError: object of type 'NoneType' has no len() 
    5901  
    5902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5903 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5904 return self._any_displayed_positions and len(self._positions) > 0 
    5905 ^^^^^^^^^^^^^^^^^^^^ 
    5906  
    5907 See log for complete Python traceback. 
    5908  
    5909 Traceback (most recent call last): 
    5910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5911 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5912 val = col.display_value(item) 
    5913 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5915 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5916 val = self.value(instance) 
    5917 ^^^^^^^^^^^^^^^^^^^^ 
    5918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5919 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5920 return self.data_fetch(instance) 
    5921 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5923 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5924 if s.display and s.atoms.displays.any(): 
    5925 ^^^^^^^^^ 
    5926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5927 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5928 return Model.display.fget(self) 
    5929 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5931 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5932 return self._any_displayed_positions and len(self._positions) > 0 
    5933 ^^^^^^^^^^^^^^^^^^^^ 
    5934 TypeError: object of type 'NoneType' has no len() 
    5935  
    5936 TypeError: object of type 'NoneType' has no len() 
    5937  
    5938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5939 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5940 return self._any_displayed_positions and len(self._positions) > 0 
    5941 ^^^^^^^^^^^^^^^^^^^^ 
    5942  
    5943 See log for complete Python traceback. 
    5944  
    5945 Traceback (most recent call last): 
    5946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5947 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5948 val = col.display_value(item) 
    5949 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5951 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5952 val = self.value(instance) 
    5953 ^^^^^^^^^^^^^^^^^^^^ 
    5954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5955 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5956 return self.data_fetch(instance) 
    5957 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5959 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5960 if s.display and s.atoms.displays.any(): 
    5961 ^^^^^^^^^ 
    5962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5963 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    5964 return Model.display.fget(self) 
    5965 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    5966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5967 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5968 return self._any_displayed_positions and len(self._positions) > 0 
    5969 ^^^^^^^^^^^^^^^^^^^^ 
    5970 TypeError: object of type 'NoneType' has no len() 
    5971  
    5972 TypeError: object of type 'NoneType' has no len() 
    5973  
    5974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5975 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    5976 return self._any_displayed_positions and len(self._positions) > 0 
    5977 ^^^^^^^^^^^^^^^^^^^^ 
    5978  
    5979 See log for complete Python traceback. 
    5980  
    5981 Traceback (most recent call last): 
    5982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5983 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    5984 val = col.display_value(item) 
    5985 ^^^^^^^^^^^^^^^^^^^^^^^ 
    5986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5987 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    5988 val = self.value(instance) 
    5989 ^^^^^^^^^^^^^^^^^^^^ 
    5990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5991 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    5992 return self.data_fetch(instance) 
    5993 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    5994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5995 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    5996 if s.display and s.atoms.displays.any(): 
    5997 ^^^^^^^^^ 
    5998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    5999 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6000 return Model.display.fget(self) 
    6001 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6003 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6004 return self._any_displayed_positions and len(self._positions) > 0 
    6005 ^^^^^^^^^^^^^^^^^^^^ 
    6006 TypeError: object of type 'NoneType' has no len() 
    6007  
    6008 TypeError: object of type 'NoneType' has no len() 
    6009  
    6010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6011 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6012 return self._any_displayed_positions and len(self._positions) > 0 
    6013 ^^^^^^^^^^^^^^^^^^^^ 
    6014  
    6015 See log for complete Python traceback. 
    6016  
    6017 Traceback (most recent call last): 
    6018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6019 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6020 val = col.display_value(item) 
    6021 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6023 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6024 val = self.value(instance) 
    6025 ^^^^^^^^^^^^^^^^^^^^ 
    6026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6027 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6028 return self.data_fetch(instance) 
    6029 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6031 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6032 if s.display and s.atoms.displays.any(): 
    6033 ^^^^^^^^^ 
    6034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6035 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6036 return Model.display.fget(self) 
    6037 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6039 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6040 return self._any_displayed_positions and len(self._positions) > 0 
    6041 ^^^^^^^^^^^^^^^^^^^^ 
    6042 TypeError: object of type 'NoneType' has no len() 
    6043  
    6044 TypeError: object of type 'NoneType' has no len() 
    6045  
    6046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6047 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6048 return self._any_displayed_positions and len(self._positions) > 0 
    6049 ^^^^^^^^^^^^^^^^^^^^ 
    6050  
    6051 See log for complete Python traceback. 
    6052  
    6053 Traceback (most recent call last): 
    6054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6055 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6056 val = col.display_value(item) 
    6057 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6059 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6060 val = self.value(instance) 
    6061 ^^^^^^^^^^^^^^^^^^^^ 
    6062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6063 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6064 return self.data_fetch(instance) 
    6065 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6067 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6068 if s.display and s.atoms.displays.any(): 
    6069 ^^^^^^^^^ 
    6070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6071 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6072 return Model.display.fget(self) 
    6073 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6075 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6076 return self._any_displayed_positions and len(self._positions) > 0 
    6077 ^^^^^^^^^^^^^^^^^^^^ 
    6078 TypeError: object of type 'NoneType' has no len() 
    6079  
    6080 TypeError: object of type 'NoneType' has no len() 
    6081  
    6082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6083 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6084 return self._any_displayed_positions and len(self._positions) > 0 
    6085 ^^^^^^^^^^^^^^^^^^^^ 
    6086  
    6087 See log for complete Python traceback. 
    6088  
    6089 Traceback (most recent call last): 
    6090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6091 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6092 val = col.display_value(item) 
    6093 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6095 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6096 val = self.value(instance) 
    6097 ^^^^^^^^^^^^^^^^^^^^ 
    6098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6099 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6100 return self.data_fetch(instance) 
    6101 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6103 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6104 if s.display and s.atoms.displays.any(): 
    6105 ^^^^^^^^^ 
    6106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6107 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6108 return Model.display.fget(self) 
    6109 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6111 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6112 return self._any_displayed_positions and len(self._positions) > 0 
    6113 ^^^^^^^^^^^^^^^^^^^^ 
    6114 TypeError: object of type 'NoneType' has no len() 
    6115  
    6116 TypeError: object of type 'NoneType' has no len() 
    6117  
    6118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6119 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6120 return self._any_displayed_positions and len(self._positions) > 0 
    6121 ^^^^^^^^^^^^^^^^^^^^ 
    6122  
    6123 See log for complete Python traceback. 
    6124  
    6125 Traceback (most recent call last): 
    6126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6127 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6128 val = col.display_value(item) 
    6129 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6131 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6132 val = self.value(instance) 
    6133 ^^^^^^^^^^^^^^^^^^^^ 
    6134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6135 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6136 return self.data_fetch(instance) 
    6137 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6139 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6140 if s.display and s.atoms.displays.any(): 
    6141 ^^^^^^^^^ 
    6142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6143 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6144 return Model.display.fget(self) 
    6145 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6147 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6148 return self._any_displayed_positions and len(self._positions) > 0 
    6149 ^^^^^^^^^^^^^^^^^^^^ 
    6150 TypeError: object of type 'NoneType' has no len() 
    6151  
    6152 TypeError: object of type 'NoneType' has no len() 
    6153  
    6154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6155 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6156 return self._any_displayed_positions and len(self._positions) > 0 
    6157 ^^^^^^^^^^^^^^^^^^^^ 
    6158  
    6159 See log for complete Python traceback. 
    6160  
    6161 Traceback (most recent call last): 
    6162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6163 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6164 val = col.display_value(item) 
    6165 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6167 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6168 val = self.value(instance) 
    6169 ^^^^^^^^^^^^^^^^^^^^ 
    6170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6171 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6172 return self.data_fetch(instance) 
    6173 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6175 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6176 if s.display and s.atoms.displays.any(): 
    6177 ^^^^^^^^^ 
    6178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6179 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6180 return Model.display.fget(self) 
    6181 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6183 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6184 return self._any_displayed_positions and len(self._positions) > 0 
    6185 ^^^^^^^^^^^^^^^^^^^^ 
    6186 TypeError: object of type 'NoneType' has no len() 
    6187  
    6188 TypeError: object of type 'NoneType' has no len() 
    6189  
    6190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6191 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6192 return self._any_displayed_positions and len(self._positions) > 0 
    6193 ^^^^^^^^^^^^^^^^^^^^ 
    6194  
    6195 See log for complete Python traceback. 
    6196  
    6197 Traceback (most recent call last): 
    6198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6199 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6200 val = col.display_value(item) 
    6201 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6203 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6204 val = self.value(instance) 
    6205 ^^^^^^^^^^^^^^^^^^^^ 
    6206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6207 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6208 return self.data_fetch(instance) 
    6209 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6211 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6212 if s.display and s.atoms.displays.any(): 
    6213 ^^^^^^^^^ 
    6214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6215 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6216 return Model.display.fget(self) 
    6217 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6219 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6220 return self._any_displayed_positions and len(self._positions) > 0 
    6221 ^^^^^^^^^^^^^^^^^^^^ 
    6222 TypeError: object of type 'NoneType' has no len() 
    6223  
    6224 TypeError: object of type 'NoneType' has no len() 
    6225  
    6226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6227 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6228 return self._any_displayed_positions and len(self._positions) > 0 
    6229 ^^^^^^^^^^^^^^^^^^^^ 
    6230  
    6231 See log for complete Python traceback. 
    6232  
    6233 Traceback (most recent call last): 
    6234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6235 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6236 val = col.display_value(item) 
    6237 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6239 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6240 val = self.value(instance) 
    6241 ^^^^^^^^^^^^^^^^^^^^ 
    6242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6243 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6244 return self.data_fetch(instance) 
    6245 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6247 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6248 if s.display and s.atoms.displays.any(): 
    6249 ^^^^^^^^^ 
    6250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6251 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6252 return Model.display.fget(self) 
    6253 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6255 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6256 return self._any_displayed_positions and len(self._positions) > 0 
    6257 ^^^^^^^^^^^^^^^^^^^^ 
    6258 TypeError: object of type 'NoneType' has no len() 
    6259  
    6260 TypeError: object of type 'NoneType' has no len() 
    6261  
    6262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6263 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6264 return self._any_displayed_positions and len(self._positions) > 0 
    6265 ^^^^^^^^^^^^^^^^^^^^ 
    6266  
    6267 See log for complete Python traceback. 
    6268  
    6269 Traceback (most recent call last): 
    6270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6271 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6272 val = col.display_value(item) 
    6273 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6275 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6276 val = self.value(instance) 
    6277 ^^^^^^^^^^^^^^^^^^^^ 
    6278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6279 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6280 return self.data_fetch(instance) 
    6281 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6283 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6284 if s.display and s.atoms.displays.any(): 
    6285 ^^^^^^^^^ 
    6286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6287 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6288 return Model.display.fget(self) 
    6289 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6291 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6292 return self._any_displayed_positions and len(self._positions) > 0 
    6293 ^^^^^^^^^^^^^^^^^^^^ 
    6294 TypeError: object of type 'NoneType' has no len() 
    6295  
    6296 TypeError: object of type 'NoneType' has no len() 
    6297  
    6298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6299 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6300 return self._any_displayed_positions and len(self._positions) > 0 
    6301 ^^^^^^^^^^^^^^^^^^^^ 
    6302  
    6303 See log for complete Python traceback. 
    6304  
    6305 Traceback (most recent call last): 
    6306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6307 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6308 val = col.display_value(item) 
    6309 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6311 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6312 val = self.value(instance) 
    6313 ^^^^^^^^^^^^^^^^^^^^ 
    6314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6315 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6316 return self.data_fetch(instance) 
    6317 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6319 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6320 if s.display and s.atoms.displays.any(): 
    6321 ^^^^^^^^^ 
    6322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6323 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6324 return Model.display.fget(self) 
    6325 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6327 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6328 return self._any_displayed_positions and len(self._positions) > 0 
    6329 ^^^^^^^^^^^^^^^^^^^^ 
    6330 TypeError: object of type 'NoneType' has no len() 
    6331  
    6332 TypeError: object of type 'NoneType' has no len() 
    6333  
    6334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6335 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6336 return self._any_displayed_positions and len(self._positions) > 0 
    6337 ^^^^^^^^^^^^^^^^^^^^ 
    6338  
    6339 See log for complete Python traceback. 
    6340  
    6341 Traceback (most recent call last): 
    6342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6343 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6344 val = col.display_value(item) 
    6345 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6347 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6348 val = self.value(instance) 
    6349 ^^^^^^^^^^^^^^^^^^^^ 
    6350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6351 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6352 return self.data_fetch(instance) 
    6353 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6355 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6356 if s.display and s.atoms.displays.any(): 
    6357 ^^^^^^^^^ 
    6358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6359 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6360 return Model.display.fget(self) 
    6361 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6363 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6364 return self._any_displayed_positions and len(self._positions) > 0 
    6365 ^^^^^^^^^^^^^^^^^^^^ 
    6366 TypeError: object of type 'NoneType' has no len() 
    6367  
    6368 TypeError: object of type 'NoneType' has no len() 
    6369  
    6370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6371 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6372 return self._any_displayed_positions and len(self._positions) > 0 
    6373 ^^^^^^^^^^^^^^^^^^^^ 
    6374  
    6375 See log for complete Python traceback. 
    6376  
    6377 Traceback (most recent call last): 
    6378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6379 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6380 val = col.display_value(item) 
    6381 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6383 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6384 val = self.value(instance) 
    6385 ^^^^^^^^^^^^^^^^^^^^ 
    6386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6387 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6388 return self.data_fetch(instance) 
    6389 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6391 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6392 if s.display and s.atoms.displays.any(): 
    6393 ^^^^^^^^^ 
    6394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6395 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6396 return Model.display.fget(self) 
    6397 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6399 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6400 return self._any_displayed_positions and len(self._positions) > 0 
    6401 ^^^^^^^^^^^^^^^^^^^^ 
    6402 TypeError: object of type 'NoneType' has no len() 
    6403  
    6404 TypeError: object of type 'NoneType' has no len() 
    6405  
    6406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6407 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6408 return self._any_displayed_positions and len(self._positions) > 0 
    6409 ^^^^^^^^^^^^^^^^^^^^ 
    6410  
    6411 See log for complete Python traceback. 
    6412  
    6413 Traceback (most recent call last): 
    6414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6415 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6416 val = col.display_value(item) 
    6417 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6419 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6420 val = self.value(instance) 
    6421 ^^^^^^^^^^^^^^^^^^^^ 
    6422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6423 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6424 return self.data_fetch(instance) 
    6425 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6427 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6428 if s.display and s.atoms.displays.any(): 
    6429 ^^^^^^^^^ 
    6430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6431 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6432 return Model.display.fget(self) 
    6433 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6435 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6436 return self._any_displayed_positions and len(self._positions) > 0 
    6437 ^^^^^^^^^^^^^^^^^^^^ 
    6438 TypeError: object of type 'NoneType' has no len() 
    6439  
    6440 TypeError: object of type 'NoneType' has no len() 
    6441  
    6442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6443 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6444 return self._any_displayed_positions and len(self._positions) > 0 
    6445 ^^^^^^^^^^^^^^^^^^^^ 
    6446  
    6447 See log for complete Python traceback. 
    6448  
    6449 Traceback (most recent call last): 
    6450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6451 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6452 val = col.display_value(item) 
    6453 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6455 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6456 val = self.value(instance) 
    6457 ^^^^^^^^^^^^^^^^^^^^ 
    6458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6459 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6460 return self.data_fetch(instance) 
    6461 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6463 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6464 if s.display and s.atoms.displays.any(): 
    6465 ^^^^^^^^^ 
    6466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6467 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6468 return Model.display.fget(self) 
    6469 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6471 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6472 return self._any_displayed_positions and len(self._positions) > 0 
    6473 ^^^^^^^^^^^^^^^^^^^^ 
    6474 TypeError: object of type 'NoneType' has no len() 
    6475  
    6476 TypeError: object of type 'NoneType' has no len() 
    6477  
    6478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6479 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6480 return self._any_displayed_positions and len(self._positions) > 0 
    6481 ^^^^^^^^^^^^^^^^^^^^ 
    6482  
    6483 See log for complete Python traceback. 
    6484  
    6485 Traceback (most recent call last): 
    6486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6487 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6488 val = col.display_value(item) 
    6489 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6491 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6492 val = self.value(instance) 
    6493 ^^^^^^^^^^^^^^^^^^^^ 
    6494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6495 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6496 return self.data_fetch(instance) 
    6497 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6499 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6500 if s.display and s.atoms.displays.any(): 
    6501 ^^^^^^^^^ 
    6502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6503 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6504 return Model.display.fget(self) 
    6505 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6507 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6508 return self._any_displayed_positions and len(self._positions) > 0 
    6509 ^^^^^^^^^^^^^^^^^^^^ 
    6510 TypeError: object of type 'NoneType' has no len() 
    6511  
    6512 TypeError: object of type 'NoneType' has no len() 
    6513  
    6514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6515 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6516 return self._any_displayed_positions and len(self._positions) > 0 
    6517 ^^^^^^^^^^^^^^^^^^^^ 
    6518  
    6519 See log for complete Python traceback. 
    6520  
    6521 Traceback (most recent call last): 
    6522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6523 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6524 val = col.display_value(item) 
    6525 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6527 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6528 val = self.value(instance) 
    6529 ^^^^^^^^^^^^^^^^^^^^ 
    6530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6531 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6532 return self.data_fetch(instance) 
    6533 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6535 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6536 if s.display and s.atoms.displays.any(): 
    6537 ^^^^^^^^^ 
    6538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6539 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6540 return Model.display.fget(self) 
    6541 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6543 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6544 return self._any_displayed_positions and len(self._positions) > 0 
    6545 ^^^^^^^^^^^^^^^^^^^^ 
    6546 TypeError: object of type 'NoneType' has no len() 
    6547  
    6548 TypeError: object of type 'NoneType' has no len() 
    6549  
    6550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6551 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6552 return self._any_displayed_positions and len(self._positions) > 0 
    6553 ^^^^^^^^^^^^^^^^^^^^ 
    6554  
    6555 See log for complete Python traceback. 
    6556  
    6557 Traceback (most recent call last): 
    6558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6559 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6560 val = col.display_value(item) 
    6561 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6563 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6564 val = self.value(instance) 
    6565 ^^^^^^^^^^^^^^^^^^^^ 
    6566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6567 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6568 return self.data_fetch(instance) 
    6569 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6571 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6572 if s.display and s.atoms.displays.any(): 
    6573 ^^^^^^^^^ 
    6574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6575 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6576 return Model.display.fget(self) 
    6577 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6579 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6580 return self._any_displayed_positions and len(self._positions) > 0 
    6581 ^^^^^^^^^^^^^^^^^^^^ 
    6582 TypeError: object of type 'NoneType' has no len() 
    6583  
    6584 TypeError: object of type 'NoneType' has no len() 
    6585  
    6586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6587 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6588 return self._any_displayed_positions and len(self._positions) > 0 
    6589 ^^^^^^^^^^^^^^^^^^^^ 
    6590  
    6591 See log for complete Python traceback. 
    6592  
    6593 Traceback (most recent call last): 
    6594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6595 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6596 val = col.display_value(item) 
    6597 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6599 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6600 val = self.value(instance) 
    6601 ^^^^^^^^^^^^^^^^^^^^ 
    6602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6603 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6604 return self.data_fetch(instance) 
    6605 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6607 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6608 if s.display and s.atoms.displays.any(): 
    6609 ^^^^^^^^^ 
    6610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6611 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6612 return Model.display.fget(self) 
    6613 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6615 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6616 return self._any_displayed_positions and len(self._positions) > 0 
    6617 ^^^^^^^^^^^^^^^^^^^^ 
    6618 TypeError: object of type 'NoneType' has no len() 
    6619  
    6620 TypeError: object of type 'NoneType' has no len() 
    6621  
    6622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6623 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6624 return self._any_displayed_positions and len(self._positions) > 0 
    6625 ^^^^^^^^^^^^^^^^^^^^ 
    6626  
    6627 See log for complete Python traceback. 
    6628  
    6629 Traceback (most recent call last): 
    6630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6631 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6632 val = col.display_value(item) 
    6633 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6635 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6636 val = self.value(instance) 
    6637 ^^^^^^^^^^^^^^^^^^^^ 
    6638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6639 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6640 return self.data_fetch(instance) 
    6641 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6643 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6644 if s.display and s.atoms.displays.any(): 
    6645 ^^^^^^^^^ 
    6646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6647 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6648 return Model.display.fget(self) 
    6649 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6651 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6652 return self._any_displayed_positions and len(self._positions) > 0 
    6653 ^^^^^^^^^^^^^^^^^^^^ 
    6654 TypeError: object of type 'NoneType' has no len() 
    6655  
    6656 TypeError: object of type 'NoneType' has no len() 
    6657  
    6658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6659 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6660 return self._any_displayed_positions and len(self._positions) > 0 
    6661 ^^^^^^^^^^^^^^^^^^^^ 
    6662  
    6663 See log for complete Python traceback. 
    6664  
    6665 Traceback (most recent call last): 
    6666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6667 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6668 val = col.display_value(item) 
    6669 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6671 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6672 val = self.value(instance) 
    6673 ^^^^^^^^^^^^^^^^^^^^ 
    6674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6675 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6676 return self.data_fetch(instance) 
    6677 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6679 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6680 if s.display and s.atoms.displays.any(): 
    6681 ^^^^^^^^^ 
    6682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6683 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6684 return Model.display.fget(self) 
    6685 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6687 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6688 return self._any_displayed_positions and len(self._positions) > 0 
    6689 ^^^^^^^^^^^^^^^^^^^^ 
    6690 TypeError: object of type 'NoneType' has no len() 
    6691  
    6692 TypeError: object of type 'NoneType' has no len() 
    6693  
    6694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6695 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6696 return self._any_displayed_positions and len(self._positions) > 0 
    6697 ^^^^^^^^^^^^^^^^^^^^ 
    6698  
    6699 See log for complete Python traceback. 
    6700  
    6701 Traceback (most recent call last): 
    6702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6703 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6704 val = col.display_value(item) 
    6705 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6707 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6708 val = self.value(instance) 
    6709 ^^^^^^^^^^^^^^^^^^^^ 
    6710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6711 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6712 return self.data_fetch(instance) 
    6713 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6715 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6716 if s.display and s.atoms.displays.any(): 
    6717 ^^^^^^^^^ 
    6718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6719 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6720 return Model.display.fget(self) 
    6721 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6723 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6724 return self._any_displayed_positions and len(self._positions) > 0 
    6725 ^^^^^^^^^^^^^^^^^^^^ 
    6726 TypeError: object of type 'NoneType' has no len() 
    6727  
    6728 TypeError: object of type 'NoneType' has no len() 
    6729  
    6730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6731 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6732 return self._any_displayed_positions and len(self._positions) > 0 
    6733 ^^^^^^^^^^^^^^^^^^^^ 
    6734  
    6735 See log for complete Python traceback. 
    6736  
    6737 Traceback (most recent call last): 
    6738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6739 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6740 val = col.display_value(item) 
    6741 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6743 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6744 val = self.value(instance) 
    6745 ^^^^^^^^^^^^^^^^^^^^ 
    6746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6747 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6748 return self.data_fetch(instance) 
    6749 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6751 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6752 if s.display and s.atoms.displays.any(): 
    6753 ^^^^^^^^^ 
    6754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6755 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6756 return Model.display.fget(self) 
    6757 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6759 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6760 return self._any_displayed_positions and len(self._positions) > 0 
    6761 ^^^^^^^^^^^^^^^^^^^^ 
    6762 TypeError: object of type 'NoneType' has no len() 
    6763  
    6764 TypeError: object of type 'NoneType' has no len() 
    6765  
    6766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6767 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6768 return self._any_displayed_positions and len(self._positions) > 0 
    6769 ^^^^^^^^^^^^^^^^^^^^ 
    6770  
    6771 See log for complete Python traceback. 
    6772  
    6773 Traceback (most recent call last): 
    6774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6775 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6776 val = col.display_value(item) 
    6777 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6779 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6780 val = self.value(instance) 
    6781 ^^^^^^^^^^^^^^^^^^^^ 
    6782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6783 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6784 return self.data_fetch(instance) 
    6785 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6787 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6788 if s.display and s.atoms.displays.any(): 
    6789 ^^^^^^^^^ 
    6790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6791 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6792 return Model.display.fget(self) 
    6793 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6795 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6796 return self._any_displayed_positions and len(self._positions) > 0 
    6797 ^^^^^^^^^^^^^^^^^^^^ 
    6798 TypeError: object of type 'NoneType' has no len() 
    6799  
    6800 TypeError: object of type 'NoneType' has no len() 
    6801  
    6802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6803 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6804 return self._any_displayed_positions and len(self._positions) > 0 
    6805 ^^^^^^^^^^^^^^^^^^^^ 
    6806  
    6807 See log for complete Python traceback. 
    6808  
    6809 Traceback (most recent call last): 
    6810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6811 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6812 val = col.display_value(item) 
    6813 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6815 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6816 val = self.value(instance) 
    6817 ^^^^^^^^^^^^^^^^^^^^ 
    6818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6819 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6820 return self.data_fetch(instance) 
    6821 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6823 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6824 if s.display and s.atoms.displays.any(): 
    6825 ^^^^^^^^^ 
    6826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6827 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6828 return Model.display.fget(self) 
    6829 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6831 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6832 return self._any_displayed_positions and len(self._positions) > 0 
    6833 ^^^^^^^^^^^^^^^^^^^^ 
    6834 TypeError: object of type 'NoneType' has no len() 
    6835  
    6836 TypeError: object of type 'NoneType' has no len() 
    6837  
    6838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6839 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6840 return self._any_displayed_positions and len(self._positions) > 0 
    6841 ^^^^^^^^^^^^^^^^^^^^ 
    6842  
    6843 See log for complete Python traceback. 
    6844  
    6845 Traceback (most recent call last): 
    6846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6847 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6848 val = col.display_value(item) 
    6849 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6851 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6852 val = self.value(instance) 
    6853 ^^^^^^^^^^^^^^^^^^^^ 
    6854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6855 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6856 return self.data_fetch(instance) 
    6857 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6859 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6860 if s.display and s.atoms.displays.any(): 
    6861 ^^^^^^^^^ 
    6862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6863 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6864 return Model.display.fget(self) 
    6865 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6867 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6868 return self._any_displayed_positions and len(self._positions) > 0 
    6869 ^^^^^^^^^^^^^^^^^^^^ 
    6870 TypeError: object of type 'NoneType' has no len() 
    6871  
    6872 TypeError: object of type 'NoneType' has no len() 
    6873  
    6874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6875 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6876 return self._any_displayed_positions and len(self._positions) > 0 
    6877 ^^^^^^^^^^^^^^^^^^^^ 
    6878  
    6879 See log for complete Python traceback. 
    6880  
    6881 Traceback (most recent call last): 
    6882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6883 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6884 val = col.display_value(item) 
    6885 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6887 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6888 val = self.value(instance) 
    6889 ^^^^^^^^^^^^^^^^^^^^ 
    6890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6891 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6892 return self.data_fetch(instance) 
    6893 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6895 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6896 if s.display and s.atoms.displays.any(): 
    6897 ^^^^^^^^^ 
    6898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6899 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6900 return Model.display.fget(self) 
    6901 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6903 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6904 return self._any_displayed_positions and len(self._positions) > 0 
    6905 ^^^^^^^^^^^^^^^^^^^^ 
    6906 TypeError: object of type 'NoneType' has no len() 
    6907  
    6908 TypeError: object of type 'NoneType' has no len() 
    6909  
    6910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6911 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6912 return self._any_displayed_positions and len(self._positions) > 0 
    6913 ^^^^^^^^^^^^^^^^^^^^ 
    6914  
    6915 See log for complete Python traceback. 
    6916  
    6917 Traceback (most recent call last): 
    6918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6919 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6920 val = col.display_value(item) 
    6921 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6923 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6924 val = self.value(instance) 
    6925 ^^^^^^^^^^^^^^^^^^^^ 
    6926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6927 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6928 return self.data_fetch(instance) 
    6929 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6931 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6932 if s.display and s.atoms.displays.any(): 
    6933 ^^^^^^^^^ 
    6934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6935 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6936 return Model.display.fget(self) 
    6937 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6939 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6940 return self._any_displayed_positions and len(self._positions) > 0 
    6941 ^^^^^^^^^^^^^^^^^^^^ 
    6942 TypeError: object of type 'NoneType' has no len() 
    6943  
    6944 TypeError: object of type 'NoneType' has no len() 
    6945  
    6946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6947 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6948 return self._any_displayed_positions and len(self._positions) > 0 
    6949 ^^^^^^^^^^^^^^^^^^^^ 
    6950  
    6951 See log for complete Python traceback. 
    6952  
    6953 Traceback (most recent call last): 
    6954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6955 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6956 val = col.display_value(item) 
    6957 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6959 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6960 val = self.value(instance) 
    6961 ^^^^^^^^^^^^^^^^^^^^ 
    6962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6963 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    6964 return self.data_fetch(instance) 
    6965 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    6966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6967 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    6968 if s.display and s.atoms.displays.any(): 
    6969 ^^^^^^^^^ 
    6970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6971 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    6972 return Model.display.fget(self) 
    6973 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    6974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6975 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6976 return self._any_displayed_positions and len(self._positions) > 0 
    6977 ^^^^^^^^^^^^^^^^^^^^ 
    6978 TypeError: object of type 'NoneType' has no len() 
    6979  
    6980 TypeError: object of type 'NoneType' has no len() 
    6981  
    6982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6983 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    6984 return self._any_displayed_positions and len(self._positions) > 0 
    6985 ^^^^^^^^^^^^^^^^^^^^ 
    6986  
    6987 See log for complete Python traceback. 
    6988  
    6989 Traceback (most recent call last): 
    6990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6991 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    6992 val = col.display_value(item) 
    6993 ^^^^^^^^^^^^^^^^^^^^^^^ 
    6994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6995 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    6996 val = self.value(instance) 
    6997 ^^^^^^^^^^^^^^^^^^^^ 
    6998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    6999 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7000 return self.data_fetch(instance) 
    7001 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7003 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7004 if s.display and s.atoms.displays.any(): 
    7005 ^^^^^^^^^ 
    7006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7007 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7008 return Model.display.fget(self) 
    7009 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7011 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7012 return self._any_displayed_positions and len(self._positions) > 0 
    7013 ^^^^^^^^^^^^^^^^^^^^ 
    7014 TypeError: object of type 'NoneType' has no len() 
    7015  
    7016 TypeError: object of type 'NoneType' has no len() 
    7017  
    7018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7019 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7020 return self._any_displayed_positions and len(self._positions) > 0 
    7021 ^^^^^^^^^^^^^^^^^^^^ 
    7022  
    7023 See log for complete Python traceback. 
    7024  
    7025 Traceback (most recent call last): 
    7026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7027 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7028 val = col.display_value(item) 
    7029 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7031 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7032 val = self.value(instance) 
    7033 ^^^^^^^^^^^^^^^^^^^^ 
    7034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7035 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7036 return self.data_fetch(instance) 
    7037 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7039 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7040 if s.display and s.atoms.displays.any(): 
    7041 ^^^^^^^^^ 
    7042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7043 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7044 return Model.display.fget(self) 
    7045 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7047 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7048 return self._any_displayed_positions and len(self._positions) > 0 
    7049 ^^^^^^^^^^^^^^^^^^^^ 
    7050 TypeError: object of type 'NoneType' has no len() 
    7051  
    7052 TypeError: object of type 'NoneType' has no len() 
    7053  
    7054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7055 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7056 return self._any_displayed_positions and len(self._positions) > 0 
    7057 ^^^^^^^^^^^^^^^^^^^^ 
    7058  
    7059 See log for complete Python traceback. 
    7060  
    7061 Traceback (most recent call last): 
    7062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7063 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7064 val = col.display_value(item) 
    7065 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7067 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7068 val = self.value(instance) 
    7069 ^^^^^^^^^^^^^^^^^^^^ 
    7070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7071 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7072 return self.data_fetch(instance) 
    7073 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7075 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7076 if s.display and s.atoms.displays.any(): 
    7077 ^^^^^^^^^ 
    7078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7079 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7080 return Model.display.fget(self) 
    7081 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7083 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7084 return self._any_displayed_positions and len(self._positions) > 0 
    7085 ^^^^^^^^^^^^^^^^^^^^ 
    7086 TypeError: object of type 'NoneType' has no len() 
    7087  
    7088 TypeError: object of type 'NoneType' has no len() 
    7089  
    7090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7091 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7092 return self._any_displayed_positions and len(self._positions) > 0 
    7093 ^^^^^^^^^^^^^^^^^^^^ 
    7094  
    7095 See log for complete Python traceback. 
    7096  
    7097 Traceback (most recent call last): 
    7098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7099 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7100 val = col.display_value(item) 
    7101 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7103 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7104 val = self.value(instance) 
    7105 ^^^^^^^^^^^^^^^^^^^^ 
    7106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7107 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7108 return self.data_fetch(instance) 
    7109 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7111 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7112 if s.display and s.atoms.displays.any(): 
    7113 ^^^^^^^^^ 
    7114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7115 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7116 return Model.display.fget(self) 
    7117 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7119 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7120 return self._any_displayed_positions and len(self._positions) > 0 
    7121 ^^^^^^^^^^^^^^^^^^^^ 
    7122 TypeError: object of type 'NoneType' has no len() 
    7123  
    7124 TypeError: object of type 'NoneType' has no len() 
    7125  
    7126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7127 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7128 return self._any_displayed_positions and len(self._positions) > 0 
    7129 ^^^^^^^^^^^^^^^^^^^^ 
    7130  
    7131 See log for complete Python traceback. 
    7132  
    7133 Traceback (most recent call last): 
    7134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7135 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7136 val = col.display_value(item) 
    7137 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7139 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7140 val = self.value(instance) 
    7141 ^^^^^^^^^^^^^^^^^^^^ 
    7142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7143 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7144 return self.data_fetch(instance) 
    7145 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7147 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7148 if s.display and s.atoms.displays.any(): 
    7149 ^^^^^^^^^ 
    7150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7151 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7152 return Model.display.fget(self) 
    7153 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7155 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7156 return self._any_displayed_positions and len(self._positions) > 0 
    7157 ^^^^^^^^^^^^^^^^^^^^ 
    7158 TypeError: object of type 'NoneType' has no len() 
    7159  
    7160 TypeError: object of type 'NoneType' has no len() 
    7161  
    7162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7163 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7164 return self._any_displayed_positions and len(self._positions) > 0 
    7165 ^^^^^^^^^^^^^^^^^^^^ 
    7166  
    7167 See log for complete Python traceback. 
    7168  
    7169 Traceback (most recent call last): 
    7170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7171 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7172 val = col.display_value(item) 
    7173 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7175 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7176 val = self.value(instance) 
    7177 ^^^^^^^^^^^^^^^^^^^^ 
    7178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7179 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7180 return self.data_fetch(instance) 
    7181 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7183 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7184 if s.display and s.atoms.displays.any(): 
    7185 ^^^^^^^^^ 
    7186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7187 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7188 return Model.display.fget(self) 
    7189 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7191 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7192 return self._any_displayed_positions and len(self._positions) > 0 
    7193 ^^^^^^^^^^^^^^^^^^^^ 
    7194 TypeError: object of type 'NoneType' has no len() 
    7195  
    7196 TypeError: object of type 'NoneType' has no len() 
    7197  
    7198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7199 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7200 return self._any_displayed_positions and len(self._positions) > 0 
    7201 ^^^^^^^^^^^^^^^^^^^^ 
    7202  
    7203 See log for complete Python traceback. 
    7204  
    7205 Traceback (most recent call last): 
    7206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7207 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7208 val = col.display_value(item) 
    7209 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7211 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7212 val = self.value(instance) 
    7213 ^^^^^^^^^^^^^^^^^^^^ 
    7214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7215 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7216 return self.data_fetch(instance) 
    7217 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7219 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7220 if s.display and s.atoms.displays.any(): 
    7221 ^^^^^^^^^ 
    7222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7223 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7224 return Model.display.fget(self) 
    7225 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7227 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7228 return self._any_displayed_positions and len(self._positions) > 0 
    7229 ^^^^^^^^^^^^^^^^^^^^ 
    7230 TypeError: object of type 'NoneType' has no len() 
    7231  
    7232 TypeError: object of type 'NoneType' has no len() 
    7233  
    7234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7235 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7236 return self._any_displayed_positions and len(self._positions) > 0 
    7237 ^^^^^^^^^^^^^^^^^^^^ 
    7238  
    7239 See log for complete Python traceback. 
    7240  
    7241 Traceback (most recent call last): 
    7242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7243 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7244 val = col.display_value(item) 
    7245 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7247 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7248 val = self.value(instance) 
    7249 ^^^^^^^^^^^^^^^^^^^^ 
    7250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7251 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7252 return self.data_fetch(instance) 
    7253 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7255 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7256 if s.display and s.atoms.displays.any(): 
    7257 ^^^^^^^^^ 
    7258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7259 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7260 return Model.display.fget(self) 
    7261 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7263 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7264 return self._any_displayed_positions and len(self._positions) > 0 
    7265 ^^^^^^^^^^^^^^^^^^^^ 
    7266 TypeError: object of type 'NoneType' has no len() 
    7267  
    7268 TypeError: object of type 'NoneType' has no len() 
    7269  
    7270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7271 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7272 return self._any_displayed_positions and len(self._positions) > 0 
    7273 ^^^^^^^^^^^^^^^^^^^^ 
    7274  
    7275 See log for complete Python traceback. 
    7276  
    7277 Traceback (most recent call last): 
    7278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7279 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7280 val = col.display_value(item) 
    7281 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7283 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7284 val = self.value(instance) 
    7285 ^^^^^^^^^^^^^^^^^^^^ 
    7286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7287 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7288 return self.data_fetch(instance) 
    7289 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7291 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7292 if s.display and s.atoms.displays.any(): 
    7293 ^^^^^^^^^ 
    7294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7295 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7296 return Model.display.fget(self) 
    7297 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7299 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7300 return self._any_displayed_positions and len(self._positions) > 0 
    7301 ^^^^^^^^^^^^^^^^^^^^ 
    7302 TypeError: object of type 'NoneType' has no len() 
    7303  
    7304 TypeError: object of type 'NoneType' has no len() 
    7305  
    7306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7307 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7308 return self._any_displayed_positions and len(self._positions) > 0 
    7309 ^^^^^^^^^^^^^^^^^^^^ 
    7310  
    7311 See log for complete Python traceback. 
    7312  
    7313 Traceback (most recent call last): 
    7314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7315 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7316 val = col.display_value(item) 
    7317 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7319 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7320 val = self.value(instance) 
    7321 ^^^^^^^^^^^^^^^^^^^^ 
    7322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7323 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7324 return self.data_fetch(instance) 
    7325 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7327 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7328 if s.display and s.atoms.displays.any(): 
    7329 ^^^^^^^^^ 
    7330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7331 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7332 return Model.display.fget(self) 
    7333 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7335 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7336 return self._any_displayed_positions and len(self._positions) > 0 
    7337 ^^^^^^^^^^^^^^^^^^^^ 
    7338 TypeError: object of type 'NoneType' has no len() 
    7339  
    7340 TypeError: object of type 'NoneType' has no len() 
    7341  
    7342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7343 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7344 return self._any_displayed_positions and len(self._positions) > 0 
    7345 ^^^^^^^^^^^^^^^^^^^^ 
    7346  
    7347 See log for complete Python traceback. 
    7348  
    7349 Traceback (most recent call last): 
    7350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7351 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7352 val = col.display_value(item) 
    7353 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7355 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7356 val = self.value(instance) 
    7357 ^^^^^^^^^^^^^^^^^^^^ 
    7358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7359 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7360 return self.data_fetch(instance) 
    7361 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7363 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7364 if s.display and s.atoms.displays.any(): 
    7365 ^^^^^^^^^ 
    7366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7367 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7368 return Model.display.fget(self) 
    7369 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7371 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7372 return self._any_displayed_positions and len(self._positions) > 0 
    7373 ^^^^^^^^^^^^^^^^^^^^ 
    7374 TypeError: object of type 'NoneType' has no len() 
    7375  
    7376 TypeError: object of type 'NoneType' has no len() 
    7377  
    7378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7379 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7380 return self._any_displayed_positions and len(self._positions) > 0 
    7381 ^^^^^^^^^^^^^^^^^^^^ 
    7382  
    7383 See log for complete Python traceback. 
    7384  
    7385 Traceback (most recent call last): 
    7386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7387 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7388 val = col.display_value(item) 
    7389 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7391 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7392 val = self.value(instance) 
    7393 ^^^^^^^^^^^^^^^^^^^^ 
    7394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7395 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7396 return self.data_fetch(instance) 
    7397 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7399 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7400 if s.display and s.atoms.displays.any(): 
    7401 ^^^^^^^^^ 
    7402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7403 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7404 return Model.display.fget(self) 
    7405 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7407 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7408 return self._any_displayed_positions and len(self._positions) > 0 
    7409 ^^^^^^^^^^^^^^^^^^^^ 
    7410 TypeError: object of type 'NoneType' has no len() 
    7411  
    7412 TypeError: object of type 'NoneType' has no len() 
    7413  
    7414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7415 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7416 return self._any_displayed_positions and len(self._positions) > 0 
    7417 ^^^^^^^^^^^^^^^^^^^^ 
    7418  
    7419 See log for complete Python traceback. 
    7420  
    7421 Traceback (most recent call last): 
    7422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7423 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7424 val = col.display_value(item) 
    7425 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7427 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7428 val = self.value(instance) 
    7429 ^^^^^^^^^^^^^^^^^^^^ 
    7430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7431 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7432 return self.data_fetch(instance) 
    7433 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7435 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7436 if s.display and s.atoms.displays.any(): 
    7437 ^^^^^^^^^ 
    7438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7439 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7440 return Model.display.fget(self) 
    7441 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7443 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7444 return self._any_displayed_positions and len(self._positions) > 0 
    7445 ^^^^^^^^^^^^^^^^^^^^ 
    7446 TypeError: object of type 'NoneType' has no len() 
    7447  
    7448 TypeError: object of type 'NoneType' has no len() 
    7449  
    7450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7451 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7452 return self._any_displayed_positions and len(self._positions) > 0 
    7453 ^^^^^^^^^^^^^^^^^^^^ 
    7454  
    7455 See log for complete Python traceback. 
    7456  
    7457 Traceback (most recent call last): 
    7458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7459 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7460 val = col.display_value(item) 
    7461 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7463 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7464 val = self.value(instance) 
    7465 ^^^^^^^^^^^^^^^^^^^^ 
    7466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7467 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7468 return self.data_fetch(instance) 
    7469 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7471 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7472 if s.display and s.atoms.displays.any(): 
    7473 ^^^^^^^^^ 
    7474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7475 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7476 return Model.display.fget(self) 
    7477 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7479 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7480 return self._any_displayed_positions and len(self._positions) > 0 
    7481 ^^^^^^^^^^^^^^^^^^^^ 
    7482 TypeError: object of type 'NoneType' has no len() 
    7483  
    7484 TypeError: object of type 'NoneType' has no len() 
    7485  
    7486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7487 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7488 return self._any_displayed_positions and len(self._positions) > 0 
    7489 ^^^^^^^^^^^^^^^^^^^^ 
    7490  
    7491 See log for complete Python traceback. 
    7492  
    7493 Traceback (most recent call last): 
    7494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7495 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7496 val = col.display_value(item) 
    7497 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7499 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7500 val = self.value(instance) 
    7501 ^^^^^^^^^^^^^^^^^^^^ 
    7502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7503 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7504 return self.data_fetch(instance) 
    7505 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7507 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7508 if s.display and s.atoms.displays.any(): 
    7509 ^^^^^^^^^ 
    7510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7511 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7512 return Model.display.fget(self) 
    7513 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7515 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7516 return self._any_displayed_positions and len(self._positions) > 0 
    7517 ^^^^^^^^^^^^^^^^^^^^ 
    7518 TypeError: object of type 'NoneType' has no len() 
    7519  
    7520 TypeError: object of type 'NoneType' has no len() 
    7521  
    7522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7523 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7524 return self._any_displayed_positions and len(self._positions) > 0 
    7525 ^^^^^^^^^^^^^^^^^^^^ 
    7526  
    7527 See log for complete Python traceback. 
    7528  
    7529 Traceback (most recent call last): 
    7530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7531 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7532 val = col.display_value(item) 
    7533 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7535 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7536 val = self.value(instance) 
    7537 ^^^^^^^^^^^^^^^^^^^^ 
    7538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7539 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7540 return self.data_fetch(instance) 
    7541 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7543 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7544 if s.display and s.atoms.displays.any(): 
    7545 ^^^^^^^^^ 
    7546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7547 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7548 return Model.display.fget(self) 
    7549 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7551 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7552 return self._any_displayed_positions and len(self._positions) > 0 
    7553 ^^^^^^^^^^^^^^^^^^^^ 
    7554 TypeError: object of type 'NoneType' has no len() 
    7555  
    7556 TypeError: object of type 'NoneType' has no len() 
    7557  
    7558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7559 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7560 return self._any_displayed_positions and len(self._positions) > 0 
    7561 ^^^^^^^^^^^^^^^^^^^^ 
    7562  
    7563 See log for complete Python traceback. 
    7564  
    7565 Traceback (most recent call last): 
    7566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7567 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7568 val = col.display_value(item) 
    7569 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7571 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7572 val = self.value(instance) 
    7573 ^^^^^^^^^^^^^^^^^^^^ 
    7574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7575 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7576 return self.data_fetch(instance) 
    7577 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7579 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7580 if s.display and s.atoms.displays.any(): 
    7581 ^^^^^^^^^ 
    7582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7583 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7584 return Model.display.fget(self) 
    7585 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7587 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7588 return self._any_displayed_positions and len(self._positions) > 0 
    7589 ^^^^^^^^^^^^^^^^^^^^ 
    7590 TypeError: object of type 'NoneType' has no len() 
    7591  
    7592 TypeError: object of type 'NoneType' has no len() 
    7593  
    7594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7595 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7596 return self._any_displayed_positions and len(self._positions) > 0 
    7597 ^^^^^^^^^^^^^^^^^^^^ 
    7598  
    7599 See log for complete Python traceback. 
    7600  
    7601 Traceback (most recent call last): 
    7602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7603 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7604 val = col.display_value(item) 
    7605 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7607 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7608 val = self.value(instance) 
    7609 ^^^^^^^^^^^^^^^^^^^^ 
    7610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7611 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7612 return self.data_fetch(instance) 
    7613 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7615 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7616 if s.display and s.atoms.displays.any(): 
    7617 ^^^^^^^^^ 
    7618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7619 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7620 return Model.display.fget(self) 
    7621 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7623 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7624 return self._any_displayed_positions and len(self._positions) > 0 
    7625 ^^^^^^^^^^^^^^^^^^^^ 
    7626 TypeError: object of type 'NoneType' has no len() 
    7627  
    7628 TypeError: object of type 'NoneType' has no len() 
    7629  
    7630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7631 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7632 return self._any_displayed_positions and len(self._positions) > 0 
    7633 ^^^^^^^^^^^^^^^^^^^^ 
    7634  
    7635 See log for complete Python traceback. 
    7636  
    7637 Traceback (most recent call last): 
    7638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7639 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7640 val = col.display_value(item) 
    7641 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7643 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7644 val = self.value(instance) 
    7645 ^^^^^^^^^^^^^^^^^^^^ 
    7646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7647 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7648 return self.data_fetch(instance) 
    7649 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7651 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7652 if s.display and s.atoms.displays.any(): 
    7653 ^^^^^^^^^ 
    7654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7655 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7656 return Model.display.fget(self) 
    7657 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7659 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7660 return self._any_displayed_positions and len(self._positions) > 0 
    7661 ^^^^^^^^^^^^^^^^^^^^ 
    7662 TypeError: object of type 'NoneType' has no len() 
    7663  
    7664 TypeError: object of type 'NoneType' has no len() 
    7665  
    7666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7667 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7668 return self._any_displayed_positions and len(self._positions) > 0 
    7669 ^^^^^^^^^^^^^^^^^^^^ 
    7670  
    7671 See log for complete Python traceback. 
    7672  
    7673 Traceback (most recent call last): 
    7674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7675 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7676 val = col.display_value(item) 
    7677 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7679 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7680 val = self.value(instance) 
    7681 ^^^^^^^^^^^^^^^^^^^^ 
    7682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7683 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7684 return self.data_fetch(instance) 
    7685 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7687 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7688 if s.display and s.atoms.displays.any(): 
    7689 ^^^^^^^^^ 
    7690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7691 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7692 return Model.display.fget(self) 
    7693 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7695 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7696 return self._any_displayed_positions and len(self._positions) > 0 
    7697 ^^^^^^^^^^^^^^^^^^^^ 
    7698 TypeError: object of type 'NoneType' has no len() 
    7699  
    7700 TypeError: object of type 'NoneType' has no len() 
    7701  
    7702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7703 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7704 return self._any_displayed_positions and len(self._positions) > 0 
    7705 ^^^^^^^^^^^^^^^^^^^^ 
    7706  
    7707 See log for complete Python traceback. 
    7708  
    7709 Traceback (most recent call last): 
    7710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7711 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7712 val = col.display_value(item) 
    7713 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7715 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7716 val = self.value(instance) 
    7717 ^^^^^^^^^^^^^^^^^^^^ 
    7718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7719 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7720 return self.data_fetch(instance) 
    7721 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7723 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7724 if s.display and s.atoms.displays.any(): 
    7725 ^^^^^^^^^ 
    7726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7727 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7728 return Model.display.fget(self) 
    7729 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7731 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7732 return self._any_displayed_positions and len(self._positions) > 0 
    7733 ^^^^^^^^^^^^^^^^^^^^ 
    7734 TypeError: object of type 'NoneType' has no len() 
    7735  
    7736 TypeError: object of type 'NoneType' has no len() 
    7737  
    7738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7739 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7740 return self._any_displayed_positions and len(self._positions) > 0 
    7741 ^^^^^^^^^^^^^^^^^^^^ 
    7742  
    7743 See log for complete Python traceback. 
    7744  
    7745 Traceback (most recent call last): 
    7746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7747 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7748 val = col.display_value(item) 
    7749 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7751 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7752 val = self.value(instance) 
    7753 ^^^^^^^^^^^^^^^^^^^^ 
    7754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7755 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7756 return self.data_fetch(instance) 
    7757 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7759 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7760 if s.display and s.atoms.displays.any(): 
    7761 ^^^^^^^^^ 
    7762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7763 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7764 return Model.display.fget(self) 
    7765 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7767 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7768 return self._any_displayed_positions and len(self._positions) > 0 
    7769 ^^^^^^^^^^^^^^^^^^^^ 
    7770 TypeError: object of type 'NoneType' has no len() 
    7771  
    7772 TypeError: object of type 'NoneType' has no len() 
    7773  
    7774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7775 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7776 return self._any_displayed_positions and len(self._positions) > 0 
    7777 ^^^^^^^^^^^^^^^^^^^^ 
    7778  
    7779 See log for complete Python traceback. 
    7780  
    7781 Traceback (most recent call last): 
    7782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7783 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7784 val = col.display_value(item) 
    7785 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7787 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7788 val = self.value(instance) 
    7789 ^^^^^^^^^^^^^^^^^^^^ 
    7790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7791 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7792 return self.data_fetch(instance) 
    7793 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7795 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7796 if s.display and s.atoms.displays.any(): 
    7797 ^^^^^^^^^ 
    7798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7799 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7800 return Model.display.fget(self) 
    7801 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7803 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7804 return self._any_displayed_positions and len(self._positions) > 0 
    7805 ^^^^^^^^^^^^^^^^^^^^ 
    7806 TypeError: object of type 'NoneType' has no len() 
    7807  
    7808 TypeError: object of type 'NoneType' has no len() 
    7809  
    7810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7811 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7812 return self._any_displayed_positions and len(self._positions) > 0 
    7813 ^^^^^^^^^^^^^^^^^^^^ 
    7814  
    7815 See log for complete Python traceback. 
    7816  
    7817 Traceback (most recent call last): 
    7818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7819 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7820 val = col.display_value(item) 
    7821 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7823 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7824 val = self.value(instance) 
    7825 ^^^^^^^^^^^^^^^^^^^^ 
    7826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7827 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7828 return self.data_fetch(instance) 
    7829 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7831 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7832 if s.display and s.atoms.displays.any(): 
    7833 ^^^^^^^^^ 
    7834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7835 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7836 return Model.display.fget(self) 
    7837 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7839 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7840 return self._any_displayed_positions and len(self._positions) > 0 
    7841 ^^^^^^^^^^^^^^^^^^^^ 
    7842 TypeError: object of type 'NoneType' has no len() 
    7843  
    7844 TypeError: object of type 'NoneType' has no len() 
    7845  
    7846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7847 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7848 return self._any_displayed_positions and len(self._positions) > 0 
    7849 ^^^^^^^^^^^^^^^^^^^^ 
    7850  
    7851 See log for complete Python traceback. 
    7852  
    7853 Traceback (most recent call last): 
    7854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7855 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7856 val = col.display_value(item) 
    7857 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7859 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7860 val = self.value(instance) 
    7861 ^^^^^^^^^^^^^^^^^^^^ 
    7862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7863 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7864 return self.data_fetch(instance) 
    7865 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7867 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7868 if s.display and s.atoms.displays.any(): 
    7869 ^^^^^^^^^ 
    7870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7871 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7872 return Model.display.fget(self) 
    7873 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7875 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7876 return self._any_displayed_positions and len(self._positions) > 0 
    7877 ^^^^^^^^^^^^^^^^^^^^ 
    7878 TypeError: object of type 'NoneType' has no len() 
    7879  
    7880 TypeError: object of type 'NoneType' has no len() 
    7881  
    7882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7883 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7884 return self._any_displayed_positions and len(self._positions) > 0 
    7885 ^^^^^^^^^^^^^^^^^^^^ 
    7886  
    7887 See log for complete Python traceback. 
    7888  
    7889 Traceback (most recent call last): 
    7890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7891 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7892 val = col.display_value(item) 
    7893 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7895 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7896 val = self.value(instance) 
    7897 ^^^^^^^^^^^^^^^^^^^^ 
    7898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7899 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7900 return self.data_fetch(instance) 
    7901 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7903 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7904 if s.display and s.atoms.displays.any(): 
    7905 ^^^^^^^^^ 
    7906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7907 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7908 return Model.display.fget(self) 
    7909 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7911 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7912 return self._any_displayed_positions and len(self._positions) > 0 
    7913 ^^^^^^^^^^^^^^^^^^^^ 
    7914 TypeError: object of type 'NoneType' has no len() 
    7915  
    7916 TypeError: object of type 'NoneType' has no len() 
    7917  
    7918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7919 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7920 return self._any_displayed_positions and len(self._positions) > 0 
    7921 ^^^^^^^^^^^^^^^^^^^^ 
    7922  
    7923 See log for complete Python traceback. 
    7924  
    7925 Traceback (most recent call last): 
    7926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7927 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7928 val = col.display_value(item) 
    7929 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7931 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7932 val = self.value(instance) 
    7933 ^^^^^^^^^^^^^^^^^^^^ 
    7934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7935 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7936 return self.data_fetch(instance) 
    7937 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7939 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7940 if s.display and s.atoms.displays.any(): 
    7941 ^^^^^^^^^ 
    7942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7943 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7944 return Model.display.fget(self) 
    7945 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7947 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7948 return self._any_displayed_positions and len(self._positions) > 0 
    7949 ^^^^^^^^^^^^^^^^^^^^ 
    7950 TypeError: object of type 'NoneType' has no len() 
    7951  
    7952 TypeError: object of type 'NoneType' has no len() 
    7953  
    7954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7955 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7956 return self._any_displayed_positions and len(self._positions) > 0 
    7957 ^^^^^^^^^^^^^^^^^^^^ 
    7958  
    7959 See log for complete Python traceback. 
    7960  
    7961 Traceback (most recent call last): 
    7962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7963 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    7964 val = col.display_value(item) 
    7965 ^^^^^^^^^^^^^^^^^^^^^^^ 
    7966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7967 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    7968 val = self.value(instance) 
    7969 ^^^^^^^^^^^^^^^^^^^^ 
    7970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7971 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    7972 return self.data_fetch(instance) 
    7973 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    7974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7975 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    7976 if s.display and s.atoms.displays.any(): 
    7977 ^^^^^^^^^ 
    7978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7979 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    7980 return Model.display.fget(self) 
    7981 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    7982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7983 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7984 return self._any_displayed_positions and len(self._positions) > 0 
    7985 ^^^^^^^^^^^^^^^^^^^^ 
    7986 TypeError: object of type 'NoneType' has no len() 
    7987  
    7988 TypeError: object of type 'NoneType' has no len() 
    7989  
    7990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7991 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    7992 return self._any_displayed_positions and len(self._positions) > 0 
    7993 ^^^^^^^^^^^^^^^^^^^^ 
    7994  
    7995 See log for complete Python traceback. 
    7996  
    7997 Traceback (most recent call last): 
    7998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    7999 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8000 val = col.display_value(item) 
    8001 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8003 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8004 val = self.value(instance) 
    8005 ^^^^^^^^^^^^^^^^^^^^ 
    8006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8007 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8008 return self.data_fetch(instance) 
    8009 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8011 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8012 if s.display and s.atoms.displays.any(): 
    8013 ^^^^^^^^^ 
    8014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8015 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8016 return Model.display.fget(self) 
    8017 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8019 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8020 return self._any_displayed_positions and len(self._positions) > 0 
    8021 ^^^^^^^^^^^^^^^^^^^^ 
    8022 TypeError: object of type 'NoneType' has no len() 
    8023  
    8024 TypeError: object of type 'NoneType' has no len() 
    8025  
    8026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8027 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8028 return self._any_displayed_positions and len(self._positions) > 0 
    8029 ^^^^^^^^^^^^^^^^^^^^ 
    8030  
    8031 See log for complete Python traceback. 
    8032  
    8033 Traceback (most recent call last): 
    8034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8035 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8036 val = col.display_value(item) 
    8037 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8039 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8040 val = self.value(instance) 
    8041 ^^^^^^^^^^^^^^^^^^^^ 
    8042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8043 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8044 return self.data_fetch(instance) 
    8045 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8047 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8048 if s.display and s.atoms.displays.any(): 
    8049 ^^^^^^^^^ 
    8050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8051 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8052 return Model.display.fget(self) 
    8053 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8055 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8056 return self._any_displayed_positions and len(self._positions) > 0 
    8057 ^^^^^^^^^^^^^^^^^^^^ 
    8058 TypeError: object of type 'NoneType' has no len() 
    8059  
    8060 TypeError: object of type 'NoneType' has no len() 
    8061  
    8062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8063 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8064 return self._any_displayed_positions and len(self._positions) > 0 
    8065 ^^^^^^^^^^^^^^^^^^^^ 
    8066  
    8067 See log for complete Python traceback. 
    8068  
    8069 Traceback (most recent call last): 
    8070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8071 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8072 val = col.display_value(item) 
    8073 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8075 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8076 val = self.value(instance) 
    8077 ^^^^^^^^^^^^^^^^^^^^ 
    8078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8079 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8080 return self.data_fetch(instance) 
    8081 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8083 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8084 if s.display and s.atoms.displays.any(): 
    8085 ^^^^^^^^^ 
    8086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8087 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8088 return Model.display.fget(self) 
    8089 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8091 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8092 return self._any_displayed_positions and len(self._positions) > 0 
    8093 ^^^^^^^^^^^^^^^^^^^^ 
    8094 TypeError: object of type 'NoneType' has no len() 
    8095  
    8096 TypeError: object of type 'NoneType' has no len() 
    8097  
    8098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8099 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8100 return self._any_displayed_positions and len(self._positions) > 0 
    8101 ^^^^^^^^^^^^^^^^^^^^ 
    8102  
    8103 See log for complete Python traceback. 
    8104  
    8105 Traceback (most recent call last): 
    8106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8107 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8108 val = col.display_value(item) 
    8109 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8111 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8112 val = self.value(instance) 
    8113 ^^^^^^^^^^^^^^^^^^^^ 
    8114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8115 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8116 return self.data_fetch(instance) 
    8117 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8119 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8120 if s.display and s.atoms.displays.any(): 
    8121 ^^^^^^^^^ 
    8122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8123 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8124 return Model.display.fget(self) 
    8125 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8127 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8128 return self._any_displayed_positions and len(self._positions) > 0 
    8129 ^^^^^^^^^^^^^^^^^^^^ 
    8130 TypeError: object of type 'NoneType' has no len() 
    8131  
    8132 TypeError: object of type 'NoneType' has no len() 
    8133  
    8134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8135 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8136 return self._any_displayed_positions and len(self._positions) > 0 
    8137 ^^^^^^^^^^^^^^^^^^^^ 
    8138  
    8139 See log for complete Python traceback. 
    8140  
    8141 Traceback (most recent call last): 
    8142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8143 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8144 val = col.display_value(item) 
    8145 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8147 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8148 val = self.value(instance) 
    8149 ^^^^^^^^^^^^^^^^^^^^ 
    8150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8151 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8152 return self.data_fetch(instance) 
    8153 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8155 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8156 if s.display and s.atoms.displays.any(): 
    8157 ^^^^^^^^^ 
    8158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8159 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8160 return Model.display.fget(self) 
    8161 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8163 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8164 return self._any_displayed_positions and len(self._positions) > 0 
    8165 ^^^^^^^^^^^^^^^^^^^^ 
    8166 TypeError: object of type 'NoneType' has no len() 
    8167  
    8168 TypeError: object of type 'NoneType' has no len() 
    8169  
    8170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8171 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8172 return self._any_displayed_positions and len(self._positions) > 0 
    8173 ^^^^^^^^^^^^^^^^^^^^ 
    8174  
    8175 See log for complete Python traceback. 
    8176  
    8177 Traceback (most recent call last): 
    8178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8179 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8180 val = col.display_value(item) 
    8181 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8183 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8184 val = self.value(instance) 
    8185 ^^^^^^^^^^^^^^^^^^^^ 
    8186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8187 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8188 return self.data_fetch(instance) 
    8189 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8191 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8192 if s.display and s.atoms.displays.any(): 
    8193 ^^^^^^^^^ 
    8194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8195 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8196 return Model.display.fget(self) 
    8197 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8199 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8200 return self._any_displayed_positions and len(self._positions) > 0 
    8201 ^^^^^^^^^^^^^^^^^^^^ 
    8202 TypeError: object of type 'NoneType' has no len() 
    8203  
    8204 TypeError: object of type 'NoneType' has no len() 
    8205  
    8206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8207 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8208 return self._any_displayed_positions and len(self._positions) > 0 
    8209 ^^^^^^^^^^^^^^^^^^^^ 
    8210  
    8211 See log for complete Python traceback. 
    8212  
    8213 Traceback (most recent call last): 
    8214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8215 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8216 val = col.display_value(item) 
    8217 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8219 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8220 val = self.value(instance) 
    8221 ^^^^^^^^^^^^^^^^^^^^ 
    8222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8223 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8224 return self.data_fetch(instance) 
    8225 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8227 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8228 if s.display and s.atoms.displays.any(): 
    8229 ^^^^^^^^^ 
    8230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8231 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8232 return Model.display.fget(self) 
    8233 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8235 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8236 return self._any_displayed_positions and len(self._positions) > 0 
    8237 ^^^^^^^^^^^^^^^^^^^^ 
    8238 TypeError: object of type 'NoneType' has no len() 
    8239  
    8240 TypeError: object of type 'NoneType' has no len() 
    8241  
    8242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8243 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8244 return self._any_displayed_positions and len(self._positions) > 0 
    8245 ^^^^^^^^^^^^^^^^^^^^ 
    8246  
    8247 See log for complete Python traceback. 
    8248  
    8249 Traceback (most recent call last): 
    8250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8251 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8252 val = col.display_value(item) 
    8253 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8255 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8256 val = self.value(instance) 
    8257 ^^^^^^^^^^^^^^^^^^^^ 
    8258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8259 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8260 return self.data_fetch(instance) 
    8261 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8263 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8264 if s.display and s.atoms.displays.any(): 
    8265 ^^^^^^^^^ 
    8266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8267 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8268 return Model.display.fget(self) 
    8269 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8271 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8272 return self._any_displayed_positions and len(self._positions) > 0 
    8273 ^^^^^^^^^^^^^^^^^^^^ 
    8274 TypeError: object of type 'NoneType' has no len() 
    8275  
    8276 TypeError: object of type 'NoneType' has no len() 
    8277  
    8278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8279 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8280 return self._any_displayed_positions and len(self._positions) > 0 
    8281 ^^^^^^^^^^^^^^^^^^^^ 
    8282  
    8283 See log for complete Python traceback. 
    8284  
    8285 Traceback (most recent call last): 
    8286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8287 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8288 val = col.display_value(item) 
    8289 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8291 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8292 val = self.value(instance) 
    8293 ^^^^^^^^^^^^^^^^^^^^ 
    8294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8295 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8296 return self.data_fetch(instance) 
    8297 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8299 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8300 if s.display and s.atoms.displays.any(): 
    8301 ^^^^^^^^^ 
    8302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8303 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8304 return Model.display.fget(self) 
    8305 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8307 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8308 return self._any_displayed_positions and len(self._positions) > 0 
    8309 ^^^^^^^^^^^^^^^^^^^^ 
    8310 TypeError: object of type 'NoneType' has no len() 
    8311  
    8312 TypeError: object of type 'NoneType' has no len() 
    8313  
    8314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8315 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8316 return self._any_displayed_positions and len(self._positions) > 0 
    8317 ^^^^^^^^^^^^^^^^^^^^ 
    8318  
    8319 See log for complete Python traceback. 
    8320  
    8321 Traceback (most recent call last): 
    8322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8323 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8324 val = col.display_value(item) 
    8325 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8327 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8328 val = self.value(instance) 
    8329 ^^^^^^^^^^^^^^^^^^^^ 
    8330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8331 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8332 return self.data_fetch(instance) 
    8333 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8335 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8336 if s.display and s.atoms.displays.any(): 
    8337 ^^^^^^^^^ 
    8338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8339 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8340 return Model.display.fget(self) 
    8341 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8343 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8344 return self._any_displayed_positions and len(self._positions) > 0 
    8345 ^^^^^^^^^^^^^^^^^^^^ 
    8346 TypeError: object of type 'NoneType' has no len() 
    8347  
    8348 TypeError: object of type 'NoneType' has no len() 
    8349  
    8350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8351 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8352 return self._any_displayed_positions and len(self._positions) > 0 
    8353 ^^^^^^^^^^^^^^^^^^^^ 
    8354  
    8355 See log for complete Python traceback. 
    8356  
    8357 Traceback (most recent call last): 
    8358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8359 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8360 val = col.display_value(item) 
    8361 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8363 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8364 val = self.value(instance) 
    8365 ^^^^^^^^^^^^^^^^^^^^ 
    8366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8367 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8368 return self.data_fetch(instance) 
    8369 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8371 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8372 if s.display and s.atoms.displays.any(): 
    8373 ^^^^^^^^^ 
    8374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8375 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8376 return Model.display.fget(self) 
    8377 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8379 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8380 return self._any_displayed_positions and len(self._positions) > 0 
    8381 ^^^^^^^^^^^^^^^^^^^^ 
    8382 TypeError: object of type 'NoneType' has no len() 
    8383  
    8384 TypeError: object of type 'NoneType' has no len() 
    8385  
    8386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8387 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8388 return self._any_displayed_positions and len(self._positions) > 0 
    8389 ^^^^^^^^^^^^^^^^^^^^ 
    8390  
    8391 See log for complete Python traceback. 
    8392  
    8393 Traceback (most recent call last): 
    8394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8395 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8396 val = col.display_value(item) 
    8397 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8399 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8400 val = self.value(instance) 
    8401 ^^^^^^^^^^^^^^^^^^^^ 
    8402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8403 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8404 return self.data_fetch(instance) 
    8405 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8407 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8408 if s.display and s.atoms.displays.any(): 
    8409 ^^^^^^^^^ 
    8410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8411 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8412 return Model.display.fget(self) 
    8413 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8415 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8416 return self._any_displayed_positions and len(self._positions) > 0 
    8417 ^^^^^^^^^^^^^^^^^^^^ 
    8418 TypeError: object of type 'NoneType' has no len() 
    8419  
    8420 TypeError: object of type 'NoneType' has no len() 
    8421  
    8422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8423 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8424 return self._any_displayed_positions and len(self._positions) > 0 
    8425 ^^^^^^^^^^^^^^^^^^^^ 
    8426  
    8427 See log for complete Python traceback. 
    8428  
    8429 Traceback (most recent call last): 
    8430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8431 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8432 val = col.display_value(item) 
    8433 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8435 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8436 val = self.value(instance) 
    8437 ^^^^^^^^^^^^^^^^^^^^ 
    8438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8439 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8440 return self.data_fetch(instance) 
    8441 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8443 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8444 if s.display and s.atoms.displays.any(): 
    8445 ^^^^^^^^^ 
    8446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8447 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8448 return Model.display.fget(self) 
    8449 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8451 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8452 return self._any_displayed_positions and len(self._positions) > 0 
    8453 ^^^^^^^^^^^^^^^^^^^^ 
    8454 TypeError: object of type 'NoneType' has no len() 
    8455  
    8456 TypeError: object of type 'NoneType' has no len() 
    8457  
    8458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8459 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8460 return self._any_displayed_positions and len(self._positions) > 0 
    8461 ^^^^^^^^^^^^^^^^^^^^ 
    8462  
    8463 See log for complete Python traceback. 
    8464  
    8465 Traceback (most recent call last): 
    8466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8467 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8468 val = col.display_value(item) 
    8469 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8471 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8472 val = self.value(instance) 
    8473 ^^^^^^^^^^^^^^^^^^^^ 
    8474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8475 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8476 return self.data_fetch(instance) 
    8477 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8479 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8480 if s.display and s.atoms.displays.any(): 
    8481 ^^^^^^^^^ 
    8482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8483 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8484 return Model.display.fget(self) 
    8485 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8487 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8488 return self._any_displayed_positions and len(self._positions) > 0 
    8489 ^^^^^^^^^^^^^^^^^^^^ 
    8490 TypeError: object of type 'NoneType' has no len() 
    8491  
    8492 TypeError: object of type 'NoneType' has no len() 
    8493  
    8494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8495 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8496 return self._any_displayed_positions and len(self._positions) > 0 
    8497 ^^^^^^^^^^^^^^^^^^^^ 
    8498  
    8499 See log for complete Python traceback. 
    8500  
    8501 Traceback (most recent call last): 
    8502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8503 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8504 val = col.display_value(item) 
    8505 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8507 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8508 val = self.value(instance) 
    8509 ^^^^^^^^^^^^^^^^^^^^ 
    8510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8511 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8512 return self.data_fetch(instance) 
    8513 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8515 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8516 if s.display and s.atoms.displays.any(): 
    8517 ^^^^^^^^^ 
    8518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8519 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8520 return Model.display.fget(self) 
    8521 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8523 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8524 return self._any_displayed_positions and len(self._positions) > 0 
    8525 ^^^^^^^^^^^^^^^^^^^^ 
    8526 TypeError: object of type 'NoneType' has no len() 
    8527  
    8528 TypeError: object of type 'NoneType' has no len() 
    8529  
    8530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8531 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8532 return self._any_displayed_positions and len(self._positions) > 0 
    8533 ^^^^^^^^^^^^^^^^^^^^ 
    8534  
    8535 See log for complete Python traceback. 
    8536  
    8537 Traceback (most recent call last): 
    8538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8539 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8540 val = col.display_value(item) 
    8541 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8543 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8544 val = self.value(instance) 
    8545 ^^^^^^^^^^^^^^^^^^^^ 
    8546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8547 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8548 return self.data_fetch(instance) 
    8549 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8551 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8552 if s.display and s.atoms.displays.any(): 
    8553 ^^^^^^^^^ 
    8554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8555 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8556 return Model.display.fget(self) 
    8557 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8559 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8560 return self._any_displayed_positions and len(self._positions) > 0 
    8561 ^^^^^^^^^^^^^^^^^^^^ 
    8562 TypeError: object of type 'NoneType' has no len() 
    8563  
    8564 TypeError: object of type 'NoneType' has no len() 
    8565  
    8566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8567 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8568 return self._any_displayed_positions and len(self._positions) > 0 
    8569 ^^^^^^^^^^^^^^^^^^^^ 
    8570  
    8571 See log for complete Python traceback. 
    8572  
    8573 Traceback (most recent call last): 
    8574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8575 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8576 val = col.display_value(item) 
    8577 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8579 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8580 val = self.value(instance) 
    8581 ^^^^^^^^^^^^^^^^^^^^ 
    8582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8583 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8584 return self.data_fetch(instance) 
    8585 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8587 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8588 if s.display and s.atoms.displays.any(): 
    8589 ^^^^^^^^^ 
    8590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8591 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8592 return Model.display.fget(self) 
    8593 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8595 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8596 return self._any_displayed_positions and len(self._positions) > 0 
    8597 ^^^^^^^^^^^^^^^^^^^^ 
    8598 TypeError: object of type 'NoneType' has no len() 
    8599  
    8600 TypeError: object of type 'NoneType' has no len() 
    8601  
    8602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8603 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8604 return self._any_displayed_positions and len(self._positions) > 0 
    8605 ^^^^^^^^^^^^^^^^^^^^ 
    8606  
    8607 See log for complete Python traceback. 
    8608  
    8609 Traceback (most recent call last): 
    8610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8611 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8612 val = col.display_value(item) 
    8613 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8615 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8616 val = self.value(instance) 
    8617 ^^^^^^^^^^^^^^^^^^^^ 
    8618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8619 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8620 return self.data_fetch(instance) 
    8621 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8623 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8624 if s.display and s.atoms.displays.any(): 
    8625 ^^^^^^^^^ 
    8626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8627 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8628 return Model.display.fget(self) 
    8629 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8631 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8632 return self._any_displayed_positions and len(self._positions) > 0 
    8633 ^^^^^^^^^^^^^^^^^^^^ 
    8634 TypeError: object of type 'NoneType' has no len() 
    8635  
    8636 TypeError: object of type 'NoneType' has no len() 
    8637  
    8638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8639 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8640 return self._any_displayed_positions and len(self._positions) > 0 
    8641 ^^^^^^^^^^^^^^^^^^^^ 
    8642  
    8643 See log for complete Python traceback. 
    8644  
    8645 Traceback (most recent call last): 
    8646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8647 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8648 val = col.display_value(item) 
    8649 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8651 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8652 val = self.value(instance) 
    8653 ^^^^^^^^^^^^^^^^^^^^ 
    8654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8655 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8656 return self.data_fetch(instance) 
    8657 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8659 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8660 if s.display and s.atoms.displays.any(): 
    8661 ^^^^^^^^^ 
    8662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8663 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8664 return Model.display.fget(self) 
    8665 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8667 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8668 return self._any_displayed_positions and len(self._positions) > 0 
    8669 ^^^^^^^^^^^^^^^^^^^^ 
    8670 TypeError: object of type 'NoneType' has no len() 
    8671  
    8672 TypeError: object of type 'NoneType' has no len() 
    8673  
    8674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8675 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8676 return self._any_displayed_positions and len(self._positions) > 0 
    8677 ^^^^^^^^^^^^^^^^^^^^ 
    8678  
    8679 See log for complete Python traceback. 
    8680  
    8681 Traceback (most recent call last): 
    8682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8683 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8684 val = col.display_value(item) 
    8685 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8687 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8688 val = self.value(instance) 
    8689 ^^^^^^^^^^^^^^^^^^^^ 
    8690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8691 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8692 return self.data_fetch(instance) 
    8693 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8695 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8696 if s.display and s.atoms.displays.any(): 
    8697 ^^^^^^^^^ 
    8698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8699 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8700 return Model.display.fget(self) 
    8701 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8703 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8704 return self._any_displayed_positions and len(self._positions) > 0 
    8705 ^^^^^^^^^^^^^^^^^^^^ 
    8706 TypeError: object of type 'NoneType' has no len() 
    8707  
    8708 TypeError: object of type 'NoneType' has no len() 
    8709  
    8710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8711 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8712 return self._any_displayed_positions and len(self._positions) > 0 
    8713 ^^^^^^^^^^^^^^^^^^^^ 
    8714  
    8715 See log for complete Python traceback. 
    8716  
    8717 Traceback (most recent call last): 
    8718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8719 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8720 val = col.display_value(item) 
    8721 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8723 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8724 val = self.value(instance) 
    8725 ^^^^^^^^^^^^^^^^^^^^ 
    8726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8727 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8728 return self.data_fetch(instance) 
    8729 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8731 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8732 if s.display and s.atoms.displays.any(): 
    8733 ^^^^^^^^^ 
    8734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8735 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8736 return Model.display.fget(self) 
    8737 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8739 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8740 return self._any_displayed_positions and len(self._positions) > 0 
    8741 ^^^^^^^^^^^^^^^^^^^^ 
    8742 TypeError: object of type 'NoneType' has no len() 
    8743  
    8744 TypeError: object of type 'NoneType' has no len() 
    8745  
    8746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8747 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8748 return self._any_displayed_positions and len(self._positions) > 0 
    8749 ^^^^^^^^^^^^^^^^^^^^ 
    8750  
    8751 See log for complete Python traceback. 
    8752  
    8753 Traceback (most recent call last): 
    8754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8755 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8756 val = col.display_value(item) 
    8757 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8759 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8760 val = self.value(instance) 
    8761 ^^^^^^^^^^^^^^^^^^^^ 
    8762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8763 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8764 return self.data_fetch(instance) 
    8765 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8767 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8768 if s.display and s.atoms.displays.any(): 
    8769 ^^^^^^^^^ 
    8770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8771 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8772 return Model.display.fget(self) 
    8773 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8775 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8776 return self._any_displayed_positions and len(self._positions) > 0 
    8777 ^^^^^^^^^^^^^^^^^^^^ 
    8778 TypeError: object of type 'NoneType' has no len() 
    8779  
    8780 TypeError: object of type 'NoneType' has no len() 
    8781  
    8782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8783 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8784 return self._any_displayed_positions and len(self._positions) > 0 
    8785 ^^^^^^^^^^^^^^^^^^^^ 
    8786  
    8787 See log for complete Python traceback. 
    8788  
    8789 Traceback (most recent call last): 
    8790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8791 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8792 val = col.display_value(item) 
    8793 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8795 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8796 val = self.value(instance) 
    8797 ^^^^^^^^^^^^^^^^^^^^ 
    8798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8799 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8800 return self.data_fetch(instance) 
    8801 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8803 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8804 if s.display and s.atoms.displays.any(): 
    8805 ^^^^^^^^^ 
    8806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8807 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8808 return Model.display.fget(self) 
    8809 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8811 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8812 return self._any_displayed_positions and len(self._positions) > 0 
    8813 ^^^^^^^^^^^^^^^^^^^^ 
    8814 TypeError: object of type 'NoneType' has no len() 
    8815  
    8816 TypeError: object of type 'NoneType' has no len() 
    8817  
    8818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8819 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8820 return self._any_displayed_positions and len(self._positions) > 0 
    8821 ^^^^^^^^^^^^^^^^^^^^ 
    8822  
    8823 See log for complete Python traceback. 
    8824  
    8825 Traceback (most recent call last): 
    8826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8827 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8828 val = col.display_value(item) 
    8829 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8831 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8832 val = self.value(instance) 
    8833 ^^^^^^^^^^^^^^^^^^^^ 
    8834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8835 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8836 return self.data_fetch(instance) 
    8837 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8839 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8840 if s.display and s.atoms.displays.any(): 
    8841 ^^^^^^^^^ 
    8842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8843 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8844 return Model.display.fget(self) 
    8845 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8847 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8848 return self._any_displayed_positions and len(self._positions) > 0 
    8849 ^^^^^^^^^^^^^^^^^^^^ 
    8850 TypeError: object of type 'NoneType' has no len() 
    8851  
    8852 TypeError: object of type 'NoneType' has no len() 
    8853  
    8854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8855 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8856 return self._any_displayed_positions and len(self._positions) > 0 
    8857 ^^^^^^^^^^^^^^^^^^^^ 
    8858  
    8859 See log for complete Python traceback. 
    8860  
    8861 Traceback (most recent call last): 
    8862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8863 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8864 val = col.display_value(item) 
    8865 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8867 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8868 val = self.value(instance) 
    8869 ^^^^^^^^^^^^^^^^^^^^ 
    8870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8871 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8872 return self.data_fetch(instance) 
    8873 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8875 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8876 if s.display and s.atoms.displays.any(): 
    8877 ^^^^^^^^^ 
    8878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8879 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8880 return Model.display.fget(self) 
    8881 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8883 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8884 return self._any_displayed_positions and len(self._positions) > 0 
    8885 ^^^^^^^^^^^^^^^^^^^^ 
    8886 TypeError: object of type 'NoneType' has no len() 
    8887  
    8888 TypeError: object of type 'NoneType' has no len() 
    8889  
    8890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8891 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8892 return self._any_displayed_positions and len(self._positions) > 0 
    8893 ^^^^^^^^^^^^^^^^^^^^ 
    8894  
    8895 See log for complete Python traceback. 
    8896  
    8897 Traceback (most recent call last): 
    8898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8899 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8900 val = col.display_value(item) 
    8901 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8903 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8904 val = self.value(instance) 
    8905 ^^^^^^^^^^^^^^^^^^^^ 
    8906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8907 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8908 return self.data_fetch(instance) 
    8909 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8911 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8912 if s.display and s.atoms.displays.any(): 
    8913 ^^^^^^^^^ 
    8914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8915 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8916 return Model.display.fget(self) 
    8917 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8919 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8920 return self._any_displayed_positions and len(self._positions) > 0 
    8921 ^^^^^^^^^^^^^^^^^^^^ 
    8922 TypeError: object of type 'NoneType' has no len() 
    8923  
    8924 TypeError: object of type 'NoneType' has no len() 
    8925  
    8926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8927 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8928 return self._any_displayed_positions and len(self._positions) > 0 
    8929 ^^^^^^^^^^^^^^^^^^^^ 
    8930  
    8931 See log for complete Python traceback. 
    8932  
    8933 Traceback (most recent call last): 
    8934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8935 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8936 val = col.display_value(item) 
    8937 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8939 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8940 val = self.value(instance) 
    8941 ^^^^^^^^^^^^^^^^^^^^ 
    8942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8943 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8944 return self.data_fetch(instance) 
    8945 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8947 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8948 if s.display and s.atoms.displays.any(): 
    8949 ^^^^^^^^^ 
    8950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8951 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8952 return Model.display.fget(self) 
    8953 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8955 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8956 return self._any_displayed_positions and len(self._positions) > 0 
    8957 ^^^^^^^^^^^^^^^^^^^^ 
    8958 TypeError: object of type 'NoneType' has no len() 
    8959  
    8960 TypeError: object of type 'NoneType' has no len() 
    8961  
    8962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8963 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8964 return self._any_displayed_positions and len(self._positions) > 0 
    8965 ^^^^^^^^^^^^^^^^^^^^ 
    8966  
    8967 See log for complete Python traceback. 
    8968  
    8969 Traceback (most recent call last): 
    8970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8971 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    8972 val = col.display_value(item) 
    8973 ^^^^^^^^^^^^^^^^^^^^^^^ 
    8974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8975 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    8976 val = self.value(instance) 
    8977 ^^^^^^^^^^^^^^^^^^^^ 
    8978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8979 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    8980 return self.data_fetch(instance) 
    8981 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    8982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8983 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    8984 if s.display and s.atoms.displays.any(): 
    8985 ^^^^^^^^^ 
    8986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8987 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    8988 return Model.display.fget(self) 
    8989 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    8990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8991 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    8992 return self._any_displayed_positions and len(self._positions) > 0 
    8993 ^^^^^^^^^^^^^^^^^^^^ 
    8994 TypeError: object of type 'NoneType' has no len() 
    8995  
    8996 TypeError: object of type 'NoneType' has no len() 
    8997  
    8998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    8999 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9000 return self._any_displayed_positions and len(self._positions) > 0 
    9001 ^^^^^^^^^^^^^^^^^^^^ 
    9002  
    9003 See log for complete Python traceback. 
    9004  
    9005 Traceback (most recent call last): 
    9006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9007 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9008 val = col.display_value(item) 
    9009 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9011 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9012 val = self.value(instance) 
    9013 ^^^^^^^^^^^^^^^^^^^^ 
    9014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9015 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9016 return self.data_fetch(instance) 
    9017 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9019 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9020 if s.display and s.atoms.displays.any(): 
    9021 ^^^^^^^^^ 
    9022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9023 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9024 return Model.display.fget(self) 
    9025 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9027 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9028 return self._any_displayed_positions and len(self._positions) > 0 
    9029 ^^^^^^^^^^^^^^^^^^^^ 
    9030 TypeError: object of type 'NoneType' has no len() 
    9031  
    9032 TypeError: object of type 'NoneType' has no len() 
    9033  
    9034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9035 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9036 return self._any_displayed_positions and len(self._positions) > 0 
    9037 ^^^^^^^^^^^^^^^^^^^^ 
    9038  
    9039 See log for complete Python traceback. 
    9040  
    9041 Traceback (most recent call last): 
    9042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9043 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9044 val = col.display_value(item) 
    9045 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9047 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9048 val = self.value(instance) 
    9049 ^^^^^^^^^^^^^^^^^^^^ 
    9050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9051 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9052 return self.data_fetch(instance) 
    9053 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9055 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9056 if s.display and s.atoms.displays.any(): 
    9057 ^^^^^^^^^ 
    9058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9059 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9060 return Model.display.fget(self) 
    9061 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9063 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9064 return self._any_displayed_positions and len(self._positions) > 0 
    9065 ^^^^^^^^^^^^^^^^^^^^ 
    9066 TypeError: object of type 'NoneType' has no len() 
    9067  
    9068 TypeError: object of type 'NoneType' has no len() 
    9069  
    9070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9071 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9072 return self._any_displayed_positions and len(self._positions) > 0 
    9073 ^^^^^^^^^^^^^^^^^^^^ 
    9074  
    9075 See log for complete Python traceback. 
    9076  
    9077 Traceback (most recent call last): 
    9078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9079 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9080 val = col.display_value(item) 
    9081 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9083 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9084 val = self.value(instance) 
    9085 ^^^^^^^^^^^^^^^^^^^^ 
    9086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9087 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9088 return self.data_fetch(instance) 
    9089 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9091 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9092 if s.display and s.atoms.displays.any(): 
    9093 ^^^^^^^^^ 
    9094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9095 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9096 return Model.display.fget(self) 
    9097 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9099 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9100 return self._any_displayed_positions and len(self._positions) > 0 
    9101 ^^^^^^^^^^^^^^^^^^^^ 
    9102 TypeError: object of type 'NoneType' has no len() 
    9103  
    9104 TypeError: object of type 'NoneType' has no len() 
    9105  
    9106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9107 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9108 return self._any_displayed_positions and len(self._positions) > 0 
    9109 ^^^^^^^^^^^^^^^^^^^^ 
    9110  
    9111 See log for complete Python traceback. 
    9112  
    9113 Traceback (most recent call last): 
    9114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9115 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9116 val = col.display_value(item) 
    9117 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9119 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9120 val = self.value(instance) 
    9121 ^^^^^^^^^^^^^^^^^^^^ 
    9122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9123 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9124 return self.data_fetch(instance) 
    9125 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9127 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9128 if s.display and s.atoms.displays.any(): 
    9129 ^^^^^^^^^ 
    9130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9131 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9132 return Model.display.fget(self) 
    9133 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9135 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9136 return self._any_displayed_positions and len(self._positions) > 0 
    9137 ^^^^^^^^^^^^^^^^^^^^ 
    9138 TypeError: object of type 'NoneType' has no len() 
    9139  
    9140 TypeError: object of type 'NoneType' has no len() 
    9141  
    9142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9143 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9144 return self._any_displayed_positions and len(self._positions) > 0 
    9145 ^^^^^^^^^^^^^^^^^^^^ 
    9146  
    9147 See log for complete Python traceback. 
    9148  
    9149 Traceback (most recent call last): 
    9150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9151 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9152 val = col.display_value(item) 
    9153 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9155 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9156 val = self.value(instance) 
    9157 ^^^^^^^^^^^^^^^^^^^^ 
    9158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9159 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9160 return self.data_fetch(instance) 
    9161 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9163 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9164 if s.display and s.atoms.displays.any(): 
    9165 ^^^^^^^^^ 
    9166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9167 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9168 return Model.display.fget(self) 
    9169 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9171 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9172 return self._any_displayed_positions and len(self._positions) > 0 
    9173 ^^^^^^^^^^^^^^^^^^^^ 
    9174 TypeError: object of type 'NoneType' has no len() 
    9175  
    9176 TypeError: object of type 'NoneType' has no len() 
    9177  
    9178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9179 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9180 return self._any_displayed_positions and len(self._positions) > 0 
    9181 ^^^^^^^^^^^^^^^^^^^^ 
    9182  
    9183 See log for complete Python traceback. 
    9184  
    9185 Traceback (most recent call last): 
    9186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9187 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9188 val = col.display_value(item) 
    9189 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9191 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9192 val = self.value(instance) 
    9193 ^^^^^^^^^^^^^^^^^^^^ 
    9194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9195 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9196 return self.data_fetch(instance) 
    9197 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9199 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9200 if s.display and s.atoms.displays.any(): 
    9201 ^^^^^^^^^ 
    9202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9203 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9204 return Model.display.fget(self) 
    9205 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9207 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9208 return self._any_displayed_positions and len(self._positions) > 0 
    9209 ^^^^^^^^^^^^^^^^^^^^ 
    9210 TypeError: object of type 'NoneType' has no len() 
    9211  
    9212 TypeError: object of type 'NoneType' has no len() 
    9213  
    9214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9215 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9216 return self._any_displayed_positions and len(self._positions) > 0 
    9217 ^^^^^^^^^^^^^^^^^^^^ 
    9218  
    9219 See log for complete Python traceback. 
    9220  
    9221 Traceback (most recent call last): 
    9222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9223 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9224 val = col.display_value(item) 
    9225 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9227 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9228 val = self.value(instance) 
    9229 ^^^^^^^^^^^^^^^^^^^^ 
    9230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9231 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9232 return self.data_fetch(instance) 
    9233 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9235 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9236 if s.display and s.atoms.displays.any(): 
    9237 ^^^^^^^^^ 
    9238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9239 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9240 return Model.display.fget(self) 
    9241 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9243 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9244 return self._any_displayed_positions and len(self._positions) > 0 
    9245 ^^^^^^^^^^^^^^^^^^^^ 
    9246 TypeError: object of type 'NoneType' has no len() 
    9247  
    9248 TypeError: object of type 'NoneType' has no len() 
    9249  
    9250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9251 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9252 return self._any_displayed_positions and len(self._positions) > 0 
    9253 ^^^^^^^^^^^^^^^^^^^^ 
    9254  
    9255 See log for complete Python traceback. 
    9256  
    9257 Traceback (most recent call last): 
    9258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9259 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9260 val = col.display_value(item) 
    9261 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9263 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9264 val = self.value(instance) 
    9265 ^^^^^^^^^^^^^^^^^^^^ 
    9266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9267 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9268 return self.data_fetch(instance) 
    9269 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9271 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9272 if s.display and s.atoms.displays.any(): 
    9273 ^^^^^^^^^ 
    9274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9275 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9276 return Model.display.fget(self) 
    9277 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9279 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9280 return self._any_displayed_positions and len(self._positions) > 0 
    9281 ^^^^^^^^^^^^^^^^^^^^ 
    9282 TypeError: object of type 'NoneType' has no len() 
    9283  
    9284 TypeError: object of type 'NoneType' has no len() 
    9285  
    9286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9287 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9288 return self._any_displayed_positions and len(self._positions) > 0 
    9289 ^^^^^^^^^^^^^^^^^^^^ 
    9290  
    9291 See log for complete Python traceback. 
    9292  
    9293 Traceback (most recent call last): 
    9294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9295 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9296 val = col.display_value(item) 
    9297 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9299 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9300 val = self.value(instance) 
    9301 ^^^^^^^^^^^^^^^^^^^^ 
    9302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9303 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9304 return self.data_fetch(instance) 
    9305 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9307 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9308 if s.display and s.atoms.displays.any(): 
    9309 ^^^^^^^^^ 
    9310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9311 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9312 return Model.display.fget(self) 
    9313 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9315 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9316 return self._any_displayed_positions and len(self._positions) > 0 
    9317 ^^^^^^^^^^^^^^^^^^^^ 
    9318 TypeError: object of type 'NoneType' has no len() 
    9319  
    9320 TypeError: object of type 'NoneType' has no len() 
    9321  
    9322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9323 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9324 return self._any_displayed_positions and len(self._positions) > 0 
    9325 ^^^^^^^^^^^^^^^^^^^^ 
    9326  
    9327 See log for complete Python traceback. 
    9328  
    9329 Traceback (most recent call last): 
    9330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9331 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9332 val = col.display_value(item) 
    9333 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9335 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9336 val = self.value(instance) 
    9337 ^^^^^^^^^^^^^^^^^^^^ 
    9338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9339 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9340 return self.data_fetch(instance) 
    9341 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9343 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9344 if s.display and s.atoms.displays.any(): 
    9345 ^^^^^^^^^ 
    9346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9347 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9348 return Model.display.fget(self) 
    9349 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9351 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9352 return self._any_displayed_positions and len(self._positions) > 0 
    9353 ^^^^^^^^^^^^^^^^^^^^ 
    9354 TypeError: object of type 'NoneType' has no len() 
    9355  
    9356 TypeError: object of type 'NoneType' has no len() 
    9357  
    9358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9359 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9360 return self._any_displayed_positions and len(self._positions) > 0 
    9361 ^^^^^^^^^^^^^^^^^^^^ 
    9362  
    9363 See log for complete Python traceback. 
    9364  
    9365 Traceback (most recent call last): 
    9366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9367 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9368 val = col.display_value(item) 
    9369 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9371 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9372 val = self.value(instance) 
    9373 ^^^^^^^^^^^^^^^^^^^^ 
    9374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9375 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9376 return self.data_fetch(instance) 
    9377 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9379 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9380 if s.display and s.atoms.displays.any(): 
    9381 ^^^^^^^^^ 
    9382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9383 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9384 return Model.display.fget(self) 
    9385 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9387 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9388 return self._any_displayed_positions and len(self._positions) > 0 
    9389 ^^^^^^^^^^^^^^^^^^^^ 
    9390 TypeError: object of type 'NoneType' has no len() 
    9391  
    9392 TypeError: object of type 'NoneType' has no len() 
    9393  
    9394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9395 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9396 return self._any_displayed_positions and len(self._positions) > 0 
    9397 ^^^^^^^^^^^^^^^^^^^^ 
    9398  
    9399 See log for complete Python traceback. 
    9400  
    9401 Traceback (most recent call last): 
    9402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9403 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9404 val = col.display_value(item) 
    9405 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9407 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9408 val = self.value(instance) 
    9409 ^^^^^^^^^^^^^^^^^^^^ 
    9410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9411 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9412 return self.data_fetch(instance) 
    9413 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9415 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9416 if s.display and s.atoms.displays.any(): 
    9417 ^^^^^^^^^ 
    9418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9419 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9420 return Model.display.fget(self) 
    9421 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9423 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9424 return self._any_displayed_positions and len(self._positions) > 0 
    9425 ^^^^^^^^^^^^^^^^^^^^ 
    9426 TypeError: object of type 'NoneType' has no len() 
    9427  
    9428 TypeError: object of type 'NoneType' has no len() 
    9429  
    9430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9431 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9432 return self._any_displayed_positions and len(self._positions) > 0 
    9433 ^^^^^^^^^^^^^^^^^^^^ 
    9434  
    9435 See log for complete Python traceback. 
    9436  
    9437 Traceback (most recent call last): 
    9438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9439 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9440 val = col.display_value(item) 
    9441 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9443 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9444 val = self.value(instance) 
    9445 ^^^^^^^^^^^^^^^^^^^^ 
    9446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9447 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9448 return self.data_fetch(instance) 
    9449 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9451 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9452 if s.display and s.atoms.displays.any(): 
    9453 ^^^^^^^^^ 
    9454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9455 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9456 return Model.display.fget(self) 
    9457 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9459 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9460 return self._any_displayed_positions and len(self._positions) > 0 
    9461 ^^^^^^^^^^^^^^^^^^^^ 
    9462 TypeError: object of type 'NoneType' has no len() 
    9463  
    9464 TypeError: object of type 'NoneType' has no len() 
    9465  
    9466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9467 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9468 return self._any_displayed_positions and len(self._positions) > 0 
    9469 ^^^^^^^^^^^^^^^^^^^^ 
    9470  
    9471 See log for complete Python traceback. 
    9472  
    9473 Traceback (most recent call last): 
    9474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9475 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9476 val = col.display_value(item) 
    9477 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9479 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9480 val = self.value(instance) 
    9481 ^^^^^^^^^^^^^^^^^^^^ 
    9482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9483 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9484 return self.data_fetch(instance) 
    9485 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9487 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9488 if s.display and s.atoms.displays.any(): 
    9489 ^^^^^^^^^ 
    9490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9491 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9492 return Model.display.fget(self) 
    9493 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9495 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9496 return self._any_displayed_positions and len(self._positions) > 0 
    9497 ^^^^^^^^^^^^^^^^^^^^ 
    9498 TypeError: object of type 'NoneType' has no len() 
    9499  
    9500 TypeError: object of type 'NoneType' has no len() 
    9501  
    9502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9503 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9504 return self._any_displayed_positions and len(self._positions) > 0 
    9505 ^^^^^^^^^^^^^^^^^^^^ 
    9506  
    9507 See log for complete Python traceback. 
    9508  
    9509 Traceback (most recent call last): 
    9510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9511 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9512 val = col.display_value(item) 
    9513 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9515 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9516 val = self.value(instance) 
    9517 ^^^^^^^^^^^^^^^^^^^^ 
    9518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9519 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9520 return self.data_fetch(instance) 
    9521 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9523 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9524 if s.display and s.atoms.displays.any(): 
    9525 ^^^^^^^^^ 
    9526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9527 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9528 return Model.display.fget(self) 
    9529 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9531 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9532 return self._any_displayed_positions and len(self._positions) > 0 
    9533 ^^^^^^^^^^^^^^^^^^^^ 
    9534 TypeError: object of type 'NoneType' has no len() 
    9535  
    9536 TypeError: object of type 'NoneType' has no len() 
    9537  
    9538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9539 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9540 return self._any_displayed_positions and len(self._positions) > 0 
    9541 ^^^^^^^^^^^^^^^^^^^^ 
    9542  
    9543 See log for complete Python traceback. 
    9544  
    9545 Traceback (most recent call last): 
    9546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9547 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9548 val = col.display_value(item) 
    9549 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9551 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9552 val = self.value(instance) 
    9553 ^^^^^^^^^^^^^^^^^^^^ 
    9554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9555 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9556 return self.data_fetch(instance) 
    9557 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9559 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9560 if s.display and s.atoms.displays.any(): 
    9561 ^^^^^^^^^ 
    9562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9563 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9564 return Model.display.fget(self) 
    9565 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9567 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9568 return self._any_displayed_positions and len(self._positions) > 0 
    9569 ^^^^^^^^^^^^^^^^^^^^ 
    9570 TypeError: object of type 'NoneType' has no len() 
    9571  
    9572 TypeError: object of type 'NoneType' has no len() 
    9573  
    9574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9575 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9576 return self._any_displayed_positions and len(self._positions) > 0 
    9577 ^^^^^^^^^^^^^^^^^^^^ 
    9578  
    9579 See log for complete Python traceback. 
    9580  
    9581 Traceback (most recent call last): 
    9582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9583 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9584 val = col.display_value(item) 
    9585 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9587 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9588 val = self.value(instance) 
    9589 ^^^^^^^^^^^^^^^^^^^^ 
    9590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9591 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9592 return self.data_fetch(instance) 
    9593 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9595 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9596 if s.display and s.atoms.displays.any(): 
    9597 ^^^^^^^^^ 
    9598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9599 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9600 return Model.display.fget(self) 
    9601 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9603 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9604 return self._any_displayed_positions and len(self._positions) > 0 
    9605 ^^^^^^^^^^^^^^^^^^^^ 
    9606 TypeError: object of type 'NoneType' has no len() 
    9607  
    9608 TypeError: object of type 'NoneType' has no len() 
    9609  
    9610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9611 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9612 return self._any_displayed_positions and len(self._positions) > 0 
    9613 ^^^^^^^^^^^^^^^^^^^^ 
    9614  
    9615 See log for complete Python traceback. 
    9616  
    9617 Traceback (most recent call last): 
    9618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9619 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9620 val = col.display_value(item) 
    9621 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9623 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9624 val = self.value(instance) 
    9625 ^^^^^^^^^^^^^^^^^^^^ 
    9626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9627 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9628 return self.data_fetch(instance) 
    9629 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9631 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9632 if s.display and s.atoms.displays.any(): 
    9633 ^^^^^^^^^ 
    9634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9635 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9636 return Model.display.fget(self) 
    9637 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9639 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9640 return self._any_displayed_positions and len(self._positions) > 0 
    9641 ^^^^^^^^^^^^^^^^^^^^ 
    9642 TypeError: object of type 'NoneType' has no len() 
    9643  
    9644 TypeError: object of type 'NoneType' has no len() 
    9645  
    9646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9647 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9648 return self._any_displayed_positions and len(self._positions) > 0 
    9649 ^^^^^^^^^^^^^^^^^^^^ 
    9650  
    9651 See log for complete Python traceback. 
    9652  
    9653 Traceback (most recent call last): 
    9654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9655 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9656 val = col.display_value(item) 
    9657 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9659 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9660 val = self.value(instance) 
    9661 ^^^^^^^^^^^^^^^^^^^^ 
    9662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9663 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9664 return self.data_fetch(instance) 
    9665 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9667 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9668 if s.display and s.atoms.displays.any(): 
    9669 ^^^^^^^^^ 
    9670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9671 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9672 return Model.display.fget(self) 
    9673 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9675 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9676 return self._any_displayed_positions and len(self._positions) > 0 
    9677 ^^^^^^^^^^^^^^^^^^^^ 
    9678 TypeError: object of type 'NoneType' has no len() 
    9679  
    9680 TypeError: object of type 'NoneType' has no len() 
    9681  
    9682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9683 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9684 return self._any_displayed_positions and len(self._positions) > 0 
    9685 ^^^^^^^^^^^^^^^^^^^^ 
    9686  
    9687 See log for complete Python traceback. 
    9688  
    9689 Traceback (most recent call last): 
    9690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9691 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9692 val = col.display_value(item) 
    9693 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9695 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9696 val = self.value(instance) 
    9697 ^^^^^^^^^^^^^^^^^^^^ 
    9698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9699 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9700 return self.data_fetch(instance) 
    9701 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9703 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9704 if s.display and s.atoms.displays.any(): 
    9705 ^^^^^^^^^ 
    9706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9707 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9708 return Model.display.fget(self) 
    9709 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9711 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9712 return self._any_displayed_positions and len(self._positions) > 0 
    9713 ^^^^^^^^^^^^^^^^^^^^ 
    9714 TypeError: object of type 'NoneType' has no len() 
    9715  
    9716 TypeError: object of type 'NoneType' has no len() 
    9717  
    9718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9719 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9720 return self._any_displayed_positions and len(self._positions) > 0 
    9721 ^^^^^^^^^^^^^^^^^^^^ 
    9722  
    9723 See log for complete Python traceback. 
    9724  
    9725 Traceback (most recent call last): 
    9726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9727 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9728 val = col.display_value(item) 
    9729 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9731 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9732 val = self.value(instance) 
    9733 ^^^^^^^^^^^^^^^^^^^^ 
    9734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9735 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9736 return self.data_fetch(instance) 
    9737 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9739 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9740 if s.display and s.atoms.displays.any(): 
    9741 ^^^^^^^^^ 
    9742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9743 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9744 return Model.display.fget(self) 
    9745 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9747 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9748 return self._any_displayed_positions and len(self._positions) > 0 
    9749 ^^^^^^^^^^^^^^^^^^^^ 
    9750 TypeError: object of type 'NoneType' has no len() 
    9751  
    9752 TypeError: object of type 'NoneType' has no len() 
    9753  
    9754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9755 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9756 return self._any_displayed_positions and len(self._positions) > 0 
    9757 ^^^^^^^^^^^^^^^^^^^^ 
    9758  
    9759 See log for complete Python traceback. 
    9760  
    9761 Traceback (most recent call last): 
    9762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9763 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9764 val = col.display_value(item) 
    9765 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9767 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9768 val = self.value(instance) 
    9769 ^^^^^^^^^^^^^^^^^^^^ 
    9770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9771 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9772 return self.data_fetch(instance) 
    9773 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9775 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9776 if s.display and s.atoms.displays.any(): 
    9777 ^^^^^^^^^ 
    9778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9779 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9780 return Model.display.fget(self) 
    9781 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9783 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9784 return self._any_displayed_positions and len(self._positions) > 0 
    9785 ^^^^^^^^^^^^^^^^^^^^ 
    9786 TypeError: object of type 'NoneType' has no len() 
    9787  
    9788 TypeError: object of type 'NoneType' has no len() 
    9789  
    9790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9791 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9792 return self._any_displayed_positions and len(self._positions) > 0 
    9793 ^^^^^^^^^^^^^^^^^^^^ 
    9794  
    9795 See log for complete Python traceback. 
    9796  
    9797 Traceback (most recent call last): 
    9798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9799 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9800 val = col.display_value(item) 
    9801 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9803 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9804 val = self.value(instance) 
    9805 ^^^^^^^^^^^^^^^^^^^^ 
    9806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9807 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9808 return self.data_fetch(instance) 
    9809 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9811 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9812 if s.display and s.atoms.displays.any(): 
    9813 ^^^^^^^^^ 
    9814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9815 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9816 return Model.display.fget(self) 
    9817 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9819 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9820 return self._any_displayed_positions and len(self._positions) > 0 
    9821 ^^^^^^^^^^^^^^^^^^^^ 
    9822 TypeError: object of type 'NoneType' has no len() 
    9823  
    9824 TypeError: object of type 'NoneType' has no len() 
    9825  
    9826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9827 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9828 return self._any_displayed_positions and len(self._positions) > 0 
    9829 ^^^^^^^^^^^^^^^^^^^^ 
    9830  
    9831 See log for complete Python traceback. 
    9832  
    9833 Traceback (most recent call last): 
    9834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9835 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9836 val = col.display_value(item) 
    9837 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9839 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9840 val = self.value(instance) 
    9841 ^^^^^^^^^^^^^^^^^^^^ 
    9842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9843 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9844 return self.data_fetch(instance) 
    9845 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9847 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9848 if s.display and s.atoms.displays.any(): 
    9849 ^^^^^^^^^ 
    9850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9851 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9852 return Model.display.fget(self) 
    9853 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9855 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9856 return self._any_displayed_positions and len(self._positions) > 0 
    9857 ^^^^^^^^^^^^^^^^^^^^ 
    9858 TypeError: object of type 'NoneType' has no len() 
    9859  
    9860 TypeError: object of type 'NoneType' has no len() 
    9861  
    9862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9863 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9864 return self._any_displayed_positions and len(self._positions) > 0 
    9865 ^^^^^^^^^^^^^^^^^^^^ 
    9866  
    9867 See log for complete Python traceback. 
    9868  
    9869 Traceback (most recent call last): 
    9870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9871 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9872 val = col.display_value(item) 
    9873 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9875 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9876 val = self.value(instance) 
    9877 ^^^^^^^^^^^^^^^^^^^^ 
    9878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9879 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9880 return self.data_fetch(instance) 
    9881 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9883 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9884 if s.display and s.atoms.displays.any(): 
    9885 ^^^^^^^^^ 
    9886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9887 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9888 return Model.display.fget(self) 
    9889 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9891 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9892 return self._any_displayed_positions and len(self._positions) > 0 
    9893 ^^^^^^^^^^^^^^^^^^^^ 
    9894 TypeError: object of type 'NoneType' has no len() 
    9895  
    9896 TypeError: object of type 'NoneType' has no len() 
    9897  
    9898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9899 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9900 return self._any_displayed_positions and len(self._positions) > 0 
    9901 ^^^^^^^^^^^^^^^^^^^^ 
    9902  
    9903 See log for complete Python traceback. 
    9904  
    9905 Traceback (most recent call last): 
    9906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9907 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9908 val = col.display_value(item) 
    9909 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9911 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9912 val = self.value(instance) 
    9913 ^^^^^^^^^^^^^^^^^^^^ 
    9914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9915 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9916 return self.data_fetch(instance) 
    9917 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9919 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9920 if s.display and s.atoms.displays.any(): 
    9921 ^^^^^^^^^ 
    9922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9923 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9924 return Model.display.fget(self) 
    9925 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9927 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9928 return self._any_displayed_positions and len(self._positions) > 0 
    9929 ^^^^^^^^^^^^^^^^^^^^ 
    9930 TypeError: object of type 'NoneType' has no len() 
    9931  
    9932 TypeError: object of type 'NoneType' has no len() 
    9933  
    9934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9935 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9936 return self._any_displayed_positions and len(self._positions) > 0 
    9937 ^^^^^^^^^^^^^^^^^^^^ 
    9938  
    9939 See log for complete Python traceback. 
    9940  
    9941 Traceback (most recent call last): 
    9942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9943 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9944 val = col.display_value(item) 
    9945 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9947 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9948 val = self.value(instance) 
    9949 ^^^^^^^^^^^^^^^^^^^^ 
    9950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9951 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9952 return self.data_fetch(instance) 
    9953 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9955 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9956 if s.display and s.atoms.displays.any(): 
    9957 ^^^^^^^^^ 
    9958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9959 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9960 return Model.display.fget(self) 
    9961 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9963 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9964 return self._any_displayed_positions and len(self._positions) > 0 
    9965 ^^^^^^^^^^^^^^^^^^^^ 
    9966 TypeError: object of type 'NoneType' has no len() 
    9967  
    9968 TypeError: object of type 'NoneType' has no len() 
    9969  
    9970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9971 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    9972 return self._any_displayed_positions and len(self._positions) > 0 
    9973 ^^^^^^^^^^^^^^^^^^^^ 
    9974  
    9975 See log for complete Python traceback. 
    9976  
    9977 Traceback (most recent call last): 
    9978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9979 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    9980 val = col.display_value(item) 
    9981 ^^^^^^^^^^^^^^^^^^^^^^^ 
    9982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9983 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    9984 val = self.value(instance) 
    9985 ^^^^^^^^^^^^^^^^^^^^ 
    9986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9987 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    9988 return self.data_fetch(instance) 
    9989 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    9990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9991 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    9992 if s.display and s.atoms.displays.any(): 
    9993 ^^^^^^^^^ 
    9994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9995 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    9996 return Model.display.fget(self) 
    9997 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    9998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    9999 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10000 return self._any_displayed_positions and len(self._positions) > 0 
    10001 ^^^^^^^^^^^^^^^^^^^^ 
    10002 TypeError: object of type 'NoneType' has no len() 
    10003  
    10004 TypeError: object of type 'NoneType' has no len() 
    10005  
    10006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10007 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10008 return self._any_displayed_positions and len(self._positions) > 0 
    10009 ^^^^^^^^^^^^^^^^^^^^ 
    10010  
    10011 See log for complete Python traceback. 
    10012  
    10013 Traceback (most recent call last): 
    10014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10015 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10016 val = col.display_value(item) 
    10017 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10019 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10020 val = self.value(instance) 
    10021 ^^^^^^^^^^^^^^^^^^^^ 
    10022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10023 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10024 return self.data_fetch(instance) 
    10025 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10027 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10028 if s.display and s.atoms.displays.any(): 
    10029 ^^^^^^^^^ 
    10030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10031 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10032 return Model.display.fget(self) 
    10033 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10035 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10036 return self._any_displayed_positions and len(self._positions) > 0 
    10037 ^^^^^^^^^^^^^^^^^^^^ 
    10038 TypeError: object of type 'NoneType' has no len() 
    10039  
    10040 TypeError: object of type 'NoneType' has no len() 
    10041  
    10042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10043 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10044 return self._any_displayed_positions and len(self._positions) > 0 
    10045 ^^^^^^^^^^^^^^^^^^^^ 
    10046  
    10047 See log for complete Python traceback. 
    10048  
    10049 Traceback (most recent call last): 
    10050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10051 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10052 val = col.display_value(item) 
    10053 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10055 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10056 val = self.value(instance) 
    10057 ^^^^^^^^^^^^^^^^^^^^ 
    10058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10059 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10060 return self.data_fetch(instance) 
    10061 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10063 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10064 if s.display and s.atoms.displays.any(): 
    10065 ^^^^^^^^^ 
    10066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10067 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10068 return Model.display.fget(self) 
    10069 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10071 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10072 return self._any_displayed_positions and len(self._positions) > 0 
    10073 ^^^^^^^^^^^^^^^^^^^^ 
    10074 TypeError: object of type 'NoneType' has no len() 
    10075  
    10076 TypeError: object of type 'NoneType' has no len() 
    10077  
    10078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10079 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10080 return self._any_displayed_positions and len(self._positions) > 0 
    10081 ^^^^^^^^^^^^^^^^^^^^ 
    10082  
    10083 See log for complete Python traceback. 
    10084  
    10085 Traceback (most recent call last): 
    10086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10087 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10088 val = col.display_value(item) 
    10089 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10091 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10092 val = self.value(instance) 
    10093 ^^^^^^^^^^^^^^^^^^^^ 
    10094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10095 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10096 return self.data_fetch(instance) 
    10097 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10099 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10100 if s.display and s.atoms.displays.any(): 
    10101 ^^^^^^^^^ 
    10102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10103 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10104 return Model.display.fget(self) 
    10105 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10107 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10108 return self._any_displayed_positions and len(self._positions) > 0 
    10109 ^^^^^^^^^^^^^^^^^^^^ 
    10110 TypeError: object of type 'NoneType' has no len() 
    10111  
    10112 TypeError: object of type 'NoneType' has no len() 
    10113  
    10114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10115 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10116 return self._any_displayed_positions and len(self._positions) > 0 
    10117 ^^^^^^^^^^^^^^^^^^^^ 
    10118  
    10119 See log for complete Python traceback. 
    10120  
    10121 Traceback (most recent call last): 
    10122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10123 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10124 val = col.display_value(item) 
    10125 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10127 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10128 val = self.value(instance) 
    10129 ^^^^^^^^^^^^^^^^^^^^ 
    10130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10131 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10132 return self.data_fetch(instance) 
    10133 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10135 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10136 if s.display and s.atoms.displays.any(): 
    10137 ^^^^^^^^^ 
    10138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10139 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10140 return Model.display.fget(self) 
    10141 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10143 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10144 return self._any_displayed_positions and len(self._positions) > 0 
    10145 ^^^^^^^^^^^^^^^^^^^^ 
    10146 TypeError: object of type 'NoneType' has no len() 
    10147  
    10148 TypeError: object of type 'NoneType' has no len() 
    10149  
    10150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10151 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10152 return self._any_displayed_positions and len(self._positions) > 0 
    10153 ^^^^^^^^^^^^^^^^^^^^ 
    10154  
    10155 See log for complete Python traceback. 
    10156  
    10157 Traceback (most recent call last): 
    10158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10159 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10160 val = col.display_value(item) 
    10161 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10163 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10164 val = self.value(instance) 
    10165 ^^^^^^^^^^^^^^^^^^^^ 
    10166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10167 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10168 return self.data_fetch(instance) 
    10169 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10171 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10172 if s.display and s.atoms.displays.any(): 
    10173 ^^^^^^^^^ 
    10174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10175 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10176 return Model.display.fget(self) 
    10177 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10179 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10180 return self._any_displayed_positions and len(self._positions) > 0 
    10181 ^^^^^^^^^^^^^^^^^^^^ 
    10182 TypeError: object of type 'NoneType' has no len() 
    10183  
    10184 TypeError: object of type 'NoneType' has no len() 
    10185  
    10186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10187 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10188 return self._any_displayed_positions and len(self._positions) > 0 
    10189 ^^^^^^^^^^^^^^^^^^^^ 
    10190  
    10191 See log for complete Python traceback. 
    10192  
    10193 Traceback (most recent call last): 
    10194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10195 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10196 val = col.display_value(item) 
    10197 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10199 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10200 val = self.value(instance) 
    10201 ^^^^^^^^^^^^^^^^^^^^ 
    10202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10203 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10204 return self.data_fetch(instance) 
    10205 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10207 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10208 if s.display and s.atoms.displays.any(): 
    10209 ^^^^^^^^^ 
    10210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10211 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10212 return Model.display.fget(self) 
    10213 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10215 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10216 return self._any_displayed_positions and len(self._positions) > 0 
    10217 ^^^^^^^^^^^^^^^^^^^^ 
    10218 TypeError: object of type 'NoneType' has no len() 
    10219  
    10220 TypeError: object of type 'NoneType' has no len() 
    10221  
    10222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10223 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10224 return self._any_displayed_positions and len(self._positions) > 0 
    10225 ^^^^^^^^^^^^^^^^^^^^ 
    10226  
    10227 See log for complete Python traceback. 
    10228  
    10229 Traceback (most recent call last): 
    10230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10231 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10232 val = col.display_value(item) 
    10233 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10235 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10236 val = self.value(instance) 
    10237 ^^^^^^^^^^^^^^^^^^^^ 
    10238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10239 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10240 return self.data_fetch(instance) 
    10241 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10243 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10244 if s.display and s.atoms.displays.any(): 
    10245 ^^^^^^^^^ 
    10246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10247 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10248 return Model.display.fget(self) 
    10249 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10251 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10252 return self._any_displayed_positions and len(self._positions) > 0 
    10253 ^^^^^^^^^^^^^^^^^^^^ 
    10254 TypeError: object of type 'NoneType' has no len() 
    10255  
    10256 TypeError: object of type 'NoneType' has no len() 
    10257  
    10258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10259 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10260 return self._any_displayed_positions and len(self._positions) > 0 
    10261 ^^^^^^^^^^^^^^^^^^^^ 
    10262  
    10263 See log for complete Python traceback. 
    10264  
    10265 Traceback (most recent call last): 
    10266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10267 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10268 val = col.display_value(item) 
    10269 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10271 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10272 val = self.value(instance) 
    10273 ^^^^^^^^^^^^^^^^^^^^ 
    10274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10275 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10276 return self.data_fetch(instance) 
    10277 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10279 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10280 if s.display and s.atoms.displays.any(): 
    10281 ^^^^^^^^^ 
    10282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10283 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10284 return Model.display.fget(self) 
    10285 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10287 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10288 return self._any_displayed_positions and len(self._positions) > 0 
    10289 ^^^^^^^^^^^^^^^^^^^^ 
    10290 TypeError: object of type 'NoneType' has no len() 
    10291  
    10292 TypeError: object of type 'NoneType' has no len() 
    10293  
    10294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10295 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10296 return self._any_displayed_positions and len(self._positions) > 0 
    10297 ^^^^^^^^^^^^^^^^^^^^ 
    10298  
    10299 See log for complete Python traceback. 
    10300  
    10301 Traceback (most recent call last): 
    10302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10303 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10304 val = col.display_value(item) 
    10305 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10307 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10308 val = self.value(instance) 
    10309 ^^^^^^^^^^^^^^^^^^^^ 
    10310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10311 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10312 return self.data_fetch(instance) 
    10313 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10315 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10316 if s.display and s.atoms.displays.any(): 
    10317 ^^^^^^^^^ 
    10318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10319 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10320 return Model.display.fget(self) 
    10321 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10323 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10324 return self._any_displayed_positions and len(self._positions) > 0 
    10325 ^^^^^^^^^^^^^^^^^^^^ 
    10326 TypeError: object of type 'NoneType' has no len() 
    10327  
    10328 TypeError: object of type 'NoneType' has no len() 
    10329  
    10330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10331 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10332 return self._any_displayed_positions and len(self._positions) > 0 
    10333 ^^^^^^^^^^^^^^^^^^^^ 
    10334  
    10335 See log for complete Python traceback. 
    10336  
    10337 Traceback (most recent call last): 
    10338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10339 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10340 val = col.display_value(item) 
    10341 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10343 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10344 val = self.value(instance) 
    10345 ^^^^^^^^^^^^^^^^^^^^ 
    10346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10347 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10348 return self.data_fetch(instance) 
    10349 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10351 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10352 if s.display and s.atoms.displays.any(): 
    10353 ^^^^^^^^^ 
    10354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10355 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10356 return Model.display.fget(self) 
    10357 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10359 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10360 return self._any_displayed_positions and len(self._positions) > 0 
    10361 ^^^^^^^^^^^^^^^^^^^^ 
    10362 TypeError: object of type 'NoneType' has no len() 
    10363  
    10364 TypeError: object of type 'NoneType' has no len() 
    10365  
    10366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10367 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10368 return self._any_displayed_positions and len(self._positions) > 0 
    10369 ^^^^^^^^^^^^^^^^^^^^ 
    10370  
    10371 See log for complete Python traceback. 
    10372  
    10373 Traceback (most recent call last): 
    10374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10375 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10376 val = col.display_value(item) 
    10377 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10379 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10380 val = self.value(instance) 
    10381 ^^^^^^^^^^^^^^^^^^^^ 
    10382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10383 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10384 return self.data_fetch(instance) 
    10385 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10387 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10388 if s.display and s.atoms.displays.any(): 
    10389 ^^^^^^^^^ 
    10390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10391 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10392 return Model.display.fget(self) 
    10393 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10395 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10396 return self._any_displayed_positions and len(self._positions) > 0 
    10397 ^^^^^^^^^^^^^^^^^^^^ 
    10398 TypeError: object of type 'NoneType' has no len() 
    10399  
    10400 TypeError: object of type 'NoneType' has no len() 
    10401  
    10402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10403 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10404 return self._any_displayed_positions and len(self._positions) > 0 
    10405 ^^^^^^^^^^^^^^^^^^^^ 
    10406  
    10407 See log for complete Python traceback. 
    10408  
    10409 Traceback (most recent call last): 
    10410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10411 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10412 val = col.display_value(item) 
    10413 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10415 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10416 val = self.value(instance) 
    10417 ^^^^^^^^^^^^^^^^^^^^ 
    10418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10419 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10420 return self.data_fetch(instance) 
    10421 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10423 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10424 if s.display and s.atoms.displays.any(): 
    10425 ^^^^^^^^^ 
    10426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10427 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10428 return Model.display.fget(self) 
    10429 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10431 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10432 return self._any_displayed_positions and len(self._positions) > 0 
    10433 ^^^^^^^^^^^^^^^^^^^^ 
    10434 TypeError: object of type 'NoneType' has no len() 
    10435  
    10436 TypeError: object of type 'NoneType' has no len() 
    10437  
    10438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10439 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10440 return self._any_displayed_positions and len(self._positions) > 0 
    10441 ^^^^^^^^^^^^^^^^^^^^ 
    10442  
    10443 See log for complete Python traceback. 
    10444  
    10445 Traceback (most recent call last): 
    10446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10447 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10448 val = col.display_value(item) 
    10449 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10451 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10452 val = self.value(instance) 
    10453 ^^^^^^^^^^^^^^^^^^^^ 
    10454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10455 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10456 return self.data_fetch(instance) 
    10457 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10459 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10460 if s.display and s.atoms.displays.any(): 
    10461 ^^^^^^^^^ 
    10462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10463 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10464 return Model.display.fget(self) 
    10465 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10467 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10468 return self._any_displayed_positions and len(self._positions) > 0 
    10469 ^^^^^^^^^^^^^^^^^^^^ 
    10470 TypeError: object of type 'NoneType' has no len() 
    10471  
    10472 TypeError: object of type 'NoneType' has no len() 
    10473  
    10474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10475 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10476 return self._any_displayed_positions and len(self._positions) > 0 
    10477 ^^^^^^^^^^^^^^^^^^^^ 
    10478  
    10479 See log for complete Python traceback. 
    10480  
    10481 Traceback (most recent call last): 
    10482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10483 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10484 val = col.display_value(item) 
    10485 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10487 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10488 val = self.value(instance) 
    10489 ^^^^^^^^^^^^^^^^^^^^ 
    10490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10491 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10492 return self.data_fetch(instance) 
    10493 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10495 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10496 if s.display and s.atoms.displays.any(): 
    10497 ^^^^^^^^^ 
    10498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10499 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10500 return Model.display.fget(self) 
    10501 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10503 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10504 return self._any_displayed_positions and len(self._positions) > 0 
    10505 ^^^^^^^^^^^^^^^^^^^^ 
    10506 TypeError: object of type 'NoneType' has no len() 
    10507  
    10508 TypeError: object of type 'NoneType' has no len() 
    10509  
    10510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10511 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10512 return self._any_displayed_positions and len(self._positions) > 0 
    10513 ^^^^^^^^^^^^^^^^^^^^ 
    10514  
    10515 See log for complete Python traceback. 
    10516  
    10517 Traceback (most recent call last): 
    10518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10519 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10520 val = col.display_value(item) 
    10521 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10523 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10524 val = self.value(instance) 
    10525 ^^^^^^^^^^^^^^^^^^^^ 
    10526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10527 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10528 return self.data_fetch(instance) 
    10529 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10531 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10532 if s.display and s.atoms.displays.any(): 
    10533 ^^^^^^^^^ 
    10534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10535 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10536 return Model.display.fget(self) 
    10537 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10539 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10540 return self._any_displayed_positions and len(self._positions) > 0 
    10541 ^^^^^^^^^^^^^^^^^^^^ 
    10542 TypeError: object of type 'NoneType' has no len() 
    10543  
    10544 TypeError: object of type 'NoneType' has no len() 
    10545  
    10546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10547 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10548 return self._any_displayed_positions and len(self._positions) > 0 
    10549 ^^^^^^^^^^^^^^^^^^^^ 
    10550  
    10551 See log for complete Python traceback. 
    10552  
    10553 Traceback (most recent call last): 
    10554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10555 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10556 val = col.display_value(item) 
    10557 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10559 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10560 val = self.value(instance) 
    10561 ^^^^^^^^^^^^^^^^^^^^ 
    10562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10563 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10564 return self.data_fetch(instance) 
    10565 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10567 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10568 if s.display and s.atoms.displays.any(): 
    10569 ^^^^^^^^^ 
    10570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10571 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10572 return Model.display.fget(self) 
    10573 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10575 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10576 return self._any_displayed_positions and len(self._positions) > 0 
    10577 ^^^^^^^^^^^^^^^^^^^^ 
    10578 TypeError: object of type 'NoneType' has no len() 
    10579  
    10580 TypeError: object of type 'NoneType' has no len() 
    10581  
    10582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10583 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10584 return self._any_displayed_positions and len(self._positions) > 0 
    10585 ^^^^^^^^^^^^^^^^^^^^ 
    10586  
    10587 See log for complete Python traceback. 
    10588  
    10589 Traceback (most recent call last): 
    10590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10591 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10592 val = col.display_value(item) 
    10593 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10595 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10596 val = self.value(instance) 
    10597 ^^^^^^^^^^^^^^^^^^^^ 
    10598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10599 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10600 return self.data_fetch(instance) 
    10601 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10603 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10604 if s.display and s.atoms.displays.any(): 
    10605 ^^^^^^^^^ 
    10606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10607 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10608 return Model.display.fget(self) 
    10609 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10611 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10612 return self._any_displayed_positions and len(self._positions) > 0 
    10613 ^^^^^^^^^^^^^^^^^^^^ 
    10614 TypeError: object of type 'NoneType' has no len() 
    10615  
    10616 TypeError: object of type 'NoneType' has no len() 
    10617  
    10618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10619 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10620 return self._any_displayed_positions and len(self._positions) > 0 
    10621 ^^^^^^^^^^^^^^^^^^^^ 
    10622  
    10623 See log for complete Python traceback. 
    10624  
    10625 Traceback (most recent call last): 
    10626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10627 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10628 val = col.display_value(item) 
    10629 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10631 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10632 val = self.value(instance) 
    10633 ^^^^^^^^^^^^^^^^^^^^ 
    10634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10635 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10636 return self.data_fetch(instance) 
    10637 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10639 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10640 if s.display and s.atoms.displays.any(): 
    10641 ^^^^^^^^^ 
    10642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10643 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10644 return Model.display.fget(self) 
    10645 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10647 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10648 return self._any_displayed_positions and len(self._positions) > 0 
    10649 ^^^^^^^^^^^^^^^^^^^^ 
    10650 TypeError: object of type 'NoneType' has no len() 
    10651  
    10652 TypeError: object of type 'NoneType' has no len() 
    10653  
    10654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10655 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10656 return self._any_displayed_positions and len(self._positions) > 0 
    10657 ^^^^^^^^^^^^^^^^^^^^ 
    10658  
    10659 See log for complete Python traceback. 
    10660  
    10661 Traceback (most recent call last): 
    10662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10663 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10664 val = col.display_value(item) 
    10665 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10667 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10668 val = self.value(instance) 
    10669 ^^^^^^^^^^^^^^^^^^^^ 
    10670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10671 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10672 return self.data_fetch(instance) 
    10673 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10675 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10676 if s.display and s.atoms.displays.any(): 
    10677 ^^^^^^^^^ 
    10678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10679 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10680 return Model.display.fget(self) 
    10681 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10683 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10684 return self._any_displayed_positions and len(self._positions) > 0 
    10685 ^^^^^^^^^^^^^^^^^^^^ 
    10686 TypeError: object of type 'NoneType' has no len() 
    10687  
    10688 TypeError: object of type 'NoneType' has no len() 
    10689  
    10690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10691 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10692 return self._any_displayed_positions and len(self._positions) > 0 
    10693 ^^^^^^^^^^^^^^^^^^^^ 
    10694  
    10695 See log for complete Python traceback. 
    10696  
    10697 Traceback (most recent call last): 
    10698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10699 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10700 val = col.display_value(item) 
    10701 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10703 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10704 val = self.value(instance) 
    10705 ^^^^^^^^^^^^^^^^^^^^ 
    10706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10707 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10708 return self.data_fetch(instance) 
    10709 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10711 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10712 if s.display and s.atoms.displays.any(): 
    10713 ^^^^^^^^^ 
    10714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10715 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10716 return Model.display.fget(self) 
    10717 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10719 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10720 return self._any_displayed_positions and len(self._positions) > 0 
    10721 ^^^^^^^^^^^^^^^^^^^^ 
    10722 TypeError: object of type 'NoneType' has no len() 
    10723  
    10724 TypeError: object of type 'NoneType' has no len() 
    10725  
    10726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10727 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10728 return self._any_displayed_positions and len(self._positions) > 0 
    10729 ^^^^^^^^^^^^^^^^^^^^ 
    10730  
    10731 See log for complete Python traceback. 
    10732  
    10733 Traceback (most recent call last): 
    10734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10735 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10736 val = col.display_value(item) 
    10737 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10739 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10740 val = self.value(instance) 
    10741 ^^^^^^^^^^^^^^^^^^^^ 
    10742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10743 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10744 return self.data_fetch(instance) 
    10745 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10747 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10748 if s.display and s.atoms.displays.any(): 
    10749 ^^^^^^^^^ 
    10750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10751 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10752 return Model.display.fget(self) 
    10753 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10755 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10756 return self._any_displayed_positions and len(self._positions) > 0 
    10757 ^^^^^^^^^^^^^^^^^^^^ 
    10758 TypeError: object of type 'NoneType' has no len() 
    10759  
    10760 TypeError: object of type 'NoneType' has no len() 
    10761  
    10762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10763 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10764 return self._any_displayed_positions and len(self._positions) > 0 
    10765 ^^^^^^^^^^^^^^^^^^^^ 
    10766  
    10767 See log for complete Python traceback. 
    10768  
    10769 Traceback (most recent call last): 
    10770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10771 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10772 val = col.display_value(item) 
    10773 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10775 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10776 val = self.value(instance) 
    10777 ^^^^^^^^^^^^^^^^^^^^ 
    10778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10779 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10780 return self.data_fetch(instance) 
    10781 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10783 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10784 if s.display and s.atoms.displays.any(): 
    10785 ^^^^^^^^^ 
    10786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10787 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10788 return Model.display.fget(self) 
    10789 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10791 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10792 return self._any_displayed_positions and len(self._positions) > 0 
    10793 ^^^^^^^^^^^^^^^^^^^^ 
    10794 TypeError: object of type 'NoneType' has no len() 
    10795  
    10796 TypeError: object of type 'NoneType' has no len() 
    10797  
    10798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10799 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10800 return self._any_displayed_positions and len(self._positions) > 0 
    10801 ^^^^^^^^^^^^^^^^^^^^ 
    10802  
    10803 See log for complete Python traceback. 
    10804  
    10805 Traceback (most recent call last): 
    10806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10807 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10808 val = col.display_value(item) 
    10809 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10811 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10812 val = self.value(instance) 
    10813 ^^^^^^^^^^^^^^^^^^^^ 
    10814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10815 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10816 return self.data_fetch(instance) 
    10817 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10819 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10820 if s.display and s.atoms.displays.any(): 
    10821 ^^^^^^^^^ 
    10822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10823 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10824 return Model.display.fget(self) 
    10825 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10827 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10828 return self._any_displayed_positions and len(self._positions) > 0 
    10829 ^^^^^^^^^^^^^^^^^^^^ 
    10830 TypeError: object of type 'NoneType' has no len() 
    10831  
    10832 TypeError: object of type 'NoneType' has no len() 
    10833  
    10834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10835 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10836 return self._any_displayed_positions and len(self._positions) > 0 
    10837 ^^^^^^^^^^^^^^^^^^^^ 
    10838  
    10839 See log for complete Python traceback. 
    10840  
    10841 Traceback (most recent call last): 
    10842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10843 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10844 val = col.display_value(item) 
    10845 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10847 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10848 val = self.value(instance) 
    10849 ^^^^^^^^^^^^^^^^^^^^ 
    10850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10851 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10852 return self.data_fetch(instance) 
    10853 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10855 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10856 if s.display and s.atoms.displays.any(): 
    10857 ^^^^^^^^^ 
    10858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10859 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10860 return Model.display.fget(self) 
    10861 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10863 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10864 return self._any_displayed_positions and len(self._positions) > 0 
    10865 ^^^^^^^^^^^^^^^^^^^^ 
    10866 TypeError: object of type 'NoneType' has no len() 
    10867  
    10868 TypeError: object of type 'NoneType' has no len() 
    10869  
    10870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10871 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10872 return self._any_displayed_positions and len(self._positions) > 0 
    10873 ^^^^^^^^^^^^^^^^^^^^ 
    10874  
    10875 See log for complete Python traceback. 
    10876  
    10877 Traceback (most recent call last): 
    10878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10879 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10880 val = col.display_value(item) 
    10881 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10883 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10884 val = self.value(instance) 
    10885 ^^^^^^^^^^^^^^^^^^^^ 
    10886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10887 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10888 return self.data_fetch(instance) 
    10889 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10891 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10892 if s.display and s.atoms.displays.any(): 
    10893 ^^^^^^^^^ 
    10894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10895 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10896 return Model.display.fget(self) 
    10897 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10899 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10900 return self._any_displayed_positions and len(self._positions) > 0 
    10901 ^^^^^^^^^^^^^^^^^^^^ 
    10902 TypeError: object of type 'NoneType' has no len() 
    10903  
    10904 TypeError: object of type 'NoneType' has no len() 
    10905  
    10906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10907 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10908 return self._any_displayed_positions and len(self._positions) > 0 
    10909 ^^^^^^^^^^^^^^^^^^^^ 
    10910  
    10911 See log for complete Python traceback. 
    10912  
    10913 Traceback (most recent call last): 
    10914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10915 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10916 val = col.display_value(item) 
    10917 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10919 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10920 val = self.value(instance) 
    10921 ^^^^^^^^^^^^^^^^^^^^ 
    10922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10923 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10924 return self.data_fetch(instance) 
    10925 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10927 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10928 if s.display and s.atoms.displays.any(): 
    10929 ^^^^^^^^^ 
    10930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10931 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10932 return Model.display.fget(self) 
    10933 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10935 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10936 return self._any_displayed_positions and len(self._positions) > 0 
    10937 ^^^^^^^^^^^^^^^^^^^^ 
    10938 TypeError: object of type 'NoneType' has no len() 
    10939  
    10940 TypeError: object of type 'NoneType' has no len() 
    10941  
    10942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10943 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10944 return self._any_displayed_positions and len(self._positions) > 0 
    10945 ^^^^^^^^^^^^^^^^^^^^ 
    10946  
    10947 See log for complete Python traceback. 
    10948  
    10949 Traceback (most recent call last): 
    10950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10951 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10952 val = col.display_value(item) 
    10953 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10955 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10956 val = self.value(instance) 
    10957 ^^^^^^^^^^^^^^^^^^^^ 
    10958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10959 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10960 return self.data_fetch(instance) 
    10961 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10963 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    10964 if s.display and s.atoms.displays.any(): 
    10965 ^^^^^^^^^ 
    10966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10967 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    10968 return Model.display.fget(self) 
    10969 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    10970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10971 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10972 return self._any_displayed_positions and len(self._positions) > 0 
    10973 ^^^^^^^^^^^^^^^^^^^^ 
    10974 TypeError: object of type 'NoneType' has no len() 
    10975  
    10976 TypeError: object of type 'NoneType' has no len() 
    10977  
    10978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10979 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    10980 return self._any_displayed_positions and len(self._positions) > 0 
    10981 ^^^^^^^^^^^^^^^^^^^^ 
    10982  
    10983 See log for complete Python traceback. 
    10984  
    10985 Traceback (most recent call last): 
    10986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10987 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    10988 val = col.display_value(item) 
    10989 ^^^^^^^^^^^^^^^^^^^^^^^ 
    10990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10991 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    10992 val = self.value(instance) 
    10993 ^^^^^^^^^^^^^^^^^^^^ 
    10994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10995 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    10996 return self.data_fetch(instance) 
    10997 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    10998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    10999 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11000 if s.display and s.atoms.displays.any(): 
    11001 ^^^^^^^^^ 
    11002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11003 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11004 return Model.display.fget(self) 
    11005 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11007 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11008 return self._any_displayed_positions and len(self._positions) > 0 
    11009 ^^^^^^^^^^^^^^^^^^^^ 
    11010 TypeError: object of type 'NoneType' has no len() 
    11011  
    11012 TypeError: object of type 'NoneType' has no len() 
    11013  
    11014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11015 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11016 return self._any_displayed_positions and len(self._positions) > 0 
    11017 ^^^^^^^^^^^^^^^^^^^^ 
    11018  
    11019 See log for complete Python traceback. 
    11020  
    11021 Traceback (most recent call last): 
    11022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11023 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11024 val = col.display_value(item) 
    11025 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11027 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11028 val = self.value(instance) 
    11029 ^^^^^^^^^^^^^^^^^^^^ 
    11030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11031 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11032 return self.data_fetch(instance) 
    11033 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11035 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11036 if s.display and s.atoms.displays.any(): 
    11037 ^^^^^^^^^ 
    11038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11039 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11040 return Model.display.fget(self) 
    11041 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11043 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11044 return self._any_displayed_positions and len(self._positions) > 0 
    11045 ^^^^^^^^^^^^^^^^^^^^ 
    11046 TypeError: object of type 'NoneType' has no len() 
    11047  
    11048 TypeError: object of type 'NoneType' has no len() 
    11049  
    11050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11051 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11052 return self._any_displayed_positions and len(self._positions) > 0 
    11053 ^^^^^^^^^^^^^^^^^^^^ 
    11054  
    11055 See log for complete Python traceback. 
    11056  
    11057 Traceback (most recent call last): 
    11058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11059 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11060 val = col.display_value(item) 
    11061 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11063 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11064 val = self.value(instance) 
    11065 ^^^^^^^^^^^^^^^^^^^^ 
    11066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11067 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11068 return self.data_fetch(instance) 
    11069 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11071 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11072 if s.display and s.atoms.displays.any(): 
    11073 ^^^^^^^^^ 
    11074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11075 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11076 return Model.display.fget(self) 
    11077 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11079 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11080 return self._any_displayed_positions and len(self._positions) > 0 
    11081 ^^^^^^^^^^^^^^^^^^^^ 
    11082 TypeError: object of type 'NoneType' has no len() 
    11083  
    11084 TypeError: object of type 'NoneType' has no len() 
    11085  
    11086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11087 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11088 return self._any_displayed_positions and len(self._positions) > 0 
    11089 ^^^^^^^^^^^^^^^^^^^^ 
    11090  
    11091 See log for complete Python traceback. 
    11092  
    11093 Traceback (most recent call last): 
    11094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11095 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11096 val = col.display_value(item) 
    11097 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11099 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11100 val = self.value(instance) 
    11101 ^^^^^^^^^^^^^^^^^^^^ 
    11102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11103 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11104 return self.data_fetch(instance) 
    11105 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11107 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11108 if s.display and s.atoms.displays.any(): 
    11109 ^^^^^^^^^ 
    11110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11111 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11112 return Model.display.fget(self) 
    11113 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11115 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11116 return self._any_displayed_positions and len(self._positions) > 0 
    11117 ^^^^^^^^^^^^^^^^^^^^ 
    11118 TypeError: object of type 'NoneType' has no len() 
    11119  
    11120 TypeError: object of type 'NoneType' has no len() 
    11121  
    11122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11123 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11124 return self._any_displayed_positions and len(self._positions) > 0 
    11125 ^^^^^^^^^^^^^^^^^^^^ 
    11126  
    11127 See log for complete Python traceback. 
    11128  
    11129 Traceback (most recent call last): 
    11130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11131 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11132 val = col.display_value(item) 
    11133 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11135 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11136 val = self.value(instance) 
    11137 ^^^^^^^^^^^^^^^^^^^^ 
    11138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11139 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11140 return self.data_fetch(instance) 
    11141 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11143 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11144 if s.display and s.atoms.displays.any(): 
    11145 ^^^^^^^^^ 
    11146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11147 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11148 return Model.display.fget(self) 
    11149 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11151 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11152 return self._any_displayed_positions and len(self._positions) > 0 
    11153 ^^^^^^^^^^^^^^^^^^^^ 
    11154 TypeError: object of type 'NoneType' has no len() 
    11155  
    11156 TypeError: object of type 'NoneType' has no len() 
    11157  
    11158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11159 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11160 return self._any_displayed_positions and len(self._positions) > 0 
    11161 ^^^^^^^^^^^^^^^^^^^^ 
    11162  
    11163 See log for complete Python traceback. 
    11164  
    11165 Traceback (most recent call last): 
    11166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11167 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11168 val = col.display_value(item) 
    11169 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11171 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11172 val = self.value(instance) 
    11173 ^^^^^^^^^^^^^^^^^^^^ 
    11174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11175 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11176 return self.data_fetch(instance) 
    11177 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11179 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11180 if s.display and s.atoms.displays.any(): 
    11181 ^^^^^^^^^ 
    11182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11183 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11184 return Model.display.fget(self) 
    11185 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11187 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11188 return self._any_displayed_positions and len(self._positions) > 0 
    11189 ^^^^^^^^^^^^^^^^^^^^ 
    11190 TypeError: object of type 'NoneType' has no len() 
    11191  
    11192 TypeError: object of type 'NoneType' has no len() 
    11193  
    11194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11195 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11196 return self._any_displayed_positions and len(self._positions) > 0 
    11197 ^^^^^^^^^^^^^^^^^^^^ 
    11198  
    11199 See log for complete Python traceback. 
    11200  
    11201 Traceback (most recent call last): 
    11202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11203 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11204 val = col.display_value(item) 
    11205 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11207 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11208 val = self.value(instance) 
    11209 ^^^^^^^^^^^^^^^^^^^^ 
    11210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11211 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11212 return self.data_fetch(instance) 
    11213 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11215 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11216 if s.display and s.atoms.displays.any(): 
    11217 ^^^^^^^^^ 
    11218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11219 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11220 return Model.display.fget(self) 
    11221 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11223 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11224 return self._any_displayed_positions and len(self._positions) > 0 
    11225 ^^^^^^^^^^^^^^^^^^^^ 
    11226 TypeError: object of type 'NoneType' has no len() 
    11227  
    11228 TypeError: object of type 'NoneType' has no len() 
    11229  
    11230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11231 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11232 return self._any_displayed_positions and len(self._positions) > 0 
    11233 ^^^^^^^^^^^^^^^^^^^^ 
    11234  
    11235 See log for complete Python traceback. 
    11236  
    11237 Traceback (most recent call last): 
    11238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11239 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11240 val = col.display_value(item) 
    11241 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11243 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11244 val = self.value(instance) 
    11245 ^^^^^^^^^^^^^^^^^^^^ 
    11246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11247 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11248 return self.data_fetch(instance) 
    11249 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11251 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11252 if s.display and s.atoms.displays.any(): 
    11253 ^^^^^^^^^ 
    11254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11255 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11256 return Model.display.fget(self) 
    11257 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11259 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11260 return self._any_displayed_positions and len(self._positions) > 0 
    11261 ^^^^^^^^^^^^^^^^^^^^ 
    11262 TypeError: object of type 'NoneType' has no len() 
    11263  
    11264 TypeError: object of type 'NoneType' has no len() 
    11265  
    11266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11267 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11268 return self._any_displayed_positions and len(self._positions) > 0 
    11269 ^^^^^^^^^^^^^^^^^^^^ 
    11270  
    11271 See log for complete Python traceback. 
    11272  
    11273 Traceback (most recent call last): 
    11274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11275 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11276 val = col.display_value(item) 
    11277 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11279 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11280 val = self.value(instance) 
    11281 ^^^^^^^^^^^^^^^^^^^^ 
    11282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11283 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11284 return self.data_fetch(instance) 
    11285 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11287 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11288 if s.display and s.atoms.displays.any(): 
    11289 ^^^^^^^^^ 
    11290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11291 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11292 return Model.display.fget(self) 
    11293 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11295 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11296 return self._any_displayed_positions and len(self._positions) > 0 
    11297 ^^^^^^^^^^^^^^^^^^^^ 
    11298 TypeError: object of type 'NoneType' has no len() 
    11299  
    11300 TypeError: object of type 'NoneType' has no len() 
    11301  
    11302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11303 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11304 return self._any_displayed_positions and len(self._positions) > 0 
    11305 ^^^^^^^^^^^^^^^^^^^^ 
    11306  
    11307 See log for complete Python traceback. 
    11308  
    11309 Traceback (most recent call last): 
    11310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11311 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11312 val = col.display_value(item) 
    11313 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11315 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11316 val = self.value(instance) 
    11317 ^^^^^^^^^^^^^^^^^^^^ 
    11318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11319 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11320 return self.data_fetch(instance) 
    11321 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11323 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11324 if s.display and s.atoms.displays.any(): 
    11325 ^^^^^^^^^ 
    11326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11327 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11328 return Model.display.fget(self) 
    11329 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11331 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11332 return self._any_displayed_positions and len(self._positions) > 0 
    11333 ^^^^^^^^^^^^^^^^^^^^ 
    11334 TypeError: object of type 'NoneType' has no len() 
    11335  
    11336 TypeError: object of type 'NoneType' has no len() 
    11337  
    11338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11339 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11340 return self._any_displayed_positions and len(self._positions) > 0 
    11341 ^^^^^^^^^^^^^^^^^^^^ 
    11342  
    11343 See log for complete Python traceback. 
    11344  
    11345 Traceback (most recent call last): 
    11346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11347 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11348 val = col.display_value(item) 
    11349 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11351 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11352 val = self.value(instance) 
    11353 ^^^^^^^^^^^^^^^^^^^^ 
    11354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11355 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11356 return self.data_fetch(instance) 
    11357 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11359 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11360 if s.display and s.atoms.displays.any(): 
    11361 ^^^^^^^^^ 
    11362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11363 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11364 return Model.display.fget(self) 
    11365 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11367 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11368 return self._any_displayed_positions and len(self._positions) > 0 
    11369 ^^^^^^^^^^^^^^^^^^^^ 
    11370 TypeError: object of type 'NoneType' has no len() 
    11371  
    11372 TypeError: object of type 'NoneType' has no len() 
    11373  
    11374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11375 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11376 return self._any_displayed_positions and len(self._positions) > 0 
    11377 ^^^^^^^^^^^^^^^^^^^^ 
    11378  
    11379 See log for complete Python traceback. 
    11380  
    11381 Traceback (most recent call last): 
    11382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11383 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11384 val = col.display_value(item) 
    11385 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11387 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11388 val = self.value(instance) 
    11389 ^^^^^^^^^^^^^^^^^^^^ 
    11390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11391 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11392 return self.data_fetch(instance) 
    11393 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11395 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11396 if s.display and s.atoms.displays.any(): 
    11397 ^^^^^^^^^ 
    11398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11399 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11400 return Model.display.fget(self) 
    11401 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11403 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11404 return self._any_displayed_positions and len(self._positions) > 0 
    11405 ^^^^^^^^^^^^^^^^^^^^ 
    11406 TypeError: object of type 'NoneType' has no len() 
    11407  
    11408 TypeError: object of type 'NoneType' has no len() 
    11409  
    11410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11411 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11412 return self._any_displayed_positions and len(self._positions) > 0 
    11413 ^^^^^^^^^^^^^^^^^^^^ 
    11414  
    11415 See log for complete Python traceback. 
    11416  
    11417 Traceback (most recent call last): 
    11418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11419 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11420 val = col.display_value(item) 
    11421 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11423 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11424 val = self.value(instance) 
    11425 ^^^^^^^^^^^^^^^^^^^^ 
    11426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11427 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11428 return self.data_fetch(instance) 
    11429 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11431 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11432 if s.display and s.atoms.displays.any(): 
    11433 ^^^^^^^^^ 
    11434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11435 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11436 return Model.display.fget(self) 
    11437 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11439 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11440 return self._any_displayed_positions and len(self._positions) > 0 
    11441 ^^^^^^^^^^^^^^^^^^^^ 
    11442 TypeError: object of type 'NoneType' has no len() 
    11443  
    11444 TypeError: object of type 'NoneType' has no len() 
    11445  
    11446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11447 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11448 return self._any_displayed_positions and len(self._positions) > 0 
    11449 ^^^^^^^^^^^^^^^^^^^^ 
    11450  
    11451 See log for complete Python traceback. 
    11452  
    11453 Traceback (most recent call last): 
    11454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11455 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11456 val = col.display_value(item) 
    11457 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11459 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11460 val = self.value(instance) 
    11461 ^^^^^^^^^^^^^^^^^^^^ 
    11462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11463 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11464 return self.data_fetch(instance) 
    11465 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11467 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11468 if s.display and s.atoms.displays.any(): 
    11469 ^^^^^^^^^ 
    11470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11471 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11472 return Model.display.fget(self) 
    11473 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11475 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11476 return self._any_displayed_positions and len(self._positions) > 0 
    11477 ^^^^^^^^^^^^^^^^^^^^ 
    11478 TypeError: object of type 'NoneType' has no len() 
    11479  
    11480 TypeError: object of type 'NoneType' has no len() 
    11481  
    11482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11483 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11484 return self._any_displayed_positions and len(self._positions) > 0 
    11485 ^^^^^^^^^^^^^^^^^^^^ 
    11486  
    11487 See log for complete Python traceback. 
    11488  
    11489 Traceback (most recent call last): 
    11490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11491 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11492 val = col.display_value(item) 
    11493 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11495 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11496 val = self.value(instance) 
    11497 ^^^^^^^^^^^^^^^^^^^^ 
    11498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11499 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11500 return self.data_fetch(instance) 
    11501 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11503 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11504 if s.display and s.atoms.displays.any(): 
    11505 ^^^^^^^^^ 
    11506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11507 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11508 return Model.display.fget(self) 
    11509 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11511 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11512 return self._any_displayed_positions and len(self._positions) > 0 
    11513 ^^^^^^^^^^^^^^^^^^^^ 
    11514 TypeError: object of type 'NoneType' has no len() 
    11515  
    11516 TypeError: object of type 'NoneType' has no len() 
    11517  
    11518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11519 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11520 return self._any_displayed_positions and len(self._positions) > 0 
    11521 ^^^^^^^^^^^^^^^^^^^^ 
    11522  
    11523 See log for complete Python traceback. 
    11524  
    11525 Traceback (most recent call last): 
    11526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11527 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11528 val = col.display_value(item) 
    11529 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11531 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11532 val = self.value(instance) 
    11533 ^^^^^^^^^^^^^^^^^^^^ 
    11534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11535 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11536 return self.data_fetch(instance) 
    11537 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11539 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11540 if s.display and s.atoms.displays.any(): 
    11541 ^^^^^^^^^ 
    11542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11543 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11544 return Model.display.fget(self) 
    11545 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11547 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11548 return self._any_displayed_positions and len(self._positions) > 0 
    11549 ^^^^^^^^^^^^^^^^^^^^ 
    11550 TypeError: object of type 'NoneType' has no len() 
    11551  
    11552 TypeError: object of type 'NoneType' has no len() 
    11553  
    11554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11555 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11556 return self._any_displayed_positions and len(self._positions) > 0 
    11557 ^^^^^^^^^^^^^^^^^^^^ 
    11558  
    11559 See log for complete Python traceback. 
    11560  
    11561 Traceback (most recent call last): 
    11562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11563 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11564 val = col.display_value(item) 
    11565 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11567 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11568 val = self.value(instance) 
    11569 ^^^^^^^^^^^^^^^^^^^^ 
    11570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11571 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11572 return self.data_fetch(instance) 
    11573 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11575 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11576 if s.display and s.atoms.displays.any(): 
    11577 ^^^^^^^^^ 
    11578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11579 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11580 return Model.display.fget(self) 
    11581 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11583 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11584 return self._any_displayed_positions and len(self._positions) > 0 
    11585 ^^^^^^^^^^^^^^^^^^^^ 
    11586 TypeError: object of type 'NoneType' has no len() 
    11587  
    11588 TypeError: object of type 'NoneType' has no len() 
    11589  
    11590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11591 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11592 return self._any_displayed_positions and len(self._positions) > 0 
    11593 ^^^^^^^^^^^^^^^^^^^^ 
    11594  
    11595 See log for complete Python traceback. 
    11596  
    11597 Traceback (most recent call last): 
    11598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11599 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11600 val = col.display_value(item) 
    11601 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11603 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11604 val = self.value(instance) 
    11605 ^^^^^^^^^^^^^^^^^^^^ 
    11606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11607 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11608 return self.data_fetch(instance) 
    11609 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11611 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11612 if s.display and s.atoms.displays.any(): 
    11613 ^^^^^^^^^ 
    11614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11615 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11616 return Model.display.fget(self) 
    11617 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11619 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11620 return self._any_displayed_positions and len(self._positions) > 0 
    11621 ^^^^^^^^^^^^^^^^^^^^ 
    11622 TypeError: object of type 'NoneType' has no len() 
    11623  
    11624 TypeError: object of type 'NoneType' has no len() 
    11625  
    11626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11627 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11628 return self._any_displayed_positions and len(self._positions) > 0 
    11629 ^^^^^^^^^^^^^^^^^^^^ 
    11630  
    11631 See log for complete Python traceback. 
    11632  
    11633 Traceback (most recent call last): 
    11634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11635 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11636 val = col.display_value(item) 
    11637 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11639 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11640 val = self.value(instance) 
    11641 ^^^^^^^^^^^^^^^^^^^^ 
    11642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11643 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11644 return self.data_fetch(instance) 
    11645 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11647 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11648 if s.display and s.atoms.displays.any(): 
    11649 ^^^^^^^^^ 
    11650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11651 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11652 return Model.display.fget(self) 
    11653 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11655 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11656 return self._any_displayed_positions and len(self._positions) > 0 
    11657 ^^^^^^^^^^^^^^^^^^^^ 
    11658 TypeError: object of type 'NoneType' has no len() 
    11659  
    11660 TypeError: object of type 'NoneType' has no len() 
    11661  
    11662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11663 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11664 return self._any_displayed_positions and len(self._positions) > 0 
    11665 ^^^^^^^^^^^^^^^^^^^^ 
    11666  
    11667 See log for complete Python traceback. 
    11668  
    11669 Traceback (most recent call last): 
    11670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11671 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11672 val = col.display_value(item) 
    11673 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11675 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11676 val = self.value(instance) 
    11677 ^^^^^^^^^^^^^^^^^^^^ 
    11678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11679 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11680 return self.data_fetch(instance) 
    11681 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11683 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11684 if s.display and s.atoms.displays.any(): 
    11685 ^^^^^^^^^ 
    11686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11687 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11688 return Model.display.fget(self) 
    11689 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11691 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11692 return self._any_displayed_positions and len(self._positions) > 0 
    11693 ^^^^^^^^^^^^^^^^^^^^ 
    11694 TypeError: object of type 'NoneType' has no len() 
    11695  
    11696 TypeError: object of type 'NoneType' has no len() 
    11697  
    11698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11699 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11700 return self._any_displayed_positions and len(self._positions) > 0 
    11701 ^^^^^^^^^^^^^^^^^^^^ 
    11702  
    11703 See log for complete Python traceback. 
    11704  
    11705 Traceback (most recent call last): 
    11706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11707 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11708 val = col.display_value(item) 
    11709 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11711 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11712 val = self.value(instance) 
    11713 ^^^^^^^^^^^^^^^^^^^^ 
    11714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11715 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11716 return self.data_fetch(instance) 
    11717 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11719 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11720 if s.display and s.atoms.displays.any(): 
    11721 ^^^^^^^^^ 
    11722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11723 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11724 return Model.display.fget(self) 
    11725 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11727 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11728 return self._any_displayed_positions and len(self._positions) > 0 
    11729 ^^^^^^^^^^^^^^^^^^^^ 
    11730 TypeError: object of type 'NoneType' has no len() 
    11731  
    11732 TypeError: object of type 'NoneType' has no len() 
    11733  
    11734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11735 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11736 return self._any_displayed_positions and len(self._positions) > 0 
    11737 ^^^^^^^^^^^^^^^^^^^^ 
    11738  
    11739 See log for complete Python traceback. 
    11740  
    11741 Traceback (most recent call last): 
    11742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11743 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11744 val = col.display_value(item) 
    11745 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11747 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11748 val = self.value(instance) 
    11749 ^^^^^^^^^^^^^^^^^^^^ 
    11750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11751 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11752 return self.data_fetch(instance) 
    11753 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11755 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11756 if s.display and s.atoms.displays.any(): 
    11757 ^^^^^^^^^ 
    11758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11759 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11760 return Model.display.fget(self) 
    11761 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11763 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11764 return self._any_displayed_positions and len(self._positions) > 0 
    11765 ^^^^^^^^^^^^^^^^^^^^ 
    11766 TypeError: object of type 'NoneType' has no len() 
    11767  
    11768 TypeError: object of type 'NoneType' has no len() 
    11769  
    11770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11771 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11772 return self._any_displayed_positions and len(self._positions) > 0 
    11773 ^^^^^^^^^^^^^^^^^^^^ 
    11774  
    11775 See log for complete Python traceback. 
    11776  
    11777 Traceback (most recent call last): 
    11778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11779 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11780 val = col.display_value(item) 
    11781 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11783 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11784 val = self.value(instance) 
    11785 ^^^^^^^^^^^^^^^^^^^^ 
    11786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11787 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11788 return self.data_fetch(instance) 
    11789 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11791 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11792 if s.display and s.atoms.displays.any(): 
    11793 ^^^^^^^^^ 
    11794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11795 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11796 return Model.display.fget(self) 
    11797 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11799 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11800 return self._any_displayed_positions and len(self._positions) > 0 
    11801 ^^^^^^^^^^^^^^^^^^^^ 
    11802 TypeError: object of type 'NoneType' has no len() 
    11803  
    11804 TypeError: object of type 'NoneType' has no len() 
    11805  
    11806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11807 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11808 return self._any_displayed_positions and len(self._positions) > 0 
    11809 ^^^^^^^^^^^^^^^^^^^^ 
    11810  
    11811 See log for complete Python traceback. 
    11812  
    11813 Traceback (most recent call last): 
    11814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11815 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11816 val = col.display_value(item) 
    11817 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11819 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11820 val = self.value(instance) 
    11821 ^^^^^^^^^^^^^^^^^^^^ 
    11822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11823 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11824 return self.data_fetch(instance) 
    11825 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11827 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11828 if s.display and s.atoms.displays.any(): 
    11829 ^^^^^^^^^ 
    11830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11831 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11832 return Model.display.fget(self) 
    11833 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11835 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11836 return self._any_displayed_positions and len(self._positions) > 0 
    11837 ^^^^^^^^^^^^^^^^^^^^ 
    11838 TypeError: object of type 'NoneType' has no len() 
    11839  
    11840 TypeError: object of type 'NoneType' has no len() 
    11841  
    11842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11843 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11844 return self._any_displayed_positions and len(self._positions) > 0 
    11845 ^^^^^^^^^^^^^^^^^^^^ 
    11846  
    11847 See log for complete Python traceback. 
    11848  
    11849 Traceback (most recent call last): 
    11850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11851 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11852 val = col.display_value(item) 
    11853 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11855 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11856 val = self.value(instance) 
    11857 ^^^^^^^^^^^^^^^^^^^^ 
    11858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11859 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11860 return self.data_fetch(instance) 
    11861 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11863 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11864 if s.display and s.atoms.displays.any(): 
    11865 ^^^^^^^^^ 
    11866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11867 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11868 return Model.display.fget(self) 
    11869 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11871 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11872 return self._any_displayed_positions and len(self._positions) > 0 
    11873 ^^^^^^^^^^^^^^^^^^^^ 
    11874 TypeError: object of type 'NoneType' has no len() 
    11875  
    11876 TypeError: object of type 'NoneType' has no len() 
    11877  
    11878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11879 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11880 return self._any_displayed_positions and len(self._positions) > 0 
    11881 ^^^^^^^^^^^^^^^^^^^^ 
    11882  
    11883 See log for complete Python traceback. 
    11884  
    11885 Traceback (most recent call last): 
    11886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11887 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11888 val = col.display_value(item) 
    11889 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11891 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11892 val = self.value(instance) 
    11893 ^^^^^^^^^^^^^^^^^^^^ 
    11894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11895 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11896 return self.data_fetch(instance) 
    11897 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11899 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11900 if s.display and s.atoms.displays.any(): 
    11901 ^^^^^^^^^ 
    11902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11903 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11904 return Model.display.fget(self) 
    11905 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11907 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11908 return self._any_displayed_positions and len(self._positions) > 0 
    11909 ^^^^^^^^^^^^^^^^^^^^ 
    11910 TypeError: object of type 'NoneType' has no len() 
    11911  
    11912 TypeError: object of type 'NoneType' has no len() 
    11913  
    11914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11915 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11916 return self._any_displayed_positions and len(self._positions) > 0 
    11917 ^^^^^^^^^^^^^^^^^^^^ 
    11918  
    11919 See log for complete Python traceback. 
    11920  
    11921 Traceback (most recent call last): 
    11922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11923 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11924 val = col.display_value(item) 
    11925 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11927 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11928 val = self.value(instance) 
    11929 ^^^^^^^^^^^^^^^^^^^^ 
    11930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11931 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11932 return self.data_fetch(instance) 
    11933 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11935 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11936 if s.display and s.atoms.displays.any(): 
    11937 ^^^^^^^^^ 
    11938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11939 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11940 return Model.display.fget(self) 
    11941 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11943 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11944 return self._any_displayed_positions and len(self._positions) > 0 
    11945 ^^^^^^^^^^^^^^^^^^^^ 
    11946 TypeError: object of type 'NoneType' has no len() 
    11947  
    11948 TypeError: object of type 'NoneType' has no len() 
    11949  
    11950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11951 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11952 return self._any_displayed_positions and len(self._positions) > 0 
    11953 ^^^^^^^^^^^^^^^^^^^^ 
    11954  
    11955 See log for complete Python traceback. 
    11956  
    11957 Traceback (most recent call last): 
    11958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11959 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11960 val = col.display_value(item) 
    11961 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11963 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    11964 val = self.value(instance) 
    11965 ^^^^^^^^^^^^^^^^^^^^ 
    11966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11967 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    11968 return self.data_fetch(instance) 
    11969 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    11970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11971 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    11972 if s.display and s.atoms.displays.any(): 
    11973 ^^^^^^^^^ 
    11974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11975 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    11976 return Model.display.fget(self) 
    11977 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    11978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11979 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11980 return self._any_displayed_positions and len(self._positions) > 0 
    11981 ^^^^^^^^^^^^^^^^^^^^ 
    11982 TypeError: object of type 'NoneType' has no len() 
    11983  
    11984 TypeError: object of type 'NoneType' has no len() 
    11985  
    11986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11987 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    11988 return self._any_displayed_positions and len(self._positions) > 0 
    11989 ^^^^^^^^^^^^^^^^^^^^ 
    11990  
    11991 See log for complete Python traceback. 
    11992  
    11993 Traceback (most recent call last): 
    11994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11995 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    11996 val = col.display_value(item) 
    11997 ^^^^^^^^^^^^^^^^^^^^^^^ 
    11998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    11999 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12000 val = self.value(instance) 
    12001 ^^^^^^^^^^^^^^^^^^^^ 
    12002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12003 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12004 return self.data_fetch(instance) 
    12005 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12007 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12008 if s.display and s.atoms.displays.any(): 
    12009 ^^^^^^^^^ 
    12010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12011 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12012 return Model.display.fget(self) 
    12013 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12015 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12016 return self._any_displayed_positions and len(self._positions) > 0 
    12017 ^^^^^^^^^^^^^^^^^^^^ 
    12018 TypeError: object of type 'NoneType' has no len() 
    12019  
    12020 TypeError: object of type 'NoneType' has no len() 
    12021  
    12022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12023 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12024 return self._any_displayed_positions and len(self._positions) > 0 
    12025 ^^^^^^^^^^^^^^^^^^^^ 
    12026  
    12027 See log for complete Python traceback. 
    12028  
    12029 Traceback (most recent call last): 
    12030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12031 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12032 val = col.display_value(item) 
    12033 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12035 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12036 val = self.value(instance) 
    12037 ^^^^^^^^^^^^^^^^^^^^ 
    12038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12039 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12040 return self.data_fetch(instance) 
    12041 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12043 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12044 if s.display and s.atoms.displays.any(): 
    12045 ^^^^^^^^^ 
    12046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12047 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12048 return Model.display.fget(self) 
    12049 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12051 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12052 return self._any_displayed_positions and len(self._positions) > 0 
    12053 ^^^^^^^^^^^^^^^^^^^^ 
    12054 TypeError: object of type 'NoneType' has no len() 
    12055  
    12056 TypeError: object of type 'NoneType' has no len() 
    12057  
    12058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12059 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12060 return self._any_displayed_positions and len(self._positions) > 0 
    12061 ^^^^^^^^^^^^^^^^^^^^ 
    12062  
    12063 See log for complete Python traceback. 
    12064  
    12065 Traceback (most recent call last): 
    12066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12067 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12068 val = col.display_value(item) 
    12069 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12071 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12072 val = self.value(instance) 
    12073 ^^^^^^^^^^^^^^^^^^^^ 
    12074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12075 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12076 return self.data_fetch(instance) 
    12077 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12079 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12080 if s.display and s.atoms.displays.any(): 
    12081 ^^^^^^^^^ 
    12082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12083 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12084 return Model.display.fget(self) 
    12085 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12087 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12088 return self._any_displayed_positions and len(self._positions) > 0 
    12089 ^^^^^^^^^^^^^^^^^^^^ 
    12090 TypeError: object of type 'NoneType' has no len() 
    12091  
    12092 TypeError: object of type 'NoneType' has no len() 
    12093  
    12094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12095 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12096 return self._any_displayed_positions and len(self._positions) > 0 
    12097 ^^^^^^^^^^^^^^^^^^^^ 
    12098  
    12099 See log for complete Python traceback. 
    12100  
    12101 Traceback (most recent call last): 
    12102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12103 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12104 val = col.display_value(item) 
    12105 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12107 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12108 val = self.value(instance) 
    12109 ^^^^^^^^^^^^^^^^^^^^ 
    12110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12111 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12112 return self.data_fetch(instance) 
    12113 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12115 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12116 if s.display and s.atoms.displays.any(): 
    12117 ^^^^^^^^^ 
    12118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12119 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12120 return Model.display.fget(self) 
    12121 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12123 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12124 return self._any_displayed_positions and len(self._positions) > 0 
    12125 ^^^^^^^^^^^^^^^^^^^^ 
    12126 TypeError: object of type 'NoneType' has no len() 
    12127  
    12128 TypeError: object of type 'NoneType' has no len() 
    12129  
    12130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12131 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12132 return self._any_displayed_positions and len(self._positions) > 0 
    12133 ^^^^^^^^^^^^^^^^^^^^ 
    12134  
    12135 See log for complete Python traceback. 
    12136  
    12137 Traceback (most recent call last): 
    12138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12139 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12140 val = col.display_value(item) 
    12141 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12143 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12144 val = self.value(instance) 
    12145 ^^^^^^^^^^^^^^^^^^^^ 
    12146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12147 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12148 return self.data_fetch(instance) 
    12149 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12151 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12152 if s.display and s.atoms.displays.any(): 
    12153 ^^^^^^^^^ 
    12154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12155 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12156 return Model.display.fget(self) 
    12157 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12159 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12160 return self._any_displayed_positions and len(self._positions) > 0 
    12161 ^^^^^^^^^^^^^^^^^^^^ 
    12162 TypeError: object of type 'NoneType' has no len() 
    12163  
    12164 TypeError: object of type 'NoneType' has no len() 
    12165  
    12166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12167 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12168 return self._any_displayed_positions and len(self._positions) > 0 
    12169 ^^^^^^^^^^^^^^^^^^^^ 
    12170  
    12171 See log for complete Python traceback. 
    12172  
    12173 Traceback (most recent call last): 
    12174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12175 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12176 val = col.display_value(item) 
    12177 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12179 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12180 val = self.value(instance) 
    12181 ^^^^^^^^^^^^^^^^^^^^ 
    12182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12183 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12184 return self.data_fetch(instance) 
    12185 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12187 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12188 if s.display and s.atoms.displays.any(): 
    12189 ^^^^^^^^^ 
    12190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12191 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12192 return Model.display.fget(self) 
    12193 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12195 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12196 return self._any_displayed_positions and len(self._positions) > 0 
    12197 ^^^^^^^^^^^^^^^^^^^^ 
    12198 TypeError: object of type 'NoneType' has no len() 
    12199  
    12200 TypeError: object of type 'NoneType' has no len() 
    12201  
    12202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12203 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12204 return self._any_displayed_positions and len(self._positions) > 0 
    12205 ^^^^^^^^^^^^^^^^^^^^ 
    12206  
    12207 See log for complete Python traceback. 
    12208  
    12209 Traceback (most recent call last): 
    12210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12211 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12212 val = col.display_value(item) 
    12213 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12215 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12216 val = self.value(instance) 
    12217 ^^^^^^^^^^^^^^^^^^^^ 
    12218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12219 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12220 return self.data_fetch(instance) 
    12221 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12223 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12224 if s.display and s.atoms.displays.any(): 
    12225 ^^^^^^^^^ 
    12226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12227 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12228 return Model.display.fget(self) 
    12229 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12231 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12232 return self._any_displayed_positions and len(self._positions) > 0 
    12233 ^^^^^^^^^^^^^^^^^^^^ 
    12234 TypeError: object of type 'NoneType' has no len() 
    12235  
    12236 TypeError: object of type 'NoneType' has no len() 
    12237  
    12238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12239 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12240 return self._any_displayed_positions and len(self._positions) > 0 
    12241 ^^^^^^^^^^^^^^^^^^^^ 
    12242  
    12243 See log for complete Python traceback. 
    12244  
    12245 Traceback (most recent call last): 
    12246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12247 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12248 val = col.display_value(item) 
    12249 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12251 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12252 val = self.value(instance) 
    12253 ^^^^^^^^^^^^^^^^^^^^ 
    12254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12255 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12256 return self.data_fetch(instance) 
    12257 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12259 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12260 if s.display and s.atoms.displays.any(): 
    12261 ^^^^^^^^^ 
    12262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12263 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12264 return Model.display.fget(self) 
    12265 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12267 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12268 return self._any_displayed_positions and len(self._positions) > 0 
    12269 ^^^^^^^^^^^^^^^^^^^^ 
    12270 TypeError: object of type 'NoneType' has no len() 
    12271  
    12272 TypeError: object of type 'NoneType' has no len() 
    12273  
    12274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12275 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12276 return self._any_displayed_positions and len(self._positions) > 0 
    12277 ^^^^^^^^^^^^^^^^^^^^ 
    12278  
    12279 See log for complete Python traceback. 
    12280  
    12281 Traceback (most recent call last): 
    12282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12283 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12284 val = col.display_value(item) 
    12285 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12287 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12288 val = self.value(instance) 
    12289 ^^^^^^^^^^^^^^^^^^^^ 
    12290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12291 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12292 return self.data_fetch(instance) 
    12293 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12295 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12296 if s.display and s.atoms.displays.any(): 
    12297 ^^^^^^^^^ 
    12298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12299 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12300 return Model.display.fget(self) 
    12301 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12303 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12304 return self._any_displayed_positions and len(self._positions) > 0 
    12305 ^^^^^^^^^^^^^^^^^^^^ 
    12306 TypeError: object of type 'NoneType' has no len() 
    12307  
    12308 TypeError: object of type 'NoneType' has no len() 
    12309  
    12310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12311 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12312 return self._any_displayed_positions and len(self._positions) > 0 
    12313 ^^^^^^^^^^^^^^^^^^^^ 
    12314  
    12315 See log for complete Python traceback. 
    12316  
    12317 Traceback (most recent call last): 
    12318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12319 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12320 val = col.display_value(item) 
    12321 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12323 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12324 val = self.value(instance) 
    12325 ^^^^^^^^^^^^^^^^^^^^ 
    12326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12327 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12328 return self.data_fetch(instance) 
    12329 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12331 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12332 if s.display and s.atoms.displays.any(): 
    12333 ^^^^^^^^^ 
    12334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12335 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12336 return Model.display.fget(self) 
    12337 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12339 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12340 return self._any_displayed_positions and len(self._positions) > 0 
    12341 ^^^^^^^^^^^^^^^^^^^^ 
    12342 TypeError: object of type 'NoneType' has no len() 
    12343  
    12344 TypeError: object of type 'NoneType' has no len() 
    12345  
    12346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12347 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12348 return self._any_displayed_positions and len(self._positions) > 0 
    12349 ^^^^^^^^^^^^^^^^^^^^ 
    12350  
    12351 See log for complete Python traceback. 
    12352  
    12353 Traceback (most recent call last): 
    12354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12355 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12356 val = col.display_value(item) 
    12357 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12359 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12360 val = self.value(instance) 
    12361 ^^^^^^^^^^^^^^^^^^^^ 
    12362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12363 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12364 return self.data_fetch(instance) 
    12365 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12367 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12368 if s.display and s.atoms.displays.any(): 
    12369 ^^^^^^^^^ 
    12370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12371 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12372 return Model.display.fget(self) 
    12373 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12375 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12376 return self._any_displayed_positions and len(self._positions) > 0 
    12377 ^^^^^^^^^^^^^^^^^^^^ 
    12378 TypeError: object of type 'NoneType' has no len() 
    12379  
    12380 TypeError: object of type 'NoneType' has no len() 
    12381  
    12382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12383 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12384 return self._any_displayed_positions and len(self._positions) > 0 
    12385 ^^^^^^^^^^^^^^^^^^^^ 
    12386  
    12387 See log for complete Python traceback. 
    12388  
    12389 Traceback (most recent call last): 
    12390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12391 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12392 val = col.display_value(item) 
    12393 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12395 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12396 val = self.value(instance) 
    12397 ^^^^^^^^^^^^^^^^^^^^ 
    12398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12399 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12400 return self.data_fetch(instance) 
    12401 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12403 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12404 if s.display and s.atoms.displays.any(): 
    12405 ^^^^^^^^^ 
    12406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12407 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12408 return Model.display.fget(self) 
    12409 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12411 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12412 return self._any_displayed_positions and len(self._positions) > 0 
    12413 ^^^^^^^^^^^^^^^^^^^^ 
    12414 TypeError: object of type 'NoneType' has no len() 
    12415  
    12416 TypeError: object of type 'NoneType' has no len() 
    12417  
    12418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12419 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12420 return self._any_displayed_positions and len(self._positions) > 0 
    12421 ^^^^^^^^^^^^^^^^^^^^ 
    12422  
    12423 See log for complete Python traceback. 
    12424  
    12425 Traceback (most recent call last): 
    12426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12427 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12428 val = col.display_value(item) 
    12429 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12431 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12432 val = self.value(instance) 
    12433 ^^^^^^^^^^^^^^^^^^^^ 
    12434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12435 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12436 return self.data_fetch(instance) 
    12437 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12439 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12440 if s.display and s.atoms.displays.any(): 
    12441 ^^^^^^^^^ 
    12442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12443 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12444 return Model.display.fget(self) 
    12445 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12447 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12448 return self._any_displayed_positions and len(self._positions) > 0 
    12449 ^^^^^^^^^^^^^^^^^^^^ 
    12450 TypeError: object of type 'NoneType' has no len() 
    12451  
    12452 TypeError: object of type 'NoneType' has no len() 
    12453  
    12454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12455 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12456 return self._any_displayed_positions and len(self._positions) > 0 
    12457 ^^^^^^^^^^^^^^^^^^^^ 
    12458  
    12459 See log for complete Python traceback. 
    12460  
    12461 Traceback (most recent call last): 
    12462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12463 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12464 val = col.display_value(item) 
    12465 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12467 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12468 val = self.value(instance) 
    12469 ^^^^^^^^^^^^^^^^^^^^ 
    12470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12471 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12472 return self.data_fetch(instance) 
    12473 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12475 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12476 if s.display and s.atoms.displays.any(): 
    12477 ^^^^^^^^^ 
    12478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12479 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12480 return Model.display.fget(self) 
    12481 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12483 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12484 return self._any_displayed_positions and len(self._positions) > 0 
    12485 ^^^^^^^^^^^^^^^^^^^^ 
    12486 TypeError: object of type 'NoneType' has no len() 
    12487  
    12488 TypeError: object of type 'NoneType' has no len() 
    12489  
    12490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12491 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12492 return self._any_displayed_positions and len(self._positions) > 0 
    12493 ^^^^^^^^^^^^^^^^^^^^ 
    12494  
    12495 See log for complete Python traceback. 
    12496  
    12497 Traceback (most recent call last): 
    12498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12499 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12500 val = col.display_value(item) 
    12501 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12503 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12504 val = self.value(instance) 
    12505 ^^^^^^^^^^^^^^^^^^^^ 
    12506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12507 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12508 return self.data_fetch(instance) 
    12509 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12511 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12512 if s.display and s.atoms.displays.any(): 
    12513 ^^^^^^^^^ 
    12514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12515 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12516 return Model.display.fget(self) 
    12517 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12519 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12520 return self._any_displayed_positions and len(self._positions) > 0 
    12521 ^^^^^^^^^^^^^^^^^^^^ 
    12522 TypeError: object of type 'NoneType' has no len() 
    12523  
    12524 TypeError: object of type 'NoneType' has no len() 
    12525  
    12526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12527 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12528 return self._any_displayed_positions and len(self._positions) > 0 
    12529 ^^^^^^^^^^^^^^^^^^^^ 
    12530  
    12531 See log for complete Python traceback. 
    12532  
    12533 Traceback (most recent call last): 
    12534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12535 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12536 val = col.display_value(item) 
    12537 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12539 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12540 val = self.value(instance) 
    12541 ^^^^^^^^^^^^^^^^^^^^ 
    12542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12543 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12544 return self.data_fetch(instance) 
    12545 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12547 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12548 if s.display and s.atoms.displays.any(): 
    12549 ^^^^^^^^^ 
    12550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12551 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12552 return Model.display.fget(self) 
    12553 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12555 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12556 return self._any_displayed_positions and len(self._positions) > 0 
    12557 ^^^^^^^^^^^^^^^^^^^^ 
    12558 TypeError: object of type 'NoneType' has no len() 
    12559  
    12560 TypeError: object of type 'NoneType' has no len() 
    12561  
    12562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12563 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12564 return self._any_displayed_positions and len(self._positions) > 0 
    12565 ^^^^^^^^^^^^^^^^^^^^ 
    12566  
    12567 See log for complete Python traceback. 
    12568  
    12569 Traceback (most recent call last): 
    12570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12571 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12572 val = col.display_value(item) 
    12573 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12575 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12576 val = self.value(instance) 
    12577 ^^^^^^^^^^^^^^^^^^^^ 
    12578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12579 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12580 return self.data_fetch(instance) 
    12581 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12583 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12584 if s.display and s.atoms.displays.any(): 
    12585 ^^^^^^^^^ 
    12586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12587 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12588 return Model.display.fget(self) 
    12589 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12591 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12592 return self._any_displayed_positions and len(self._positions) > 0 
    12593 ^^^^^^^^^^^^^^^^^^^^ 
    12594 TypeError: object of type 'NoneType' has no len() 
    12595  
    12596 TypeError: object of type 'NoneType' has no len() 
    12597  
    12598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12599 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12600 return self._any_displayed_positions and len(self._positions) > 0 
    12601 ^^^^^^^^^^^^^^^^^^^^ 
    12602  
    12603 See log for complete Python traceback. 
    12604  
    12605 Traceback (most recent call last): 
    12606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12607 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12608 val = col.display_value(item) 
    12609 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12611 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12612 val = self.value(instance) 
    12613 ^^^^^^^^^^^^^^^^^^^^ 
    12614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12615 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12616 return self.data_fetch(instance) 
    12617 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12619 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12620 if s.display and s.atoms.displays.any(): 
    12621 ^^^^^^^^^ 
    12622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12623 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12624 return Model.display.fget(self) 
    12625 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12627 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12628 return self._any_displayed_positions and len(self._positions) > 0 
    12629 ^^^^^^^^^^^^^^^^^^^^ 
    12630 TypeError: object of type 'NoneType' has no len() 
    12631  
    12632 TypeError: object of type 'NoneType' has no len() 
    12633  
    12634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12635 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12636 return self._any_displayed_positions and len(self._positions) > 0 
    12637 ^^^^^^^^^^^^^^^^^^^^ 
    12638  
    12639 See log for complete Python traceback. 
    12640  
    12641 Traceback (most recent call last): 
    12642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12643 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12644 val = col.display_value(item) 
    12645 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12647 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12648 val = self.value(instance) 
    12649 ^^^^^^^^^^^^^^^^^^^^ 
    12650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12651 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12652 return self.data_fetch(instance) 
    12653 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12655 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12656 if s.display and s.atoms.displays.any(): 
    12657 ^^^^^^^^^ 
    12658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12659 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12660 return Model.display.fget(self) 
    12661 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12663 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12664 return self._any_displayed_positions and len(self._positions) > 0 
    12665 ^^^^^^^^^^^^^^^^^^^^ 
    12666 TypeError: object of type 'NoneType' has no len() 
    12667  
    12668 TypeError: object of type 'NoneType' has no len() 
    12669  
    12670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12671 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12672 return self._any_displayed_positions and len(self._positions) > 0 
    12673 ^^^^^^^^^^^^^^^^^^^^ 
    12674  
    12675 See log for complete Python traceback. 
    12676  
    12677 Traceback (most recent call last): 
    12678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12679 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12680 val = col.display_value(item) 
    12681 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12683 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12684 val = self.value(instance) 
    12685 ^^^^^^^^^^^^^^^^^^^^ 
    12686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12687 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12688 return self.data_fetch(instance) 
    12689 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12691 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12692 if s.display and s.atoms.displays.any(): 
    12693 ^^^^^^^^^ 
    12694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12695 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12696 return Model.display.fget(self) 
    12697 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12699 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12700 return self._any_displayed_positions and len(self._positions) > 0 
    12701 ^^^^^^^^^^^^^^^^^^^^ 
    12702 TypeError: object of type 'NoneType' has no len() 
    12703  
    12704 TypeError: object of type 'NoneType' has no len() 
    12705  
    12706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12707 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12708 return self._any_displayed_positions and len(self._positions) > 0 
    12709 ^^^^^^^^^^^^^^^^^^^^ 
    12710  
    12711 See log for complete Python traceback. 
    12712  
    12713 Traceback (most recent call last): 
    12714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12715 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12716 val = col.display_value(item) 
    12717 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12719 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12720 val = self.value(instance) 
    12721 ^^^^^^^^^^^^^^^^^^^^ 
    12722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12723 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12724 return self.data_fetch(instance) 
    12725 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12727 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12728 if s.display and s.atoms.displays.any(): 
    12729 ^^^^^^^^^ 
    12730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12731 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12732 return Model.display.fget(self) 
    12733 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12735 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12736 return self._any_displayed_positions and len(self._positions) > 0 
    12737 ^^^^^^^^^^^^^^^^^^^^ 
    12738 TypeError: object of type 'NoneType' has no len() 
    12739  
    12740 TypeError: object of type 'NoneType' has no len() 
    12741  
    12742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12743 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12744 return self._any_displayed_positions and len(self._positions) > 0 
    12745 ^^^^^^^^^^^^^^^^^^^^ 
    12746  
    12747 See log for complete Python traceback. 
    12748  
    12749 Traceback (most recent call last): 
    12750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12751 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12752 val = col.display_value(item) 
    12753 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12755 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12756 val = self.value(instance) 
    12757 ^^^^^^^^^^^^^^^^^^^^ 
    12758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12759 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12760 return self.data_fetch(instance) 
    12761 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12763 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12764 if s.display and s.atoms.displays.any(): 
    12765 ^^^^^^^^^ 
    12766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12767 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12768 return Model.display.fget(self) 
    12769 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12771 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12772 return self._any_displayed_positions and len(self._positions) > 0 
    12773 ^^^^^^^^^^^^^^^^^^^^ 
    12774 TypeError: object of type 'NoneType' has no len() 
    12775  
    12776 TypeError: object of type 'NoneType' has no len() 
    12777  
    12778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12779 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12780 return self._any_displayed_positions and len(self._positions) > 0 
    12781 ^^^^^^^^^^^^^^^^^^^^ 
    12782  
    12783 See log for complete Python traceback. 
    12784  
    12785 Traceback (most recent call last): 
    12786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12787 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12788 val = col.display_value(item) 
    12789 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12791 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12792 val = self.value(instance) 
    12793 ^^^^^^^^^^^^^^^^^^^^ 
    12794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12795 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12796 return self.data_fetch(instance) 
    12797 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12799 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12800 if s.display and s.atoms.displays.any(): 
    12801 ^^^^^^^^^ 
    12802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12803 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12804 return Model.display.fget(self) 
    12805 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12807 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12808 return self._any_displayed_positions and len(self._positions) > 0 
    12809 ^^^^^^^^^^^^^^^^^^^^ 
    12810 TypeError: object of type 'NoneType' has no len() 
    12811  
    12812 TypeError: object of type 'NoneType' has no len() 
    12813  
    12814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12815 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12816 return self._any_displayed_positions and len(self._positions) > 0 
    12817 ^^^^^^^^^^^^^^^^^^^^ 
    12818  
    12819 See log for complete Python traceback. 
    12820  
    12821 Traceback (most recent call last): 
    12822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12823 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12824 val = col.display_value(item) 
    12825 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12827 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12828 val = self.value(instance) 
    12829 ^^^^^^^^^^^^^^^^^^^^ 
    12830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12831 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12832 return self.data_fetch(instance) 
    12833 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12835 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12836 if s.display and s.atoms.displays.any(): 
    12837 ^^^^^^^^^ 
    12838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12839 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12840 return Model.display.fget(self) 
    12841 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12843 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12844 return self._any_displayed_positions and len(self._positions) > 0 
    12845 ^^^^^^^^^^^^^^^^^^^^ 
    12846 TypeError: object of type 'NoneType' has no len() 
    12847  
    12848 TypeError: object of type 'NoneType' has no len() 
    12849  
    12850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12851 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12852 return self._any_displayed_positions and len(self._positions) > 0 
    12853 ^^^^^^^^^^^^^^^^^^^^ 
    12854  
    12855 See log for complete Python traceback. 
    12856  
    12857 Traceback (most recent call last): 
    12858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12859 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12860 val = col.display_value(item) 
    12861 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12863 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12864 val = self.value(instance) 
    12865 ^^^^^^^^^^^^^^^^^^^^ 
    12866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12867 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12868 return self.data_fetch(instance) 
    12869 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12871 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12872 if s.display and s.atoms.displays.any(): 
    12873 ^^^^^^^^^ 
    12874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12875 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12876 return Model.display.fget(self) 
    12877 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12879 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12880 return self._any_displayed_positions and len(self._positions) > 0 
    12881 ^^^^^^^^^^^^^^^^^^^^ 
    12882 TypeError: object of type 'NoneType' has no len() 
    12883  
    12884 TypeError: object of type 'NoneType' has no len() 
    12885  
    12886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12887 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12888 return self._any_displayed_positions and len(self._positions) > 0 
    12889 ^^^^^^^^^^^^^^^^^^^^ 
    12890  
    12891 See log for complete Python traceback. 
    12892  
    12893 Traceback (most recent call last): 
    12894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12895 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12896 val = col.display_value(item) 
    12897 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12899 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12900 val = self.value(instance) 
    12901 ^^^^^^^^^^^^^^^^^^^^ 
    12902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12903 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12904 return self.data_fetch(instance) 
    12905 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12907 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12908 if s.display and s.atoms.displays.any(): 
    12909 ^^^^^^^^^ 
    12910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12911 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12912 return Model.display.fget(self) 
    12913 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12915 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12916 return self._any_displayed_positions and len(self._positions) > 0 
    12917 ^^^^^^^^^^^^^^^^^^^^ 
    12918 TypeError: object of type 'NoneType' has no len() 
    12919  
    12920 TypeError: object of type 'NoneType' has no len() 
    12921  
    12922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12923 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12924 return self._any_displayed_positions and len(self._positions) > 0 
    12925 ^^^^^^^^^^^^^^^^^^^^ 
    12926  
    12927 See log for complete Python traceback. 
    12928  
    12929 Traceback (most recent call last): 
    12930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12931 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12932 val = col.display_value(item) 
    12933 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12935 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12936 val = self.value(instance) 
    12937 ^^^^^^^^^^^^^^^^^^^^ 
    12938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12939 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12940 return self.data_fetch(instance) 
    12941 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12943 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12944 if s.display and s.atoms.displays.any(): 
    12945 ^^^^^^^^^ 
    12946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12947 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12948 return Model.display.fget(self) 
    12949 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12951 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12952 return self._any_displayed_positions and len(self._positions) > 0 
    12953 ^^^^^^^^^^^^^^^^^^^^ 
    12954 TypeError: object of type 'NoneType' has no len() 
    12955  
    12956 TypeError: object of type 'NoneType' has no len() 
    12957  
    12958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12959 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12960 return self._any_displayed_positions and len(self._positions) > 0 
    12961 ^^^^^^^^^^^^^^^^^^^^ 
    12962  
    12963 See log for complete Python traceback. 
    12964  
    12965 Traceback (most recent call last): 
    12966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12967 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    12968 val = col.display_value(item) 
    12969 ^^^^^^^^^^^^^^^^^^^^^^^ 
    12970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12971 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    12972 val = self.value(instance) 
    12973 ^^^^^^^^^^^^^^^^^^^^ 
    12974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12975 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    12976 return self.data_fetch(instance) 
    12977 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    12978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12979 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    12980 if s.display and s.atoms.displays.any(): 
    12981 ^^^^^^^^^ 
    12982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12983 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    12984 return Model.display.fget(self) 
    12985 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    12986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12987 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12988 return self._any_displayed_positions and len(self._positions) > 0 
    12989 ^^^^^^^^^^^^^^^^^^^^ 
    12990 TypeError: object of type 'NoneType' has no len() 
    12991  
    12992 TypeError: object of type 'NoneType' has no len() 
    12993  
    12994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    12995 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    12996 return self._any_displayed_positions and len(self._positions) > 0 
    12997 ^^^^^^^^^^^^^^^^^^^^ 
    12998  
    12999 See log for complete Python traceback. 
    13000  
    13001 Traceback (most recent call last): 
    13002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13003 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13004 val = col.display_value(item) 
    13005 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13007 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13008 val = self.value(instance) 
    13009 ^^^^^^^^^^^^^^^^^^^^ 
    13010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13011 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13012 return self.data_fetch(instance) 
    13013 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13015 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13016 if s.display and s.atoms.displays.any(): 
    13017 ^^^^^^^^^ 
    13018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13019 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13020 return Model.display.fget(self) 
    13021 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13023 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13024 return self._any_displayed_positions and len(self._positions) > 0 
    13025 ^^^^^^^^^^^^^^^^^^^^ 
    13026 TypeError: object of type 'NoneType' has no len() 
    13027  
    13028 TypeError: object of type 'NoneType' has no len() 
    13029  
    13030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13031 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13032 return self._any_displayed_positions and len(self._positions) > 0 
    13033 ^^^^^^^^^^^^^^^^^^^^ 
    13034  
    13035 See log for complete Python traceback. 
    13036  
    13037 Traceback (most recent call last): 
    13038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13039 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13040 val = col.display_value(item) 
    13041 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13043 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13044 val = self.value(instance) 
    13045 ^^^^^^^^^^^^^^^^^^^^ 
    13046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13047 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13048 return self.data_fetch(instance) 
    13049 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13051 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13052 if s.display and s.atoms.displays.any(): 
    13053 ^^^^^^^^^ 
    13054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13055 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13056 return Model.display.fget(self) 
    13057 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13059 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13060 return self._any_displayed_positions and len(self._positions) > 0 
    13061 ^^^^^^^^^^^^^^^^^^^^ 
    13062 TypeError: object of type 'NoneType' has no len() 
    13063  
    13064 TypeError: object of type 'NoneType' has no len() 
    13065  
    13066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13067 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13068 return self._any_displayed_positions and len(self._positions) > 0 
    13069 ^^^^^^^^^^^^^^^^^^^^ 
    13070  
    13071 See log for complete Python traceback. 
    13072  
    13073 Traceback (most recent call last): 
    13074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13075 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13076 val = col.display_value(item) 
    13077 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13079 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13080 val = self.value(instance) 
    13081 ^^^^^^^^^^^^^^^^^^^^ 
    13082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13083 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13084 return self.data_fetch(instance) 
    13085 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13087 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13088 if s.display and s.atoms.displays.any(): 
    13089 ^^^^^^^^^ 
    13090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13091 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13092 return Model.display.fget(self) 
    13093 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13095 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13096 return self._any_displayed_positions and len(self._positions) > 0 
    13097 ^^^^^^^^^^^^^^^^^^^^ 
    13098 TypeError: object of type 'NoneType' has no len() 
    13099  
    13100 TypeError: object of type 'NoneType' has no len() 
    13101  
    13102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13103 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13104 return self._any_displayed_positions and len(self._positions) > 0 
    13105 ^^^^^^^^^^^^^^^^^^^^ 
    13106  
    13107 See log for complete Python traceback. 
    13108  
    13109 Traceback (most recent call last): 
    13110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13111 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13112 val = col.display_value(item) 
    13113 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13115 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13116 val = self.value(instance) 
    13117 ^^^^^^^^^^^^^^^^^^^^ 
    13118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13119 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13120 return self.data_fetch(instance) 
    13121 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13123 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13124 if s.display and s.atoms.displays.any(): 
    13125 ^^^^^^^^^ 
    13126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13127 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13128 return Model.display.fget(self) 
    13129 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13131 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13132 return self._any_displayed_positions and len(self._positions) > 0 
    13133 ^^^^^^^^^^^^^^^^^^^^ 
    13134 TypeError: object of type 'NoneType' has no len() 
    13135  
    13136 TypeError: object of type 'NoneType' has no len() 
    13137  
    13138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13139 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13140 return self._any_displayed_positions and len(self._positions) > 0 
    13141 ^^^^^^^^^^^^^^^^^^^^ 
    13142  
    13143 See log for complete Python traceback. 
    13144  
    13145 Traceback (most recent call last): 
    13146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13147 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13148 val = col.display_value(item) 
    13149 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13151 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13152 val = self.value(instance) 
    13153 ^^^^^^^^^^^^^^^^^^^^ 
    13154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13155 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13156 return self.data_fetch(instance) 
    13157 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13159 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13160 if s.display and s.atoms.displays.any(): 
    13161 ^^^^^^^^^ 
    13162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13163 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13164 return Model.display.fget(self) 
    13165 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13167 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13168 return self._any_displayed_positions and len(self._positions) > 0 
    13169 ^^^^^^^^^^^^^^^^^^^^ 
    13170 TypeError: object of type 'NoneType' has no len() 
    13171  
    13172 TypeError: object of type 'NoneType' has no len() 
    13173  
    13174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13175 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13176 return self._any_displayed_positions and len(self._positions) > 0 
    13177 ^^^^^^^^^^^^^^^^^^^^ 
    13178  
    13179 See log for complete Python traceback. 
    13180  
    13181 Traceback (most recent call last): 
    13182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13183 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13184 val = col.display_value(item) 
    13185 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13187 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13188 val = self.value(instance) 
    13189 ^^^^^^^^^^^^^^^^^^^^ 
    13190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13191 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13192 return self.data_fetch(instance) 
    13193 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13195 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13196 if s.display and s.atoms.displays.any(): 
    13197 ^^^^^^^^^ 
    13198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13199 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13200 return Model.display.fget(self) 
    13201 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13203 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13204 return self._any_displayed_positions and len(self._positions) > 0 
    13205 ^^^^^^^^^^^^^^^^^^^^ 
    13206 TypeError: object of type 'NoneType' has no len() 
    13207  
    13208 TypeError: object of type 'NoneType' has no len() 
    13209  
    13210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13211 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13212 return self._any_displayed_positions and len(self._positions) > 0 
    13213 ^^^^^^^^^^^^^^^^^^^^ 
    13214  
    13215 See log for complete Python traceback. 
    13216  
    13217 Traceback (most recent call last): 
    13218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13219 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13220 val = col.display_value(item) 
    13221 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13223 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13224 val = self.value(instance) 
    13225 ^^^^^^^^^^^^^^^^^^^^ 
    13226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13227 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13228 return self.data_fetch(instance) 
    13229 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13231 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13232 if s.display and s.atoms.displays.any(): 
    13233 ^^^^^^^^^ 
    13234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13235 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13236 return Model.display.fget(self) 
    13237 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13239 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13240 return self._any_displayed_positions and len(self._positions) > 0 
    13241 ^^^^^^^^^^^^^^^^^^^^ 
    13242 TypeError: object of type 'NoneType' has no len() 
    13243  
    13244 TypeError: object of type 'NoneType' has no len() 
    13245  
    13246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13247 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13248 return self._any_displayed_positions and len(self._positions) > 0 
    13249 ^^^^^^^^^^^^^^^^^^^^ 
    13250  
    13251 See log for complete Python traceback. 
    13252  
    13253 Traceback (most recent call last): 
    13254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13255 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13256 val = col.display_value(item) 
    13257 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13259 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13260 val = self.value(instance) 
    13261 ^^^^^^^^^^^^^^^^^^^^ 
    13262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13263 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13264 return self.data_fetch(instance) 
    13265 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13267 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13268 if s.display and s.atoms.displays.any(): 
    13269 ^^^^^^^^^ 
    13270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13271 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13272 return Model.display.fget(self) 
    13273 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13275 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13276 return self._any_displayed_positions and len(self._positions) > 0 
    13277 ^^^^^^^^^^^^^^^^^^^^ 
    13278 TypeError: object of type 'NoneType' has no len() 
    13279  
    13280 TypeError: object of type 'NoneType' has no len() 
    13281  
    13282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13283 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13284 return self._any_displayed_positions and len(self._positions) > 0 
    13285 ^^^^^^^^^^^^^^^^^^^^ 
    13286  
    13287 See log for complete Python traceback. 
    13288  
    13289 Traceback (most recent call last): 
    13290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13291 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13292 val = col.display_value(item) 
    13293 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13295 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13296 val = self.value(instance) 
    13297 ^^^^^^^^^^^^^^^^^^^^ 
    13298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13299 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13300 return self.data_fetch(instance) 
    13301 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13303 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13304 if s.display and s.atoms.displays.any(): 
    13305 ^^^^^^^^^ 
    13306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13307 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13308 return Model.display.fget(self) 
    13309 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13311 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13312 return self._any_displayed_positions and len(self._positions) > 0 
    13313 ^^^^^^^^^^^^^^^^^^^^ 
    13314 TypeError: object of type 'NoneType' has no len() 
    13315  
    13316 TypeError: object of type 'NoneType' has no len() 
    13317  
    13318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13319 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13320 return self._any_displayed_positions and len(self._positions) > 0 
    13321 ^^^^^^^^^^^^^^^^^^^^ 
    13322  
    13323 See log for complete Python traceback. 
    13324  
    13325 Traceback (most recent call last): 
    13326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13327 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13328 val = col.display_value(item) 
    13329 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13331 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13332 val = self.value(instance) 
    13333 ^^^^^^^^^^^^^^^^^^^^ 
    13334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13335 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13336 return self.data_fetch(instance) 
    13337 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13339 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13340 if s.display and s.atoms.displays.any(): 
    13341 ^^^^^^^^^ 
    13342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13343 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13344 return Model.display.fget(self) 
    13345 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13347 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13348 return self._any_displayed_positions and len(self._positions) > 0 
    13349 ^^^^^^^^^^^^^^^^^^^^ 
    13350 TypeError: object of type 'NoneType' has no len() 
    13351  
    13352 TypeError: object of type 'NoneType' has no len() 
    13353  
    13354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13355 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13356 return self._any_displayed_positions and len(self._positions) > 0 
    13357 ^^^^^^^^^^^^^^^^^^^^ 
    13358  
    13359 See log for complete Python traceback. 
    13360  
    13361 Traceback (most recent call last): 
    13362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13363 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13364 val = col.display_value(item) 
    13365 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13367 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13368 val = self.value(instance) 
    13369 ^^^^^^^^^^^^^^^^^^^^ 
    13370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13371 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13372 return self.data_fetch(instance) 
    13373 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13375 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13376 if s.display and s.atoms.displays.any(): 
    13377 ^^^^^^^^^ 
    13378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13379 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13380 return Model.display.fget(self) 
    13381 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13383 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13384 return self._any_displayed_positions and len(self._positions) > 0 
    13385 ^^^^^^^^^^^^^^^^^^^^ 
    13386 TypeError: object of type 'NoneType' has no len() 
    13387  
    13388 TypeError: object of type 'NoneType' has no len() 
    13389  
    13390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13391 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13392 return self._any_displayed_positions and len(self._positions) > 0 
    13393 ^^^^^^^^^^^^^^^^^^^^ 
    13394  
    13395 See log for complete Python traceback. 
    13396  
    13397 Traceback (most recent call last): 
    13398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13399 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13400 val = col.display_value(item) 
    13401 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13403 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13404 val = self.value(instance) 
    13405 ^^^^^^^^^^^^^^^^^^^^ 
    13406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13407 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13408 return self.data_fetch(instance) 
    13409 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13411 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13412 if s.display and s.atoms.displays.any(): 
    13413 ^^^^^^^^^ 
    13414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13415 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13416 return Model.display.fget(self) 
    13417 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13419 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13420 return self._any_displayed_positions and len(self._positions) > 0 
    13421 ^^^^^^^^^^^^^^^^^^^^ 
    13422 TypeError: object of type 'NoneType' has no len() 
    13423  
    13424 TypeError: object of type 'NoneType' has no len() 
    13425  
    13426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13427 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13428 return self._any_displayed_positions and len(self._positions) > 0 
    13429 ^^^^^^^^^^^^^^^^^^^^ 
    13430  
    13431 See log for complete Python traceback. 
    13432  
    13433 Traceback (most recent call last): 
    13434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13435 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13436 val = col.display_value(item) 
    13437 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13439 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13440 val = self.value(instance) 
    13441 ^^^^^^^^^^^^^^^^^^^^ 
    13442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13443 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13444 return self.data_fetch(instance) 
    13445 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13447 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13448 if s.display and s.atoms.displays.any(): 
    13449 ^^^^^^^^^ 
    13450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13451 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13452 return Model.display.fget(self) 
    13453 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13455 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13456 return self._any_displayed_positions and len(self._positions) > 0 
    13457 ^^^^^^^^^^^^^^^^^^^^ 
    13458 TypeError: object of type 'NoneType' has no len() 
    13459  
    13460 TypeError: object of type 'NoneType' has no len() 
    13461  
    13462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13463 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13464 return self._any_displayed_positions and len(self._positions) > 0 
    13465 ^^^^^^^^^^^^^^^^^^^^ 
    13466  
    13467 See log for complete Python traceback. 
    13468  
    13469 Traceback (most recent call last): 
    13470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13471 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13472 val = col.display_value(item) 
    13473 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13475 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13476 val = self.value(instance) 
    13477 ^^^^^^^^^^^^^^^^^^^^ 
    13478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13479 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13480 return self.data_fetch(instance) 
    13481 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13483 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13484 if s.display and s.atoms.displays.any(): 
    13485 ^^^^^^^^^ 
    13486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13487 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13488 return Model.display.fget(self) 
    13489 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13491 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13492 return self._any_displayed_positions and len(self._positions) > 0 
    13493 ^^^^^^^^^^^^^^^^^^^^ 
    13494 TypeError: object of type 'NoneType' has no len() 
    13495  
    13496 TypeError: object of type 'NoneType' has no len() 
    13497  
    13498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13499 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13500 return self._any_displayed_positions and len(self._positions) > 0 
    13501 ^^^^^^^^^^^^^^^^^^^^ 
    13502  
    13503 See log for complete Python traceback. 
    13504  
    13505 Traceback (most recent call last): 
    13506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13507 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13508 val = col.display_value(item) 
    13509 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13511 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13512 val = self.value(instance) 
    13513 ^^^^^^^^^^^^^^^^^^^^ 
    13514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13515 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13516 return self.data_fetch(instance) 
    13517 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13519 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13520 if s.display and s.atoms.displays.any(): 
    13521 ^^^^^^^^^ 
    13522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13523 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13524 return Model.display.fget(self) 
    13525 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13527 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13528 return self._any_displayed_positions and len(self._positions) > 0 
    13529 ^^^^^^^^^^^^^^^^^^^^ 
    13530 TypeError: object of type 'NoneType' has no len() 
    13531  
    13532 TypeError: object of type 'NoneType' has no len() 
    13533  
    13534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13535 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13536 return self._any_displayed_positions and len(self._positions) > 0 
    13537 ^^^^^^^^^^^^^^^^^^^^ 
    13538  
    13539 See log for complete Python traceback. 
    13540  
    13541 Traceback (most recent call last): 
    13542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13543 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13544 val = col.display_value(item) 
    13545 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13547 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13548 val = self.value(instance) 
    13549 ^^^^^^^^^^^^^^^^^^^^ 
    13550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13551 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13552 return self.data_fetch(instance) 
    13553 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13555 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13556 if s.display and s.atoms.displays.any(): 
    13557 ^^^^^^^^^ 
    13558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13559 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13560 return Model.display.fget(self) 
    13561 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13563 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13564 return self._any_displayed_positions and len(self._positions) > 0 
    13565 ^^^^^^^^^^^^^^^^^^^^ 
    13566 TypeError: object of type 'NoneType' has no len() 
    13567  
    13568 TypeError: object of type 'NoneType' has no len() 
    13569  
    13570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13571 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13572 return self._any_displayed_positions and len(self._positions) > 0 
    13573 ^^^^^^^^^^^^^^^^^^^^ 
    13574  
    13575 See log for complete Python traceback. 
    13576  
    13577 Traceback (most recent call last): 
    13578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13579 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13580 val = col.display_value(item) 
    13581 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13583 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13584 val = self.value(instance) 
    13585 ^^^^^^^^^^^^^^^^^^^^ 
    13586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13587 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13588 return self.data_fetch(instance) 
    13589 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13591 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13592 if s.display and s.atoms.displays.any(): 
    13593 ^^^^^^^^^ 
    13594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13595 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13596 return Model.display.fget(self) 
    13597 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13599 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13600 return self._any_displayed_positions and len(self._positions) > 0 
    13601 ^^^^^^^^^^^^^^^^^^^^ 
    13602 TypeError: object of type 'NoneType' has no len() 
    13603  
    13604 TypeError: object of type 'NoneType' has no len() 
    13605  
    13606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13607 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13608 return self._any_displayed_positions and len(self._positions) > 0 
    13609 ^^^^^^^^^^^^^^^^^^^^ 
    13610  
    13611 See log for complete Python traceback. 
    13612  
    13613 Traceback (most recent call last): 
    13614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13615 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13616 val = col.display_value(item) 
    13617 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13619 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13620 val = self.value(instance) 
    13621 ^^^^^^^^^^^^^^^^^^^^ 
    13622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13623 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13624 return self.data_fetch(instance) 
    13625 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13627 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13628 if s.display and s.atoms.displays.any(): 
    13629 ^^^^^^^^^ 
    13630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13631 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13632 return Model.display.fget(self) 
    13633 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13635 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13636 return self._any_displayed_positions and len(self._positions) > 0 
    13637 ^^^^^^^^^^^^^^^^^^^^ 
    13638 TypeError: object of type 'NoneType' has no len() 
    13639  
    13640 TypeError: object of type 'NoneType' has no len() 
    13641  
    13642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13643 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13644 return self._any_displayed_positions and len(self._positions) > 0 
    13645 ^^^^^^^^^^^^^^^^^^^^ 
    13646  
    13647 See log for complete Python traceback. 
    13648  
    13649 Traceback (most recent call last): 
    13650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13651 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13652 val = col.display_value(item) 
    13653 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13655 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13656 val = self.value(instance) 
    13657 ^^^^^^^^^^^^^^^^^^^^ 
    13658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13659 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13660 return self.data_fetch(instance) 
    13661 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13663 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13664 if s.display and s.atoms.displays.any(): 
    13665 ^^^^^^^^^ 
    13666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13667 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13668 return Model.display.fget(self) 
    13669 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13671 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13672 return self._any_displayed_positions and len(self._positions) > 0 
    13673 ^^^^^^^^^^^^^^^^^^^^ 
    13674 TypeError: object of type 'NoneType' has no len() 
    13675  
    13676 TypeError: object of type 'NoneType' has no len() 
    13677  
    13678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13679 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13680 return self._any_displayed_positions and len(self._positions) > 0 
    13681 ^^^^^^^^^^^^^^^^^^^^ 
    13682  
    13683 See log for complete Python traceback. 
    13684  
    13685 Traceback (most recent call last): 
    13686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13687 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13688 val = col.display_value(item) 
    13689 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13691 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13692 val = self.value(instance) 
    13693 ^^^^^^^^^^^^^^^^^^^^ 
    13694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13695 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13696 return self.data_fetch(instance) 
    13697 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13699 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13700 if s.display and s.atoms.displays.any(): 
    13701 ^^^^^^^^^ 
    13702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13703 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13704 return Model.display.fget(self) 
    13705 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13707 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13708 return self._any_displayed_positions and len(self._positions) > 0 
    13709 ^^^^^^^^^^^^^^^^^^^^ 
    13710 TypeError: object of type 'NoneType' has no len() 
    13711  
    13712 TypeError: object of type 'NoneType' has no len() 
    13713  
    13714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13715 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13716 return self._any_displayed_positions and len(self._positions) > 0 
    13717 ^^^^^^^^^^^^^^^^^^^^ 
    13718  
    13719 See log for complete Python traceback. 
    13720  
    13721 Traceback (most recent call last): 
    13722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13723 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13724 val = col.display_value(item) 
    13725 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13727 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13728 val = self.value(instance) 
    13729 ^^^^^^^^^^^^^^^^^^^^ 
    13730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13731 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13732 return self.data_fetch(instance) 
    13733 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13735 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13736 if s.display and s.atoms.displays.any(): 
    13737 ^^^^^^^^^ 
    13738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13739 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13740 return Model.display.fget(self) 
    13741 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13743 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13744 return self._any_displayed_positions and len(self._positions) > 0 
    13745 ^^^^^^^^^^^^^^^^^^^^ 
    13746 TypeError: object of type 'NoneType' has no len() 
    13747  
    13748 TypeError: object of type 'NoneType' has no len() 
    13749  
    13750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13751 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13752 return self._any_displayed_positions and len(self._positions) > 0 
    13753 ^^^^^^^^^^^^^^^^^^^^ 
    13754  
    13755 See log for complete Python traceback. 
    13756  
    13757 Traceback (most recent call last): 
    13758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13759 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13760 val = col.display_value(item) 
    13761 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13763 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13764 val = self.value(instance) 
    13765 ^^^^^^^^^^^^^^^^^^^^ 
    13766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13767 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13768 return self.data_fetch(instance) 
    13769 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13771 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13772 if s.display and s.atoms.displays.any(): 
    13773 ^^^^^^^^^ 
    13774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13775 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13776 return Model.display.fget(self) 
    13777 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13779 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13780 return self._any_displayed_positions and len(self._positions) > 0 
    13781 ^^^^^^^^^^^^^^^^^^^^ 
    13782 TypeError: object of type 'NoneType' has no len() 
    13783  
    13784 TypeError: object of type 'NoneType' has no len() 
    13785  
    13786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13787 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13788 return self._any_displayed_positions and len(self._positions) > 0 
    13789 ^^^^^^^^^^^^^^^^^^^^ 
    13790  
    13791 See log for complete Python traceback. 
    13792  
    13793 Traceback (most recent call last): 
    13794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13795 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13796 val = col.display_value(item) 
    13797 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13799 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13800 val = self.value(instance) 
    13801 ^^^^^^^^^^^^^^^^^^^^ 
    13802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13803 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13804 return self.data_fetch(instance) 
    13805 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13807 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13808 if s.display and s.atoms.displays.any(): 
    13809 ^^^^^^^^^ 
    13810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13811 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13812 return Model.display.fget(self) 
    13813 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13815 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13816 return self._any_displayed_positions and len(self._positions) > 0 
    13817 ^^^^^^^^^^^^^^^^^^^^ 
    13818 TypeError: object of type 'NoneType' has no len() 
    13819  
    13820 TypeError: object of type 'NoneType' has no len() 
    13821  
    13822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13823 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13824 return self._any_displayed_positions and len(self._positions) > 0 
    13825 ^^^^^^^^^^^^^^^^^^^^ 
    13826  
    13827 See log for complete Python traceback. 
    13828  
    13829 Traceback (most recent call last): 
    13830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13831 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13832 val = col.display_value(item) 
    13833 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13835 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13836 val = self.value(instance) 
    13837 ^^^^^^^^^^^^^^^^^^^^ 
    13838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13839 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13840 return self.data_fetch(instance) 
    13841 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13843 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13844 if s.display and s.atoms.displays.any(): 
    13845 ^^^^^^^^^ 
    13846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13847 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13848 return Model.display.fget(self) 
    13849 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13851 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13852 return self._any_displayed_positions and len(self._positions) > 0 
    13853 ^^^^^^^^^^^^^^^^^^^^ 
    13854 TypeError: object of type 'NoneType' has no len() 
    13855  
    13856 TypeError: object of type 'NoneType' has no len() 
    13857  
    13858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13859 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13860 return self._any_displayed_positions and len(self._positions) > 0 
    13861 ^^^^^^^^^^^^^^^^^^^^ 
    13862  
    13863 See log for complete Python traceback. 
    13864  
    13865 Traceback (most recent call last): 
    13866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13867 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13868 val = col.display_value(item) 
    13869 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13871 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13872 val = self.value(instance) 
    13873 ^^^^^^^^^^^^^^^^^^^^ 
    13874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13875 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13876 return self.data_fetch(instance) 
    13877 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13879 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13880 if s.display and s.atoms.displays.any(): 
    13881 ^^^^^^^^^ 
    13882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13883 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13884 return Model.display.fget(self) 
    13885 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13887 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13888 return self._any_displayed_positions and len(self._positions) > 0 
    13889 ^^^^^^^^^^^^^^^^^^^^ 
    13890 TypeError: object of type 'NoneType' has no len() 
    13891  
    13892 TypeError: object of type 'NoneType' has no len() 
    13893  
    13894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13895 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13896 return self._any_displayed_positions and len(self._positions) > 0 
    13897 ^^^^^^^^^^^^^^^^^^^^ 
    13898  
    13899 See log for complete Python traceback. 
    13900  
    13901 Traceback (most recent call last): 
    13902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13903 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13904 val = col.display_value(item) 
    13905 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13907 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13908 val = self.value(instance) 
    13909 ^^^^^^^^^^^^^^^^^^^^ 
    13910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13911 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13912 return self.data_fetch(instance) 
    13913 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13915 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13916 if s.display and s.atoms.displays.any(): 
    13917 ^^^^^^^^^ 
    13918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13919 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13920 return Model.display.fget(self) 
    13921 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13923 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13924 return self._any_displayed_positions and len(self._positions) > 0 
    13925 ^^^^^^^^^^^^^^^^^^^^ 
    13926 TypeError: object of type 'NoneType' has no len() 
    13927  
    13928 TypeError: object of type 'NoneType' has no len() 
    13929  
    13930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13931 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13932 return self._any_displayed_positions and len(self._positions) > 0 
    13933 ^^^^^^^^^^^^^^^^^^^^ 
    13934  
    13935 See log for complete Python traceback. 
    13936  
    13937 Traceback (most recent call last): 
    13938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13939 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13940 val = col.display_value(item) 
    13941 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13943 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13944 val = self.value(instance) 
    13945 ^^^^^^^^^^^^^^^^^^^^ 
    13946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13947 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13948 return self.data_fetch(instance) 
    13949 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13951 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13952 if s.display and s.atoms.displays.any(): 
    13953 ^^^^^^^^^ 
    13954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13955 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13956 return Model.display.fget(self) 
    13957 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13959 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13960 return self._any_displayed_positions and len(self._positions) > 0 
    13961 ^^^^^^^^^^^^^^^^^^^^ 
    13962 TypeError: object of type 'NoneType' has no len() 
    13963  
    13964 TypeError: object of type 'NoneType' has no len() 
    13965  
    13966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13967 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13968 return self._any_displayed_positions and len(self._positions) > 0 
    13969 ^^^^^^^^^^^^^^^^^^^^ 
    13970  
    13971 See log for complete Python traceback. 
    13972  
    13973 Traceback (most recent call last): 
    13974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13975 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    13976 val = col.display_value(item) 
    13977 ^^^^^^^^^^^^^^^^^^^^^^^ 
    13978 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13979 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    13980 val = self.value(instance) 
    13981 ^^^^^^^^^^^^^^^^^^^^ 
    13982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13983 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    13984 return self.data_fetch(instance) 
    13985 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    13986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13987 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    13988 if s.display and s.atoms.displays.any(): 
    13989 ^^^^^^^^^ 
    13990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13991 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    13992 return Model.display.fget(self) 
    13993 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    13994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    13995 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    13996 return self._any_displayed_positions and len(self._positions) > 0 
    13997 ^^^^^^^^^^^^^^^^^^^^ 
    13998 TypeError: object of type 'NoneType' has no len() 
    13999  
    14000 TypeError: object of type 'NoneType' has no len() 
    14001  
    14002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14003 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14004 return self._any_displayed_positions and len(self._positions) > 0 
    14005 ^^^^^^^^^^^^^^^^^^^^ 
    14006  
    14007 See log for complete Python traceback. 
    14008  
    14009 Traceback (most recent call last): 
    14010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14011 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14012 val = col.display_value(item) 
    14013 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14014 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14015 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14016 val = self.value(instance) 
    14017 ^^^^^^^^^^^^^^^^^^^^ 
    14018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14019 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14020 return self.data_fetch(instance) 
    14021 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14023 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14024 if s.display and s.atoms.displays.any(): 
    14025 ^^^^^^^^^ 
    14026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14027 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14028 return Model.display.fget(self) 
    14029 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14031 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14032 return self._any_displayed_positions and len(self._positions) > 0 
    14033 ^^^^^^^^^^^^^^^^^^^^ 
    14034 TypeError: object of type 'NoneType' has no len() 
    14035  
    14036 TypeError: object of type 'NoneType' has no len() 
    14037  
    14038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14039 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14040 return self._any_displayed_positions and len(self._positions) > 0 
    14041 ^^^^^^^^^^^^^^^^^^^^ 
    14042  
    14043 See log for complete Python traceback. 
    14044  
    14045 Traceback (most recent call last): 
    14046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14047 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14048 val = col.display_value(item) 
    14049 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14050 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14051 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14052 val = self.value(instance) 
    14053 ^^^^^^^^^^^^^^^^^^^^ 
    14054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14055 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14056 return self.data_fetch(instance) 
    14057 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14059 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14060 if s.display and s.atoms.displays.any(): 
    14061 ^^^^^^^^^ 
    14062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14063 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14064 return Model.display.fget(self) 
    14065 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14067 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14068 return self._any_displayed_positions and len(self._positions) > 0 
    14069 ^^^^^^^^^^^^^^^^^^^^ 
    14070 TypeError: object of type 'NoneType' has no len() 
    14071  
    14072 TypeError: object of type 'NoneType' has no len() 
    14073  
    14074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14075 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14076 return self._any_displayed_positions and len(self._positions) > 0 
    14077 ^^^^^^^^^^^^^^^^^^^^ 
    14078  
    14079 See log for complete Python traceback. 
    14080  
    14081 Traceback (most recent call last): 
    14082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14083 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14084 val = col.display_value(item) 
    14085 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14086 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14087 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14088 val = self.value(instance) 
    14089 ^^^^^^^^^^^^^^^^^^^^ 
    14090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14091 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14092 return self.data_fetch(instance) 
    14093 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14095 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14096 if s.display and s.atoms.displays.any(): 
    14097 ^^^^^^^^^ 
    14098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14099 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14100 return Model.display.fget(self) 
    14101 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14103 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14104 return self._any_displayed_positions and len(self._positions) > 0 
    14105 ^^^^^^^^^^^^^^^^^^^^ 
    14106 TypeError: object of type 'NoneType' has no len() 
    14107  
    14108 TypeError: object of type 'NoneType' has no len() 
    14109  
    14110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14111 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14112 return self._any_displayed_positions and len(self._positions) > 0 
    14113 ^^^^^^^^^^^^^^^^^^^^ 
    14114  
    14115 See log for complete Python traceback. 
    14116  
    14117 Traceback (most recent call last): 
    14118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14119 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14120 val = col.display_value(item) 
    14121 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14122 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14123 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14124 val = self.value(instance) 
    14125 ^^^^^^^^^^^^^^^^^^^^ 
    14126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14127 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14128 return self.data_fetch(instance) 
    14129 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14131 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14132 if s.display and s.atoms.displays.any(): 
    14133 ^^^^^^^^^ 
    14134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14135 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14136 return Model.display.fget(self) 
    14137 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14139 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14140 return self._any_displayed_positions and len(self._positions) > 0 
    14141 ^^^^^^^^^^^^^^^^^^^^ 
    14142 TypeError: object of type 'NoneType' has no len() 
    14143  
    14144 TypeError: object of type 'NoneType' has no len() 
    14145  
    14146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14147 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14148 return self._any_displayed_positions and len(self._positions) > 0 
    14149 ^^^^^^^^^^^^^^^^^^^^ 
    14150  
    14151 See log for complete Python traceback. 
    14152  
    14153 Traceback (most recent call last): 
    14154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14155 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14156 val = col.display_value(item) 
    14157 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14158 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14159 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14160 val = self.value(instance) 
    14161 ^^^^^^^^^^^^^^^^^^^^ 
    14162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14163 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14164 return self.data_fetch(instance) 
    14165 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14167 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14168 if s.display and s.atoms.displays.any(): 
    14169 ^^^^^^^^^ 
    14170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14171 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14172 return Model.display.fget(self) 
    14173 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14175 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14176 return self._any_displayed_positions and len(self._positions) > 0 
    14177 ^^^^^^^^^^^^^^^^^^^^ 
    14178 TypeError: object of type 'NoneType' has no len() 
    14179  
    14180 TypeError: object of type 'NoneType' has no len() 
    14181  
    14182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14183 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14184 return self._any_displayed_positions and len(self._positions) > 0 
    14185 ^^^^^^^^^^^^^^^^^^^^ 
    14186  
    14187 See log for complete Python traceback. 
    14188  
    14189 Traceback (most recent call last): 
    14190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14191 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14192 val = col.display_value(item) 
    14193 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14194 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14195 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14196 val = self.value(instance) 
    14197 ^^^^^^^^^^^^^^^^^^^^ 
    14198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14199 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14200 return self.data_fetch(instance) 
    14201 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14203 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14204 if s.display and s.atoms.displays.any(): 
    14205 ^^^^^^^^^ 
    14206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14207 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14208 return Model.display.fget(self) 
    14209 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14211 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14212 return self._any_displayed_positions and len(self._positions) > 0 
    14213 ^^^^^^^^^^^^^^^^^^^^ 
    14214 TypeError: object of type 'NoneType' has no len() 
    14215  
    14216 TypeError: object of type 'NoneType' has no len() 
    14217  
    14218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14219 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14220 return self._any_displayed_positions and len(self._positions) > 0 
    14221 ^^^^^^^^^^^^^^^^^^^^ 
    14222  
    14223 See log for complete Python traceback. 
    14224  
    14225 Traceback (most recent call last): 
    14226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14227 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14228 val = col.display_value(item) 
    14229 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14230 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14231 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14232 val = self.value(instance) 
    14233 ^^^^^^^^^^^^^^^^^^^^ 
    14234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14235 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14236 return self.data_fetch(instance) 
    14237 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14239 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14240 if s.display and s.atoms.displays.any(): 
    14241 ^^^^^^^^^ 
    14242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14243 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14244 return Model.display.fget(self) 
    14245 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14247 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14248 return self._any_displayed_positions and len(self._positions) > 0 
    14249 ^^^^^^^^^^^^^^^^^^^^ 
    14250 TypeError: object of type 'NoneType' has no len() 
    14251  
    14252 TypeError: object of type 'NoneType' has no len() 
    14253  
    14254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14255 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14256 return self._any_displayed_positions and len(self._positions) > 0 
    14257 ^^^^^^^^^^^^^^^^^^^^ 
    14258  
    14259 See log for complete Python traceback. 
    14260  
    14261 Traceback (most recent call last): 
    14262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14263 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14264 val = col.display_value(item) 
    14265 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14266 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14267 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14268 val = self.value(instance) 
    14269 ^^^^^^^^^^^^^^^^^^^^ 
    14270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14271 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14272 return self.data_fetch(instance) 
    14273 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14275 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14276 if s.display and s.atoms.displays.any(): 
    14277 ^^^^^^^^^ 
    14278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14279 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14280 return Model.display.fget(self) 
    14281 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14283 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14284 return self._any_displayed_positions and len(self._positions) > 0 
    14285 ^^^^^^^^^^^^^^^^^^^^ 
    14286 TypeError: object of type 'NoneType' has no len() 
    14287  
    14288 TypeError: object of type 'NoneType' has no len() 
    14289  
    14290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14291 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14292 return self._any_displayed_positions and len(self._positions) > 0 
    14293 ^^^^^^^^^^^^^^^^^^^^ 
    14294  
    14295 See log for complete Python traceback. 
    14296  
    14297 Traceback (most recent call last): 
    14298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14299 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14300 val = col.display_value(item) 
    14301 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14302 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14303 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14304 val = self.value(instance) 
    14305 ^^^^^^^^^^^^^^^^^^^^ 
    14306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14307 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14308 return self.data_fetch(instance) 
    14309 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14311 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14312 if s.display and s.atoms.displays.any(): 
    14313 ^^^^^^^^^ 
    14314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14315 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14316 return Model.display.fget(self) 
    14317 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14319 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14320 return self._any_displayed_positions and len(self._positions) > 0 
    14321 ^^^^^^^^^^^^^^^^^^^^ 
    14322 TypeError: object of type 'NoneType' has no len() 
    14323  
    14324 TypeError: object of type 'NoneType' has no len() 
    14325  
    14326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14327 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14328 return self._any_displayed_positions and len(self._positions) > 0 
    14329 ^^^^^^^^^^^^^^^^^^^^ 
    14330  
    14331 See log for complete Python traceback. 
    14332  
    14333 Traceback (most recent call last): 
    14334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14335 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14336 val = col.display_value(item) 
    14337 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14338 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14339 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14340 val = self.value(instance) 
    14341 ^^^^^^^^^^^^^^^^^^^^ 
    14342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14343 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14344 return self.data_fetch(instance) 
    14345 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14347 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14348 if s.display and s.atoms.displays.any(): 
    14349 ^^^^^^^^^ 
    14350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14351 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14352 return Model.display.fget(self) 
    14353 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14355 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14356 return self._any_displayed_positions and len(self._positions) > 0 
    14357 ^^^^^^^^^^^^^^^^^^^^ 
    14358 TypeError: object of type 'NoneType' has no len() 
    14359  
    14360 TypeError: object of type 'NoneType' has no len() 
    14361  
    14362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14363 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14364 return self._any_displayed_positions and len(self._positions) > 0 
    14365 ^^^^^^^^^^^^^^^^^^^^ 
    14366  
    14367 See log for complete Python traceback. 
    14368  
    14369 Traceback (most recent call last): 
    14370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14371 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14372 val = col.display_value(item) 
    14373 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14374 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14375 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14376 val = self.value(instance) 
    14377 ^^^^^^^^^^^^^^^^^^^^ 
    14378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14379 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14380 return self.data_fetch(instance) 
    14381 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14383 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14384 if s.display and s.atoms.displays.any(): 
    14385 ^^^^^^^^^ 
    14386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14387 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14388 return Model.display.fget(self) 
    14389 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14391 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14392 return self._any_displayed_positions and len(self._positions) > 0 
    14393 ^^^^^^^^^^^^^^^^^^^^ 
    14394 TypeError: object of type 'NoneType' has no len() 
    14395  
    14396 TypeError: object of type 'NoneType' has no len() 
    14397  
    14398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14399 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14400 return self._any_displayed_positions and len(self._positions) > 0 
    14401 ^^^^^^^^^^^^^^^^^^^^ 
    14402  
    14403 See log for complete Python traceback. 
    14404  
    14405 Traceback (most recent call last): 
    14406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14407 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14408 val = col.display_value(item) 
    14409 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14410 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14411 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14412 val = self.value(instance) 
    14413 ^^^^^^^^^^^^^^^^^^^^ 
    14414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14415 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14416 return self.data_fetch(instance) 
    14417 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14419 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14420 if s.display and s.atoms.displays.any(): 
    14421 ^^^^^^^^^ 
    14422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14423 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14424 return Model.display.fget(self) 
    14425 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14427 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14428 return self._any_displayed_positions and len(self._positions) > 0 
    14429 ^^^^^^^^^^^^^^^^^^^^ 
    14430 TypeError: object of type 'NoneType' has no len() 
    14431  
    14432 TypeError: object of type 'NoneType' has no len() 
    14433  
    14434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14435 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14436 return self._any_displayed_positions and len(self._positions) > 0 
    14437 ^^^^^^^^^^^^^^^^^^^^ 
    14438  
    14439 See log for complete Python traceback. 
    14440  
    14441 Traceback (most recent call last): 
    14442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14443 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14444 val = col.display_value(item) 
    14445 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14446 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14447 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14448 val = self.value(instance) 
    14449 ^^^^^^^^^^^^^^^^^^^^ 
    14450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14451 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14452 return self.data_fetch(instance) 
    14453 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14455 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14456 if s.display and s.atoms.displays.any(): 
    14457 ^^^^^^^^^ 
    14458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14459 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14460 return Model.display.fget(self) 
    14461 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14463 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14464 return self._any_displayed_positions and len(self._positions) > 0 
    14465 ^^^^^^^^^^^^^^^^^^^^ 
    14466 TypeError: object of type 'NoneType' has no len() 
    14467  
    14468 TypeError: object of type 'NoneType' has no len() 
    14469  
    14470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14471 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14472 return self._any_displayed_positions and len(self._positions) > 0 
    14473 ^^^^^^^^^^^^^^^^^^^^ 
    14474  
    14475 See log for complete Python traceback. 
    14476  
    14477 Traceback (most recent call last): 
    14478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14479 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14480 val = col.display_value(item) 
    14481 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14482 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14483 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14484 val = self.value(instance) 
    14485 ^^^^^^^^^^^^^^^^^^^^ 
    14486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14487 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14488 return self.data_fetch(instance) 
    14489 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14491 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14492 if s.display and s.atoms.displays.any(): 
    14493 ^^^^^^^^^ 
    14494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14495 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14496 return Model.display.fget(self) 
    14497 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14499 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14500 return self._any_displayed_positions and len(self._positions) > 0 
    14501 ^^^^^^^^^^^^^^^^^^^^ 
    14502 TypeError: object of type 'NoneType' has no len() 
    14503  
    14504 TypeError: object of type 'NoneType' has no len() 
    14505  
    14506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14507 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14508 return self._any_displayed_positions and len(self._positions) > 0 
    14509 ^^^^^^^^^^^^^^^^^^^^ 
    14510  
    14511 See log for complete Python traceback. 
    14512  
    14513 Traceback (most recent call last): 
    14514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14515 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14516 val = col.display_value(item) 
    14517 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14518 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14519 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14520 val = self.value(instance) 
    14521 ^^^^^^^^^^^^^^^^^^^^ 
    14522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14523 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14524 return self.data_fetch(instance) 
    14525 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14527 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14528 if s.display and s.atoms.displays.any(): 
    14529 ^^^^^^^^^ 
    14530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14531 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14532 return Model.display.fget(self) 
    14533 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14535 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14536 return self._any_displayed_positions and len(self._positions) > 0 
    14537 ^^^^^^^^^^^^^^^^^^^^ 
    14538 TypeError: object of type 'NoneType' has no len() 
    14539  
    14540 TypeError: object of type 'NoneType' has no len() 
    14541  
    14542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14543 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14544 return self._any_displayed_positions and len(self._positions) > 0 
    14545 ^^^^^^^^^^^^^^^^^^^^ 
    14546  
    14547 See log for complete Python traceback. 
    14548  
    14549 Traceback (most recent call last): 
    14550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14551 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14552 val = col.display_value(item) 
    14553 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14554 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14555 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14556 val = self.value(instance) 
    14557 ^^^^^^^^^^^^^^^^^^^^ 
    14558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14559 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14560 return self.data_fetch(instance) 
    14561 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14563 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14564 if s.display and s.atoms.displays.any(): 
    14565 ^^^^^^^^^ 
    14566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14567 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14568 return Model.display.fget(self) 
    14569 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14571 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14572 return self._any_displayed_positions and len(self._positions) > 0 
    14573 ^^^^^^^^^^^^^^^^^^^^ 
    14574 TypeError: object of type 'NoneType' has no len() 
    14575  
    14576 TypeError: object of type 'NoneType' has no len() 
    14577  
    14578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14579 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14580 return self._any_displayed_positions and len(self._positions) > 0 
    14581 ^^^^^^^^^^^^^^^^^^^^ 
    14582  
    14583 See log for complete Python traceback. 
    14584  
    14585 Traceback (most recent call last): 
    14586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14587 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14588 val = col.display_value(item) 
    14589 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14590 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14591 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14592 val = self.value(instance) 
    14593 ^^^^^^^^^^^^^^^^^^^^ 
    14594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14595 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14596 return self.data_fetch(instance) 
    14597 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14599 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14600 if s.display and s.atoms.displays.any(): 
    14601 ^^^^^^^^^ 
    14602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14603 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14604 return Model.display.fget(self) 
    14605 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14607 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14608 return self._any_displayed_positions and len(self._positions) > 0 
    14609 ^^^^^^^^^^^^^^^^^^^^ 
    14610 TypeError: object of type 'NoneType' has no len() 
    14611  
    14612 TypeError: object of type 'NoneType' has no len() 
    14613  
    14614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14615 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14616 return self._any_displayed_positions and len(self._positions) > 0 
    14617 ^^^^^^^^^^^^^^^^^^^^ 
    14618  
    14619 See log for complete Python traceback. 
    14620  
    14621 Traceback (most recent call last): 
    14622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14623 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14624 val = col.display_value(item) 
    14625 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14626 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14627 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14628 val = self.value(instance) 
    14629 ^^^^^^^^^^^^^^^^^^^^ 
    14630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14631 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14632 return self.data_fetch(instance) 
    14633 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14635 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14636 if s.display and s.atoms.displays.any(): 
    14637 ^^^^^^^^^ 
    14638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14639 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14640 return Model.display.fget(self) 
    14641 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14643 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14644 return self._any_displayed_positions and len(self._positions) > 0 
    14645 ^^^^^^^^^^^^^^^^^^^^ 
    14646 TypeError: object of type 'NoneType' has no len() 
    14647  
    14648 TypeError: object of type 'NoneType' has no len() 
    14649  
    14650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14651 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14652 return self._any_displayed_positions and len(self._positions) > 0 
    14653 ^^^^^^^^^^^^^^^^^^^^ 
    14654  
    14655 See log for complete Python traceback. 
    14656  
    14657 Traceback (most recent call last): 
    14658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14659 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14660 val = col.display_value(item) 
    14661 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14662 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14663 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14664 val = self.value(instance) 
    14665 ^^^^^^^^^^^^^^^^^^^^ 
    14666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14667 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14668 return self.data_fetch(instance) 
    14669 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14671 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14672 if s.display and s.atoms.displays.any(): 
    14673 ^^^^^^^^^ 
    14674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14675 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14676 return Model.display.fget(self) 
    14677 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14679 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14680 return self._any_displayed_positions and len(self._positions) > 0 
    14681 ^^^^^^^^^^^^^^^^^^^^ 
    14682 TypeError: object of type 'NoneType' has no len() 
    14683  
    14684 TypeError: object of type 'NoneType' has no len() 
    14685  
    14686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14687 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14688 return self._any_displayed_positions and len(self._positions) > 0 
    14689 ^^^^^^^^^^^^^^^^^^^^ 
    14690  
    14691 See log for complete Python traceback. 
    14692  
    14693 Traceback (most recent call last): 
    14694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14695 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14696 val = col.display_value(item) 
    14697 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14698 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14699 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14700 val = self.value(instance) 
    14701 ^^^^^^^^^^^^^^^^^^^^ 
    14702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14703 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14704 return self.data_fetch(instance) 
    14705 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14707 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14708 if s.display and s.atoms.displays.any(): 
    14709 ^^^^^^^^^ 
    14710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14711 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14712 return Model.display.fget(self) 
    14713 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14715 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14716 return self._any_displayed_positions and len(self._positions) > 0 
    14717 ^^^^^^^^^^^^^^^^^^^^ 
    14718 TypeError: object of type 'NoneType' has no len() 
    14719  
    14720 TypeError: object of type 'NoneType' has no len() 
    14721  
    14722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14723 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14724 return self._any_displayed_positions and len(self._positions) > 0 
    14725 ^^^^^^^^^^^^^^^^^^^^ 
    14726  
    14727 See log for complete Python traceback. 
    14728  
    14729 Traceback (most recent call last): 
    14730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14731 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14732 val = col.display_value(item) 
    14733 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14734 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14735 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14736 val = self.value(instance) 
    14737 ^^^^^^^^^^^^^^^^^^^^ 
    14738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14739 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14740 return self.data_fetch(instance) 
    14741 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14743 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14744 if s.display and s.atoms.displays.any(): 
    14745 ^^^^^^^^^ 
    14746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14747 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14748 return Model.display.fget(self) 
    14749 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14751 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14752 return self._any_displayed_positions and len(self._positions) > 0 
    14753 ^^^^^^^^^^^^^^^^^^^^ 
    14754 TypeError: object of type 'NoneType' has no len() 
    14755  
    14756 TypeError: object of type 'NoneType' has no len() 
    14757  
    14758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14759 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14760 return self._any_displayed_positions and len(self._positions) > 0 
    14761 ^^^^^^^^^^^^^^^^^^^^ 
    14762  
    14763 See log for complete Python traceback. 
    14764  
    14765 Traceback (most recent call last): 
    14766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14767 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14768 val = col.display_value(item) 
    14769 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14770 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14771 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14772 val = self.value(instance) 
    14773 ^^^^^^^^^^^^^^^^^^^^ 
    14774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14775 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14776 return self.data_fetch(instance) 
    14777 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14779 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14780 if s.display and s.atoms.displays.any(): 
    14781 ^^^^^^^^^ 
    14782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14783 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14784 return Model.display.fget(self) 
    14785 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14787 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14788 return self._any_displayed_positions and len(self._positions) > 0 
    14789 ^^^^^^^^^^^^^^^^^^^^ 
    14790 TypeError: object of type 'NoneType' has no len() 
    14791  
    14792 TypeError: object of type 'NoneType' has no len() 
    14793  
    14794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14795 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14796 return self._any_displayed_positions and len(self._positions) > 0 
    14797 ^^^^^^^^^^^^^^^^^^^^ 
    14798  
    14799 See log for complete Python traceback. 
    14800  
    14801 Traceback (most recent call last): 
    14802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14803 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14804 val = col.display_value(item) 
    14805 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14806 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14807 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14808 val = self.value(instance) 
    14809 ^^^^^^^^^^^^^^^^^^^^ 
    14810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14811 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14812 return self.data_fetch(instance) 
    14813 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14815 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14816 if s.display and s.atoms.displays.any(): 
    14817 ^^^^^^^^^ 
    14818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14819 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14820 return Model.display.fget(self) 
    14821 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14823 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14824 return self._any_displayed_positions and len(self._positions) > 0 
    14825 ^^^^^^^^^^^^^^^^^^^^ 
    14826 TypeError: object of type 'NoneType' has no len() 
    14827  
    14828 TypeError: object of type 'NoneType' has no len() 
    14829  
    14830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14831 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14832 return self._any_displayed_positions and len(self._positions) > 0 
    14833 ^^^^^^^^^^^^^^^^^^^^ 
    14834  
    14835 See log for complete Python traceback. 
    14836  
    14837 Traceback (most recent call last): 
    14838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14839 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14840 val = col.display_value(item) 
    14841 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14842 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14843 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14844 val = self.value(instance) 
    14845 ^^^^^^^^^^^^^^^^^^^^ 
    14846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14847 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14848 return self.data_fetch(instance) 
    14849 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14851 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14852 if s.display and s.atoms.displays.any(): 
    14853 ^^^^^^^^^ 
    14854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14855 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14856 return Model.display.fget(self) 
    14857 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14859 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14860 return self._any_displayed_positions and len(self._positions) > 0 
    14861 ^^^^^^^^^^^^^^^^^^^^ 
    14862 TypeError: object of type 'NoneType' has no len() 
    14863  
    14864 TypeError: object of type 'NoneType' has no len() 
    14865  
    14866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14867 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14868 return self._any_displayed_positions and len(self._positions) > 0 
    14869 ^^^^^^^^^^^^^^^^^^^^ 
    14870  
    14871 See log for complete Python traceback. 
    14872  
    14873 Traceback (most recent call last): 
    14874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14875 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14876 val = col.display_value(item) 
    14877 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14878 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14879 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14880 val = self.value(instance) 
    14881 ^^^^^^^^^^^^^^^^^^^^ 
    14882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14883 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14884 return self.data_fetch(instance) 
    14885 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14887 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14888 if s.display and s.atoms.displays.any(): 
    14889 ^^^^^^^^^ 
    14890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14891 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14892 return Model.display.fget(self) 
    14893 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14895 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14896 return self._any_displayed_positions and len(self._positions) > 0 
    14897 ^^^^^^^^^^^^^^^^^^^^ 
    14898 TypeError: object of type 'NoneType' has no len() 
    14899  
    14900 TypeError: object of type 'NoneType' has no len() 
    14901  
    14902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14903 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14904 return self._any_displayed_positions and len(self._positions) > 0 
    14905 ^^^^^^^^^^^^^^^^^^^^ 
    14906  
    14907 See log for complete Python traceback. 
    14908  
    14909 Traceback (most recent call last): 
    14910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14911 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14912 val = col.display_value(item) 
    14913 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14914 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14915 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14916 val = self.value(instance) 
    14917 ^^^^^^^^^^^^^^^^^^^^ 
    14918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14919 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14920 return self.data_fetch(instance) 
    14921 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14923 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14924 if s.display and s.atoms.displays.any(): 
    14925 ^^^^^^^^^ 
    14926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14927 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14928 return Model.display.fget(self) 
    14929 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14931 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14932 return self._any_displayed_positions and len(self._positions) > 0 
    14933 ^^^^^^^^^^^^^^^^^^^^ 
    14934 TypeError: object of type 'NoneType' has no len() 
    14935  
    14936 TypeError: object of type 'NoneType' has no len() 
    14937  
    14938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14939 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14940 return self._any_displayed_positions and len(self._positions) > 0 
    14941 ^^^^^^^^^^^^^^^^^^^^ 
    14942  
    14943 See log for complete Python traceback. 
    14944  
    14945 Traceback (most recent call last): 
    14946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14947 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14948 val = col.display_value(item) 
    14949 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14950 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14951 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14952 val = self.value(instance) 
    14953 ^^^^^^^^^^^^^^^^^^^^ 
    14954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14955 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14956 return self.data_fetch(instance) 
    14957 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14959 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14960 if s.display and s.atoms.displays.any(): 
    14961 ^^^^^^^^^ 
    14962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14963 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    14964 return Model.display.fget(self) 
    14965 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    14966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14967 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14968 return self._any_displayed_positions and len(self._positions) > 0 
    14969 ^^^^^^^^^^^^^^^^^^^^ 
    14970 TypeError: object of type 'NoneType' has no len() 
    14971  
    14972 TypeError: object of type 'NoneType' has no len() 
    14973  
    14974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14975 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    14976 return self._any_displayed_positions and len(self._positions) > 0 
    14977 ^^^^^^^^^^^^^^^^^^^^ 
    14978  
    14979 See log for complete Python traceback. 
    14980  
    14981 Traceback (most recent call last): 
    14982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14983 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    14984 val = col.display_value(item) 
    14985 ^^^^^^^^^^^^^^^^^^^^^^^ 
    14986 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14987 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    14988 val = self.value(instance) 
    14989 ^^^^^^^^^^^^^^^^^^^^ 
    14990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14991 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    14992 return self.data_fetch(instance) 
    14993 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    14994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14995 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    14996 if s.display and s.atoms.displays.any(): 
    14997 ^^^^^^^^^ 
    14998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    14999 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15000 return Model.display.fget(self) 
    15001 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15003 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15004 return self._any_displayed_positions and len(self._positions) > 0 
    15005 ^^^^^^^^^^^^^^^^^^^^ 
    15006 TypeError: object of type 'NoneType' has no len() 
    15007  
    15008 TypeError: object of type 'NoneType' has no len() 
    15009  
    15010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15011 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15012 return self._any_displayed_positions and len(self._positions) > 0 
    15013 ^^^^^^^^^^^^^^^^^^^^ 
    15014  
    15015 See log for complete Python traceback. 
    15016  
    15017 Traceback (most recent call last): 
    15018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15019 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15020 val = col.display_value(item) 
    15021 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15022 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15023 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15024 val = self.value(instance) 
    15025 ^^^^^^^^^^^^^^^^^^^^ 
    15026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15027 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15028 return self.data_fetch(instance) 
    15029 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15031 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15032 if s.display and s.atoms.displays.any(): 
    15033 ^^^^^^^^^ 
    15034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15035 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15036 return Model.display.fget(self) 
    15037 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15039 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15040 return self._any_displayed_positions and len(self._positions) > 0 
    15041 ^^^^^^^^^^^^^^^^^^^^ 
    15042 TypeError: object of type 'NoneType' has no len() 
    15043  
    15044 TypeError: object of type 'NoneType' has no len() 
    15045  
    15046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15047 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15048 return self._any_displayed_positions and len(self._positions) > 0 
    15049 ^^^^^^^^^^^^^^^^^^^^ 
    15050  
    15051 See log for complete Python traceback. 
    15052  
    15053 Traceback (most recent call last): 
    15054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15055 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15056 val = col.display_value(item) 
    15057 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15058 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15059 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15060 val = self.value(instance) 
    15061 ^^^^^^^^^^^^^^^^^^^^ 
    15062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15063 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15064 return self.data_fetch(instance) 
    15065 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15067 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15068 if s.display and s.atoms.displays.any(): 
    15069 ^^^^^^^^^ 
    15070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15071 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15072 return Model.display.fget(self) 
    15073 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15075 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15076 return self._any_displayed_positions and len(self._positions) > 0 
    15077 ^^^^^^^^^^^^^^^^^^^^ 
    15078 TypeError: object of type 'NoneType' has no len() 
    15079  
    15080 TypeError: object of type 'NoneType' has no len() 
    15081  
    15082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15083 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15084 return self._any_displayed_positions and len(self._positions) > 0 
    15085 ^^^^^^^^^^^^^^^^^^^^ 
    15086  
    15087 See log for complete Python traceback. 
    15088  
    15089 Traceback (most recent call last): 
    15090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15091 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15092 val = col.display_value(item) 
    15093 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15094 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15095 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15096 val = self.value(instance) 
    15097 ^^^^^^^^^^^^^^^^^^^^ 
    15098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15099 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15100 return self.data_fetch(instance) 
    15101 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15103 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15104 if s.display and s.atoms.displays.any(): 
    15105 ^^^^^^^^^ 
    15106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15107 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15108 return Model.display.fget(self) 
    15109 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15111 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15112 return self._any_displayed_positions and len(self._positions) > 0 
    15113 ^^^^^^^^^^^^^^^^^^^^ 
    15114 TypeError: object of type 'NoneType' has no len() 
    15115  
    15116 TypeError: object of type 'NoneType' has no len() 
    15117  
    15118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15119 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15120 return self._any_displayed_positions and len(self._positions) > 0 
    15121 ^^^^^^^^^^^^^^^^^^^^ 
    15122  
    15123 See log for complete Python traceback. 
    15124  
    15125 Traceback (most recent call last): 
    15126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15127 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15128 val = col.display_value(item) 
    15129 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15130 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15131 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15132 val = self.value(instance) 
    15133 ^^^^^^^^^^^^^^^^^^^^ 
    15134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15135 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15136 return self.data_fetch(instance) 
    15137 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15139 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15140 if s.display and s.atoms.displays.any(): 
    15141 ^^^^^^^^^ 
    15142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15143 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15144 return Model.display.fget(self) 
    15145 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15147 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15148 return self._any_displayed_positions and len(self._positions) > 0 
    15149 ^^^^^^^^^^^^^^^^^^^^ 
    15150 TypeError: object of type 'NoneType' has no len() 
    15151  
    15152 TypeError: object of type 'NoneType' has no len() 
    15153  
    15154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15155 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15156 return self._any_displayed_positions and len(self._positions) > 0 
    15157 ^^^^^^^^^^^^^^^^^^^^ 
    15158  
    15159 See log for complete Python traceback. 
    15160  
    15161 Traceback (most recent call last): 
    15162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15163 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15164 val = col.display_value(item) 
    15165 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15166 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15167 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15168 val = self.value(instance) 
    15169 ^^^^^^^^^^^^^^^^^^^^ 
    15170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15171 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15172 return self.data_fetch(instance) 
    15173 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15175 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15176 if s.display and s.atoms.displays.any(): 
    15177 ^^^^^^^^^ 
    15178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15179 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15180 return Model.display.fget(self) 
    15181 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15183 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15184 return self._any_displayed_positions and len(self._positions) > 0 
    15185 ^^^^^^^^^^^^^^^^^^^^ 
    15186 TypeError: object of type 'NoneType' has no len() 
    15187  
    15188 TypeError: object of type 'NoneType' has no len() 
    15189  
    15190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15191 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15192 return self._any_displayed_positions and len(self._positions) > 0 
    15193 ^^^^^^^^^^^^^^^^^^^^ 
    15194  
    15195 See log for complete Python traceback. 
    15196  
    15197 Traceback (most recent call last): 
    15198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15199 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15200 val = col.display_value(item) 
    15201 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15202 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15203 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15204 val = self.value(instance) 
    15205 ^^^^^^^^^^^^^^^^^^^^ 
    15206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15207 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15208 return self.data_fetch(instance) 
    15209 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15211 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15212 if s.display and s.atoms.displays.any(): 
    15213 ^^^^^^^^^ 
    15214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15215 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15216 return Model.display.fget(self) 
    15217 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15219 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15220 return self._any_displayed_positions and len(self._positions) > 0 
    15221 ^^^^^^^^^^^^^^^^^^^^ 
    15222 TypeError: object of type 'NoneType' has no len() 
    15223  
    15224 TypeError: object of type 'NoneType' has no len() 
    15225  
    15226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15227 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15228 return self._any_displayed_positions and len(self._positions) > 0 
    15229 ^^^^^^^^^^^^^^^^^^^^ 
    15230  
    15231 See log for complete Python traceback. 
    15232  
    15233 Traceback (most recent call last): 
    15234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15235 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15236 val = col.display_value(item) 
    15237 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15238 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15239 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15240 val = self.value(instance) 
    15241 ^^^^^^^^^^^^^^^^^^^^ 
    15242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15243 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15244 return self.data_fetch(instance) 
    15245 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15247 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15248 if s.display and s.atoms.displays.any(): 
    15249 ^^^^^^^^^ 
    15250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15251 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15252 return Model.display.fget(self) 
    15253 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15255 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15256 return self._any_displayed_positions and len(self._positions) > 0 
    15257 ^^^^^^^^^^^^^^^^^^^^ 
    15258 TypeError: object of type 'NoneType' has no len() 
    15259  
    15260 TypeError: object of type 'NoneType' has no len() 
    15261  
    15262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15263 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15264 return self._any_displayed_positions and len(self._positions) > 0 
    15265 ^^^^^^^^^^^^^^^^^^^^ 
    15266  
    15267 See log for complete Python traceback. 
    15268  
    15269 Traceback (most recent call last): 
    15270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15271 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15272 val = col.display_value(item) 
    15273 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15274 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15275 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15276 val = self.value(instance) 
    15277 ^^^^^^^^^^^^^^^^^^^^ 
    15278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15279 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15280 return self.data_fetch(instance) 
    15281 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15283 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15284 if s.display and s.atoms.displays.any(): 
    15285 ^^^^^^^^^ 
    15286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15287 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15288 return Model.display.fget(self) 
    15289 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15291 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15292 return self._any_displayed_positions and len(self._positions) > 0 
    15293 ^^^^^^^^^^^^^^^^^^^^ 
    15294 TypeError: object of type 'NoneType' has no len() 
    15295  
    15296 TypeError: object of type 'NoneType' has no len() 
    15297  
    15298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15299 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15300 return self._any_displayed_positions and len(self._positions) > 0 
    15301 ^^^^^^^^^^^^^^^^^^^^ 
    15302  
    15303 See log for complete Python traceback. 
    15304  
    15305 Traceback (most recent call last): 
    15306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15307 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15308 val = col.display_value(item) 
    15309 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15310 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15311 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15312 val = self.value(instance) 
    15313 ^^^^^^^^^^^^^^^^^^^^ 
    15314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15315 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15316 return self.data_fetch(instance) 
    15317 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15319 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15320 if s.display and s.atoms.displays.any(): 
    15321 ^^^^^^^^^ 
    15322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15323 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15324 return Model.display.fget(self) 
    15325 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15327 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15328 return self._any_displayed_positions and len(self._positions) > 0 
    15329 ^^^^^^^^^^^^^^^^^^^^ 
    15330 TypeError: object of type 'NoneType' has no len() 
    15331  
    15332 TypeError: object of type 'NoneType' has no len() 
    15333  
    15334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15335 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15336 return self._any_displayed_positions and len(self._positions) > 0 
    15337 ^^^^^^^^^^^^^^^^^^^^ 
    15338  
    15339 See log for complete Python traceback. 
    15340  
    15341 Traceback (most recent call last): 
    15342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15343 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15344 val = col.display_value(item) 
    15345 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15346 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15347 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15348 val = self.value(instance) 
    15349 ^^^^^^^^^^^^^^^^^^^^ 
    15350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15351 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15352 return self.data_fetch(instance) 
    15353 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15355 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15356 if s.display and s.atoms.displays.any(): 
    15357 ^^^^^^^^^ 
    15358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15359 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15360 return Model.display.fget(self) 
    15361 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15363 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15364 return self._any_displayed_positions and len(self._positions) > 0 
    15365 ^^^^^^^^^^^^^^^^^^^^ 
    15366 TypeError: object of type 'NoneType' has no len() 
    15367  
    15368 TypeError: object of type 'NoneType' has no len() 
    15369  
    15370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15371 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15372 return self._any_displayed_positions and len(self._positions) > 0 
    15373 ^^^^^^^^^^^^^^^^^^^^ 
    15374  
    15375 See log for complete Python traceback. 
    15376  
    15377 Traceback (most recent call last): 
    15378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15379 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15380 val = col.display_value(item) 
    15381 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15382 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15383 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15384 val = self.value(instance) 
    15385 ^^^^^^^^^^^^^^^^^^^^ 
    15386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15387 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15388 return self.data_fetch(instance) 
    15389 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15391 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15392 if s.display and s.atoms.displays.any(): 
    15393 ^^^^^^^^^ 
    15394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15395 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15396 return Model.display.fget(self) 
    15397 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15399 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15400 return self._any_displayed_positions and len(self._positions) > 0 
    15401 ^^^^^^^^^^^^^^^^^^^^ 
    15402 TypeError: object of type 'NoneType' has no len() 
    15403  
    15404 TypeError: object of type 'NoneType' has no len() 
    15405  
    15406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15407 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15408 return self._any_displayed_positions and len(self._positions) > 0 
    15409 ^^^^^^^^^^^^^^^^^^^^ 
    15410  
    15411 See log for complete Python traceback. 
    15412  
    15413 Traceback (most recent call last): 
    15414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15415 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15416 val = col.display_value(item) 
    15417 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15418 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15419 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15420 val = self.value(instance) 
    15421 ^^^^^^^^^^^^^^^^^^^^ 
    15422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15423 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15424 return self.data_fetch(instance) 
    15425 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15427 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15428 if s.display and s.atoms.displays.any(): 
    15429 ^^^^^^^^^ 
    15430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15431 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15432 return Model.display.fget(self) 
    15433 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15435 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15436 return self._any_displayed_positions and len(self._positions) > 0 
    15437 ^^^^^^^^^^^^^^^^^^^^ 
    15438 TypeError: object of type 'NoneType' has no len() 
    15439  
    15440 TypeError: object of type 'NoneType' has no len() 
    15441  
    15442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15443 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15444 return self._any_displayed_positions and len(self._positions) > 0 
    15445 ^^^^^^^^^^^^^^^^^^^^ 
    15446  
    15447 See log for complete Python traceback. 
    15448  
    15449 Traceback (most recent call last): 
    15450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15451 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15452 val = col.display_value(item) 
    15453 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15454 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15455 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15456 val = self.value(instance) 
    15457 ^^^^^^^^^^^^^^^^^^^^ 
    15458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15459 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15460 return self.data_fetch(instance) 
    15461 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15463 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15464 if s.display and s.atoms.displays.any(): 
    15465 ^^^^^^^^^ 
    15466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15467 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15468 return Model.display.fget(self) 
    15469 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15471 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15472 return self._any_displayed_positions and len(self._positions) > 0 
    15473 ^^^^^^^^^^^^^^^^^^^^ 
    15474 TypeError: object of type 'NoneType' has no len() 
    15475  
    15476 TypeError: object of type 'NoneType' has no len() 
    15477  
    15478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15479 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15480 return self._any_displayed_positions and len(self._positions) > 0 
    15481 ^^^^^^^^^^^^^^^^^^^^ 
    15482  
    15483 See log for complete Python traceback. 
    15484  
    15485 Traceback (most recent call last): 
    15486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15487 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15488 val = col.display_value(item) 
    15489 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15490 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15491 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15492 val = self.value(instance) 
    15493 ^^^^^^^^^^^^^^^^^^^^ 
    15494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15495 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15496 return self.data_fetch(instance) 
    15497 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15499 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15500 if s.display and s.atoms.displays.any(): 
    15501 ^^^^^^^^^ 
    15502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15503 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15504 return Model.display.fget(self) 
    15505 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15507 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15508 return self._any_displayed_positions and len(self._positions) > 0 
    15509 ^^^^^^^^^^^^^^^^^^^^ 
    15510 TypeError: object of type 'NoneType' has no len() 
    15511  
    15512 TypeError: object of type 'NoneType' has no len() 
    15513  
    15514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15515 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15516 return self._any_displayed_positions and len(self._positions) > 0 
    15517 ^^^^^^^^^^^^^^^^^^^^ 
    15518  
    15519 See log for complete Python traceback. 
    15520  
    15521 Traceback (most recent call last): 
    15522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15523 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15524 val = col.display_value(item) 
    15525 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15526 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15527 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15528 val = self.value(instance) 
    15529 ^^^^^^^^^^^^^^^^^^^^ 
    15530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15531 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15532 return self.data_fetch(instance) 
    15533 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15535 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15536 if s.display and s.atoms.displays.any(): 
    15537 ^^^^^^^^^ 
    15538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15539 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15540 return Model.display.fget(self) 
    15541 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15543 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15544 return self._any_displayed_positions and len(self._positions) > 0 
    15545 ^^^^^^^^^^^^^^^^^^^^ 
    15546 TypeError: object of type 'NoneType' has no len() 
    15547  
    15548 TypeError: object of type 'NoneType' has no len() 
    15549  
    15550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15551 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15552 return self._any_displayed_positions and len(self._positions) > 0 
    15553 ^^^^^^^^^^^^^^^^^^^^ 
    15554  
    15555 See log for complete Python traceback. 
    15556  
    15557 Traceback (most recent call last): 
    15558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15559 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15560 val = col.display_value(item) 
    15561 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15562 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15563 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15564 val = self.value(instance) 
    15565 ^^^^^^^^^^^^^^^^^^^^ 
    15566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15567 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15568 return self.data_fetch(instance) 
    15569 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15571 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15572 if s.display and s.atoms.displays.any(): 
    15573 ^^^^^^^^^ 
    15574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15575 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15576 return Model.display.fget(self) 
    15577 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15579 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15580 return self._any_displayed_positions and len(self._positions) > 0 
    15581 ^^^^^^^^^^^^^^^^^^^^ 
    15582 TypeError: object of type 'NoneType' has no len() 
    15583  
    15584 TypeError: object of type 'NoneType' has no len() 
    15585  
    15586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15587 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15588 return self._any_displayed_positions and len(self._positions) > 0 
    15589 ^^^^^^^^^^^^^^^^^^^^ 
    15590  
    15591 See log for complete Python traceback. 
    15592  
    15593 Traceback (most recent call last): 
    15594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15595 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15596 val = col.display_value(item) 
    15597 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15598 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15599 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15600 val = self.value(instance) 
    15601 ^^^^^^^^^^^^^^^^^^^^ 
    15602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15603 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15604 return self.data_fetch(instance) 
    15605 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15607 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15608 if s.display and s.atoms.displays.any(): 
    15609 ^^^^^^^^^ 
    15610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15611 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15612 return Model.display.fget(self) 
    15613 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15615 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15616 return self._any_displayed_positions and len(self._positions) > 0 
    15617 ^^^^^^^^^^^^^^^^^^^^ 
    15618 TypeError: object of type 'NoneType' has no len() 
    15619  
    15620 TypeError: object of type 'NoneType' has no len() 
    15621  
    15622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15623 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15624 return self._any_displayed_positions and len(self._positions) > 0 
    15625 ^^^^^^^^^^^^^^^^^^^^ 
    15626  
    15627 See log for complete Python traceback. 
    15628  
    15629 Traceback (most recent call last): 
    15630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15631 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15632 val = col.display_value(item) 
    15633 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15634 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15635 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15636 val = self.value(instance) 
    15637 ^^^^^^^^^^^^^^^^^^^^ 
    15638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15639 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15640 return self.data_fetch(instance) 
    15641 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15643 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15644 if s.display and s.atoms.displays.any(): 
    15645 ^^^^^^^^^ 
    15646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15647 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15648 return Model.display.fget(self) 
    15649 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15651 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15652 return self._any_displayed_positions and len(self._positions) > 0 
    15653 ^^^^^^^^^^^^^^^^^^^^ 
    15654 TypeError: object of type 'NoneType' has no len() 
    15655  
    15656 TypeError: object of type 'NoneType' has no len() 
    15657  
    15658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15659 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15660 return self._any_displayed_positions and len(self._positions) > 0 
    15661 ^^^^^^^^^^^^^^^^^^^^ 
    15662  
    15663 See log for complete Python traceback. 
    15664  
    15665 Traceback (most recent call last): 
    15666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15667 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15668 val = col.display_value(item) 
    15669 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15670 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15671 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15672 val = self.value(instance) 
    15673 ^^^^^^^^^^^^^^^^^^^^ 
    15674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15675 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15676 return self.data_fetch(instance) 
    15677 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15679 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15680 if s.display and s.atoms.displays.any(): 
    15681 ^^^^^^^^^ 
    15682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15683 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15684 return Model.display.fget(self) 
    15685 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15687 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15688 return self._any_displayed_positions and len(self._positions) > 0 
    15689 ^^^^^^^^^^^^^^^^^^^^ 
    15690 TypeError: object of type 'NoneType' has no len() 
    15691  
    15692 TypeError: object of type 'NoneType' has no len() 
    15693  
    15694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15695 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15696 return self._any_displayed_positions and len(self._positions) > 0 
    15697 ^^^^^^^^^^^^^^^^^^^^ 
    15698  
    15699 See log for complete Python traceback. 
    15700  
    15701 Traceback (most recent call last): 
    15702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15703 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15704 val = col.display_value(item) 
    15705 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15706 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15707 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15708 val = self.value(instance) 
    15709 ^^^^^^^^^^^^^^^^^^^^ 
    15710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15711 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15712 return self.data_fetch(instance) 
    15713 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15715 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15716 if s.display and s.atoms.displays.any(): 
    15717 ^^^^^^^^^ 
    15718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15719 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15720 return Model.display.fget(self) 
    15721 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15723 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15724 return self._any_displayed_positions and len(self._positions) > 0 
    15725 ^^^^^^^^^^^^^^^^^^^^ 
    15726 TypeError: object of type 'NoneType' has no len() 
    15727  
    15728 TypeError: object of type 'NoneType' has no len() 
    15729  
    15730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15731 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15732 return self._any_displayed_positions and len(self._positions) > 0 
    15733 ^^^^^^^^^^^^^^^^^^^^ 
    15734  
    15735 See log for complete Python traceback. 
    15736  
    15737 Traceback (most recent call last): 
    15738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15739 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15740 val = col.display_value(item) 
    15741 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15742 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15743 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15744 val = self.value(instance) 
    15745 ^^^^^^^^^^^^^^^^^^^^ 
    15746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15747 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15748 return self.data_fetch(instance) 
    15749 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15751 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15752 if s.display and s.atoms.displays.any(): 
    15753 ^^^^^^^^^ 
    15754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15755 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15756 return Model.display.fget(self) 
    15757 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15759 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15760 return self._any_displayed_positions and len(self._positions) > 0 
    15761 ^^^^^^^^^^^^^^^^^^^^ 
    15762 TypeError: object of type 'NoneType' has no len() 
    15763  
    15764 TypeError: object of type 'NoneType' has no len() 
    15765  
    15766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15767 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15768 return self._any_displayed_positions and len(self._positions) > 0 
    15769 ^^^^^^^^^^^^^^^^^^^^ 
    15770  
    15771 See log for complete Python traceback. 
    15772  
    15773 Traceback (most recent call last): 
    15774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15775 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15776 val = col.display_value(item) 
    15777 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15778 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15779 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15780 val = self.value(instance) 
    15781 ^^^^^^^^^^^^^^^^^^^^ 
    15782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15783 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15784 return self.data_fetch(instance) 
    15785 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15787 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15788 if s.display and s.atoms.displays.any(): 
    15789 ^^^^^^^^^ 
    15790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15791 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15792 return Model.display.fget(self) 
    15793 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15795 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15796 return self._any_displayed_positions and len(self._positions) > 0 
    15797 ^^^^^^^^^^^^^^^^^^^^ 
    15798 TypeError: object of type 'NoneType' has no len() 
    15799  
    15800 TypeError: object of type 'NoneType' has no len() 
    15801  
    15802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15803 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15804 return self._any_displayed_positions and len(self._positions) > 0 
    15805 ^^^^^^^^^^^^^^^^^^^^ 
    15806  
    15807 See log for complete Python traceback. 
    15808  
    15809 Traceback (most recent call last): 
    15810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15811 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15812 val = col.display_value(item) 
    15813 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15814 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15815 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15816 val = self.value(instance) 
    15817 ^^^^^^^^^^^^^^^^^^^^ 
    15818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15819 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15820 return self.data_fetch(instance) 
    15821 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15823 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15824 if s.display and s.atoms.displays.any(): 
    15825 ^^^^^^^^^ 
    15826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15827 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15828 return Model.display.fget(self) 
    15829 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15831 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15832 return self._any_displayed_positions and len(self._positions) > 0 
    15833 ^^^^^^^^^^^^^^^^^^^^ 
    15834 TypeError: object of type 'NoneType' has no len() 
    15835  
    15836 TypeError: object of type 'NoneType' has no len() 
    15837  
    15838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15839 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15840 return self._any_displayed_positions and len(self._positions) > 0 
    15841 ^^^^^^^^^^^^^^^^^^^^ 
    15842  
    15843 See log for complete Python traceback. 
    15844  
    15845 Traceback (most recent call last): 
    15846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15847 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15848 val = col.display_value(item) 
    15849 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15850 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15851 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15852 val = self.value(instance) 
    15853 ^^^^^^^^^^^^^^^^^^^^ 
    15854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15855 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15856 return self.data_fetch(instance) 
    15857 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15859 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15860 if s.display and s.atoms.displays.any(): 
    15861 ^^^^^^^^^ 
    15862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15863 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15864 return Model.display.fget(self) 
    15865 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15867 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15868 return self._any_displayed_positions and len(self._positions) > 0 
    15869 ^^^^^^^^^^^^^^^^^^^^ 
    15870 TypeError: object of type 'NoneType' has no len() 
    15871  
    15872 TypeError: object of type 'NoneType' has no len() 
    15873  
    15874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15875 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15876 return self._any_displayed_positions and len(self._positions) > 0 
    15877 ^^^^^^^^^^^^^^^^^^^^ 
    15878  
    15879 See log for complete Python traceback. 
    15880  
    15881 Traceback (most recent call last): 
    15882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15883 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15884 val = col.display_value(item) 
    15885 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15886 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15887 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15888 val = self.value(instance) 
    15889 ^^^^^^^^^^^^^^^^^^^^ 
    15890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15891 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15892 return self.data_fetch(instance) 
    15893 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15895 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15896 if s.display and s.atoms.displays.any(): 
    15897 ^^^^^^^^^ 
    15898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15899 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15900 return Model.display.fget(self) 
    15901 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15903 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15904 return self._any_displayed_positions and len(self._positions) > 0 
    15905 ^^^^^^^^^^^^^^^^^^^^ 
    15906 TypeError: object of type 'NoneType' has no len() 
    15907  
    15908 TypeError: object of type 'NoneType' has no len() 
    15909  
    15910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15911 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15912 return self._any_displayed_positions and len(self._positions) > 0 
    15913 ^^^^^^^^^^^^^^^^^^^^ 
    15914  
    15915 See log for complete Python traceback. 
    15916  
    15917 Traceback (most recent call last): 
    15918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15919 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15920 val = col.display_value(item) 
    15921 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15922 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15923 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15924 val = self.value(instance) 
    15925 ^^^^^^^^^^^^^^^^^^^^ 
    15926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15927 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15928 return self.data_fetch(instance) 
    15929 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15931 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15932 if s.display and s.atoms.displays.any(): 
    15933 ^^^^^^^^^ 
    15934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15935 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15936 return Model.display.fget(self) 
    15937 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15939 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15940 return self._any_displayed_positions and len(self._positions) > 0 
    15941 ^^^^^^^^^^^^^^^^^^^^ 
    15942 TypeError: object of type 'NoneType' has no len() 
    15943  
    15944 TypeError: object of type 'NoneType' has no len() 
    15945  
    15946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15947 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15948 return self._any_displayed_positions and len(self._positions) > 0 
    15949 ^^^^^^^^^^^^^^^^^^^^ 
    15950  
    15951 See log for complete Python traceback. 
    15952  
    15953 Traceback (most recent call last): 
    15954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15955 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15956 val = col.display_value(item) 
    15957 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15958 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15959 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15960 val = self.value(instance) 
    15961 ^^^^^^^^^^^^^^^^^^^^ 
    15962 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15963 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    15964 return self.data_fetch(instance) 
    15965 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    15966 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15967 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    15968 if s.display and s.atoms.displays.any(): 
    15969 ^^^^^^^^^ 
    15970 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15971 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    15972 return Model.display.fget(self) 
    15973 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    15974 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15975 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15976 return self._any_displayed_positions and len(self._positions) > 0 
    15977 ^^^^^^^^^^^^^^^^^^^^ 
    15978 TypeError: object of type 'NoneType' has no len() 
    15979  
    15980 TypeError: object of type 'NoneType' has no len() 
    15981  
    15982 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15983 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    15984 return self._any_displayed_positions and len(self._positions) > 0 
    15985 ^^^^^^^^^^^^^^^^^^^^ 
    15986  
    15987 See log for complete Python traceback. 
    15988  
    15989 Traceback (most recent call last): 
    15990 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15991 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    15992 val = col.display_value(item) 
    15993 ^^^^^^^^^^^^^^^^^^^^^^^ 
    15994 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15995 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    15996 val = self.value(instance) 
    15997 ^^^^^^^^^^^^^^^^^^^^ 
    15998 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    15999 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16000 return self.data_fetch(instance) 
    16001 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16002 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16003 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16004 if s.display and s.atoms.displays.any(): 
    16005 ^^^^^^^^^ 
    16006 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16007 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16008 return Model.display.fget(self) 
    16009 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16010 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16011 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16012 return self._any_displayed_positions and len(self._positions) > 0 
    16013 ^^^^^^^^^^^^^^^^^^^^ 
    16014 TypeError: object of type 'NoneType' has no len() 
    16015  
    16016 TypeError: object of type 'NoneType' has no len() 
    16017  
    16018 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16019 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16020 return self._any_displayed_positions and len(self._positions) > 0 
    16021 ^^^^^^^^^^^^^^^^^^^^ 
    16022  
    16023 See log for complete Python traceback. 
    16024  
    16025 Traceback (most recent call last): 
    16026 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16027 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16028 val = col.display_value(item) 
    16029 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16030 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16031 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16032 val = self.value(instance) 
    16033 ^^^^^^^^^^^^^^^^^^^^ 
    16034 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16035 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16036 return self.data_fetch(instance) 
    16037 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16038 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16039 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16040 if s.display and s.atoms.displays.any(): 
    16041 ^^^^^^^^^ 
    16042 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16043 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16044 return Model.display.fget(self) 
    16045 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16046 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16047 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16048 return self._any_displayed_positions and len(self._positions) > 0 
    16049 ^^^^^^^^^^^^^^^^^^^^ 
    16050 TypeError: object of type 'NoneType' has no len() 
    16051  
    16052 TypeError: object of type 'NoneType' has no len() 
    16053  
    16054 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16055 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16056 return self._any_displayed_positions and len(self._positions) > 0 
    16057 ^^^^^^^^^^^^^^^^^^^^ 
    16058  
    16059 See log for complete Python traceback. 
    16060  
    16061 Traceback (most recent call last): 
    16062 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16063 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16064 val = col.display_value(item) 
    16065 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16066 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16067 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16068 val = self.value(instance) 
    16069 ^^^^^^^^^^^^^^^^^^^^ 
    16070 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16071 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16072 return self.data_fetch(instance) 
    16073 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16074 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16075 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16076 if s.display and s.atoms.displays.any(): 
    16077 ^^^^^^^^^ 
    16078 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16079 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16080 return Model.display.fget(self) 
    16081 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16082 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16083 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16084 return self._any_displayed_positions and len(self._positions) > 0 
    16085 ^^^^^^^^^^^^^^^^^^^^ 
    16086 TypeError: object of type 'NoneType' has no len() 
    16087  
    16088 TypeError: object of type 'NoneType' has no len() 
    16089  
    16090 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16091 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16092 return self._any_displayed_positions and len(self._positions) > 0 
    16093 ^^^^^^^^^^^^^^^^^^^^ 
    16094  
    16095 See log for complete Python traceback. 
    16096  
    16097 Traceback (most recent call last): 
    16098 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16099 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16100 val = col.display_value(item) 
    16101 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16102 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16103 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16104 val = self.value(instance) 
    16105 ^^^^^^^^^^^^^^^^^^^^ 
    16106 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16107 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16108 return self.data_fetch(instance) 
    16109 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16110 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16111 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16112 if s.display and s.atoms.displays.any(): 
    16113 ^^^^^^^^^ 
    16114 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16115 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16116 return Model.display.fget(self) 
    16117 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16118 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16119 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16120 return self._any_displayed_positions and len(self._positions) > 0 
    16121 ^^^^^^^^^^^^^^^^^^^^ 
    16122 TypeError: object of type 'NoneType' has no len() 
    16123  
    16124 TypeError: object of type 'NoneType' has no len() 
    16125  
    16126 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16127 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16128 return self._any_displayed_positions and len(self._positions) > 0 
    16129 ^^^^^^^^^^^^^^^^^^^^ 
    16130  
    16131 See log for complete Python traceback. 
    16132  
    16133 Traceback (most recent call last): 
    16134 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16135 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16136 val = col.display_value(item) 
    16137 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16138 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16139 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16140 val = self.value(instance) 
    16141 ^^^^^^^^^^^^^^^^^^^^ 
    16142 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16143 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16144 return self.data_fetch(instance) 
    16145 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16146 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16147 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16148 if s.display and s.atoms.displays.any(): 
    16149 ^^^^^^^^^ 
    16150 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16151 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16152 return Model.display.fget(self) 
    16153 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16154 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16155 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16156 return self._any_displayed_positions and len(self._positions) > 0 
    16157 ^^^^^^^^^^^^^^^^^^^^ 
    16158 TypeError: object of type 'NoneType' has no len() 
    16159  
    16160 TypeError: object of type 'NoneType' has no len() 
    16161  
    16162 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16163 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16164 return self._any_displayed_positions and len(self._positions) > 0 
    16165 ^^^^^^^^^^^^^^^^^^^^ 
    16166  
    16167 See log for complete Python traceback. 
    16168  
    16169 Traceback (most recent call last): 
    16170 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16171 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16172 val = col.display_value(item) 
    16173 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16174 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16175 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16176 val = self.value(instance) 
    16177 ^^^^^^^^^^^^^^^^^^^^ 
    16178 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16179 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16180 return self.data_fetch(instance) 
    16181 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16182 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16183 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16184 if s.display and s.atoms.displays.any(): 
    16185 ^^^^^^^^^ 
    16186 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16187 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16188 return Model.display.fget(self) 
    16189 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16190 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16191 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16192 return self._any_displayed_positions and len(self._positions) > 0 
    16193 ^^^^^^^^^^^^^^^^^^^^ 
    16194 TypeError: object of type 'NoneType' has no len() 
    16195  
    16196 TypeError: object of type 'NoneType' has no len() 
    16197  
    16198 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16199 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16200 return self._any_displayed_positions and len(self._positions) > 0 
    16201 ^^^^^^^^^^^^^^^^^^^^ 
    16202  
    16203 See log for complete Python traceback. 
    16204  
    16205 Traceback (most recent call last): 
    16206 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16207 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16208 val = col.display_value(item) 
    16209 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16210 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16211 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16212 val = self.value(instance) 
    16213 ^^^^^^^^^^^^^^^^^^^^ 
    16214 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16215 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16216 return self.data_fetch(instance) 
    16217 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16218 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16219 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16220 if s.display and s.atoms.displays.any(): 
    16221 ^^^^^^^^^ 
    16222 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16223 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16224 return Model.display.fget(self) 
    16225 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16226 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16227 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16228 return self._any_displayed_positions and len(self._positions) > 0 
    16229 ^^^^^^^^^^^^^^^^^^^^ 
    16230 TypeError: object of type 'NoneType' has no len() 
    16231  
    16232 TypeError: object of type 'NoneType' has no len() 
    16233  
    16234 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16235 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16236 return self._any_displayed_positions and len(self._positions) > 0 
    16237 ^^^^^^^^^^^^^^^^^^^^ 
    16238  
    16239 See log for complete Python traceback. 
    16240  
    16241 Traceback (most recent call last): 
    16242 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16243 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16244 val = col.display_value(item) 
    16245 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16246 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16247 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16248 val = self.value(instance) 
    16249 ^^^^^^^^^^^^^^^^^^^^ 
    16250 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16251 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16252 return self.data_fetch(instance) 
    16253 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16254 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16255 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16256 if s.display and s.atoms.displays.any(): 
    16257 ^^^^^^^^^ 
    16258 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16259 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16260 return Model.display.fget(self) 
    16261 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16262 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16263 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16264 return self._any_displayed_positions and len(self._positions) > 0 
    16265 ^^^^^^^^^^^^^^^^^^^^ 
    16266 TypeError: object of type 'NoneType' has no len() 
    16267  
    16268 TypeError: object of type 'NoneType' has no len() 
    16269  
    16270 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16271 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16272 return self._any_displayed_positions and len(self._positions) > 0 
    16273 ^^^^^^^^^^^^^^^^^^^^ 
    16274  
    16275 See log for complete Python traceback. 
    16276  
    16277 Traceback (most recent call last): 
    16278 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16279 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16280 val = col.display_value(item) 
    16281 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16282 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16283 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16284 val = self.value(instance) 
    16285 ^^^^^^^^^^^^^^^^^^^^ 
    16286 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16287 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16288 return self.data_fetch(instance) 
    16289 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16290 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16291 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16292 if s.display and s.atoms.displays.any(): 
    16293 ^^^^^^^^^ 
    16294 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16295 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16296 return Model.display.fget(self) 
    16297 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16298 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16299 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16300 return self._any_displayed_positions and len(self._positions) > 0 
    16301 ^^^^^^^^^^^^^^^^^^^^ 
    16302 TypeError: object of type 'NoneType' has no len() 
    16303  
    16304 TypeError: object of type 'NoneType' has no len() 
    16305  
    16306 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16307 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16308 return self._any_displayed_positions and len(self._positions) > 0 
    16309 ^^^^^^^^^^^^^^^^^^^^ 
    16310  
    16311 See log for complete Python traceback. 
    16312  
    16313 Traceback (most recent call last): 
    16314 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16315 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16316 val = col.display_value(item) 
    16317 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16318 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16319 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16320 val = self.value(instance) 
    16321 ^^^^^^^^^^^^^^^^^^^^ 
    16322 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16323 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16324 return self.data_fetch(instance) 
    16325 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16326 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16327 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16328 if s.display and s.atoms.displays.any(): 
    16329 ^^^^^^^^^ 
    16330 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16331 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16332 return Model.display.fget(self) 
    16333 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16334 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16335 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16336 return self._any_displayed_positions and len(self._positions) > 0 
    16337 ^^^^^^^^^^^^^^^^^^^^ 
    16338 TypeError: object of type 'NoneType' has no len() 
    16339  
    16340 TypeError: object of type 'NoneType' has no len() 
    16341  
    16342 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16343 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16344 return self._any_displayed_positions and len(self._positions) > 0 
    16345 ^^^^^^^^^^^^^^^^^^^^ 
    16346  
    16347 See log for complete Python traceback. 
    16348  
    16349 Traceback (most recent call last): 
    16350 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16351 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16352 val = col.display_value(item) 
    16353 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16354 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16355 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16356 val = self.value(instance) 
    16357 ^^^^^^^^^^^^^^^^^^^^ 
    16358 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16359 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16360 return self.data_fetch(instance) 
    16361 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16362 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16363 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16364 if s.display and s.atoms.displays.any(): 
    16365 ^^^^^^^^^ 
    16366 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16367 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16368 return Model.display.fget(self) 
    16369 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16370 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16371 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16372 return self._any_displayed_positions and len(self._positions) > 0 
    16373 ^^^^^^^^^^^^^^^^^^^^ 
    16374 TypeError: object of type 'NoneType' has no len() 
    16375  
    16376 TypeError: object of type 'NoneType' has no len() 
    16377  
    16378 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16379 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16380 return self._any_displayed_positions and len(self._positions) > 0 
    16381 ^^^^^^^^^^^^^^^^^^^^ 
    16382  
    16383 See log for complete Python traceback. 
    16384  
    16385 Traceback (most recent call last): 
    16386 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16387 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16388 val = col.display_value(item) 
    16389 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16390 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16391 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16392 val = self.value(instance) 
    16393 ^^^^^^^^^^^^^^^^^^^^ 
    16394 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16395 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16396 return self.data_fetch(instance) 
    16397 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16398 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16399 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16400 if s.display and s.atoms.displays.any(): 
    16401 ^^^^^^^^^ 
    16402 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16403 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16404 return Model.display.fget(self) 
    16405 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16406 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16407 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16408 return self._any_displayed_positions and len(self._positions) > 0 
    16409 ^^^^^^^^^^^^^^^^^^^^ 
    16410 TypeError: object of type 'NoneType' has no len() 
    16411  
    16412 TypeError: object of type 'NoneType' has no len() 
    16413  
    16414 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16415 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16416 return self._any_displayed_positions and len(self._positions) > 0 
    16417 ^^^^^^^^^^^^^^^^^^^^ 
    16418  
    16419 See log for complete Python traceback. 
    16420  
    16421 Traceback (most recent call last): 
    16422 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16423 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16424 val = col.display_value(item) 
    16425 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16426 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16427 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16428 val = self.value(instance) 
    16429 ^^^^^^^^^^^^^^^^^^^^ 
    16430 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16431 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16432 return self.data_fetch(instance) 
    16433 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16434 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16435 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16436 if s.display and s.atoms.displays.any(): 
    16437 ^^^^^^^^^ 
    16438 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16439 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16440 return Model.display.fget(self) 
    16441 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16442 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16443 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16444 return self._any_displayed_positions and len(self._positions) > 0 
    16445 ^^^^^^^^^^^^^^^^^^^^ 
    16446 TypeError: object of type 'NoneType' has no len() 
    16447  
    16448 TypeError: object of type 'NoneType' has no len() 
    16449  
    16450 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16451 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16452 return self._any_displayed_positions and len(self._positions) > 0 
    16453 ^^^^^^^^^^^^^^^^^^^^ 
    16454  
    16455 See log for complete Python traceback. 
    16456  
    16457 Traceback (most recent call last): 
    16458 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16459 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16460 val = col.display_value(item) 
    16461 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16462 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16463 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16464 val = self.value(instance) 
    16465 ^^^^^^^^^^^^^^^^^^^^ 
    16466 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16467 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16468 return self.data_fetch(instance) 
    16469 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16470 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16471 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16472 if s.display and s.atoms.displays.any(): 
    16473 ^^^^^^^^^ 
    16474 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16475 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16476 return Model.display.fget(self) 
    16477 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16478 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16479 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16480 return self._any_displayed_positions and len(self._positions) > 0 
    16481 ^^^^^^^^^^^^^^^^^^^^ 
    16482 TypeError: object of type 'NoneType' has no len() 
    16483  
    16484 TypeError: object of type 'NoneType' has no len() 
    16485  
    16486 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16487 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16488 return self._any_displayed_positions and len(self._positions) > 0 
    16489 ^^^^^^^^^^^^^^^^^^^^ 
    16490  
    16491 See log for complete Python traceback. 
    16492  
    16493 Traceback (most recent call last): 
    16494 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16495 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16496 val = col.display_value(item) 
    16497 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16498 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16499 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16500 val = self.value(instance) 
    16501 ^^^^^^^^^^^^^^^^^^^^ 
    16502 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16503 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16504 return self.data_fetch(instance) 
    16505 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16506 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16507 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16508 if s.display and s.atoms.displays.any(): 
    16509 ^^^^^^^^^ 
    16510 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16511 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16512 return Model.display.fget(self) 
    16513 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16514 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16515 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16516 return self._any_displayed_positions and len(self._positions) > 0 
    16517 ^^^^^^^^^^^^^^^^^^^^ 
    16518 TypeError: object of type 'NoneType' has no len() 
    16519  
    16520 TypeError: object of type 'NoneType' has no len() 
    16521  
    16522 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16523 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16524 return self._any_displayed_positions and len(self._positions) > 0 
    16525 ^^^^^^^^^^^^^^^^^^^^ 
    16526  
    16527 See log for complete Python traceback. 
    16528  
    16529 Traceback (most recent call last): 
    16530 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16531 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16532 val = col.display_value(item) 
    16533 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16534 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16535 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16536 val = self.value(instance) 
    16537 ^^^^^^^^^^^^^^^^^^^^ 
    16538 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16539 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16540 return self.data_fetch(instance) 
    16541 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16542 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16543 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16544 if s.display and s.atoms.displays.any(): 
    16545 ^^^^^^^^^ 
    16546 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16547 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16548 return Model.display.fget(self) 
    16549 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16550 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16551 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16552 return self._any_displayed_positions and len(self._positions) > 0 
    16553 ^^^^^^^^^^^^^^^^^^^^ 
    16554 TypeError: object of type 'NoneType' has no len() 
    16555  
    16556 TypeError: object of type 'NoneType' has no len() 
    16557  
    16558 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16559 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16560 return self._any_displayed_positions and len(self._positions) > 0 
    16561 ^^^^^^^^^^^^^^^^^^^^ 
    16562  
    16563 See log for complete Python traceback. 
    16564  
    16565 Traceback (most recent call last): 
    16566 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16567 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16568 val = col.display_value(item) 
    16569 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16570 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16571 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16572 val = self.value(instance) 
    16573 ^^^^^^^^^^^^^^^^^^^^ 
    16574 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16575 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16576 return self.data_fetch(instance) 
    16577 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16578 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16579 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16580 if s.display and s.atoms.displays.any(): 
    16581 ^^^^^^^^^ 
    16582 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16583 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16584 return Model.display.fget(self) 
    16585 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16586 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16587 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16588 return self._any_displayed_positions and len(self._positions) > 0 
    16589 ^^^^^^^^^^^^^^^^^^^^ 
    16590 TypeError: object of type 'NoneType' has no len() 
    16591  
    16592 TypeError: object of type 'NoneType' has no len() 
    16593  
    16594 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16595 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16596 return self._any_displayed_positions and len(self._positions) > 0 
    16597 ^^^^^^^^^^^^^^^^^^^^ 
    16598  
    16599 See log for complete Python traceback. 
    16600  
    16601 Traceback (most recent call last): 
    16602 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16603 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16604 val = col.display_value(item) 
    16605 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16606 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16607 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16608 val = self.value(instance) 
    16609 ^^^^^^^^^^^^^^^^^^^^ 
    16610 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16611 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16612 return self.data_fetch(instance) 
    16613 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16614 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16615 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16616 if s.display and s.atoms.displays.any(): 
    16617 ^^^^^^^^^ 
    16618 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16619 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16620 return Model.display.fget(self) 
    16621 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16622 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16623 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16624 return self._any_displayed_positions and len(self._positions) > 0 
    16625 ^^^^^^^^^^^^^^^^^^^^ 
    16626 TypeError: object of type 'NoneType' has no len() 
    16627  
    16628 TypeError: object of type 'NoneType' has no len() 
    16629  
    16630 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16631 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16632 return self._any_displayed_positions and len(self._positions) > 0 
    16633 ^^^^^^^^^^^^^^^^^^^^ 
    16634  
    16635 See log for complete Python traceback. 
    16636  
    16637 Traceback (most recent call last): 
    16638 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16639 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16640 val = col.display_value(item) 
    16641 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16642 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16643 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16644 val = self.value(instance) 
    16645 ^^^^^^^^^^^^^^^^^^^^ 
    16646 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16647 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16648 return self.data_fetch(instance) 
    16649 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16650 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16651 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16652 if s.display and s.atoms.displays.any(): 
    16653 ^^^^^^^^^ 
    16654 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16655 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16656 return Model.display.fget(self) 
    16657 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16658 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16659 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16660 return self._any_displayed_positions and len(self._positions) > 0 
    16661 ^^^^^^^^^^^^^^^^^^^^ 
    16662 TypeError: object of type 'NoneType' has no len() 
    16663  
    16664 TypeError: object of type 'NoneType' has no len() 
    16665  
    16666 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16667 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16668 return self._any_displayed_positions and len(self._positions) > 0 
    16669 ^^^^^^^^^^^^^^^^^^^^ 
    16670  
    16671 See log for complete Python traceback. 
    16672  
    16673 Traceback (most recent call last): 
    16674 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16675 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16676 val = col.display_value(item) 
    16677 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16678 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16679 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16680 val = self.value(instance) 
    16681 ^^^^^^^^^^^^^^^^^^^^ 
    16682 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16683 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16684 return self.data_fetch(instance) 
    16685 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16686 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16687 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16688 if s.display and s.atoms.displays.any(): 
    16689 ^^^^^^^^^ 
    16690 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16691 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16692 return Model.display.fget(self) 
    16693 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16694 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16695 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16696 return self._any_displayed_positions and len(self._positions) > 0 
    16697 ^^^^^^^^^^^^^^^^^^^^ 
    16698 TypeError: object of type 'NoneType' has no len() 
    16699  
    16700 TypeError: object of type 'NoneType' has no len() 
    16701  
    16702 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16703 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16704 return self._any_displayed_positions and len(self._positions) > 0 
    16705 ^^^^^^^^^^^^^^^^^^^^ 
    16706  
    16707 See log for complete Python traceback. 
    16708  
    16709 Traceback (most recent call last): 
    16710 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16711 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16712 val = col.display_value(item) 
    16713 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16714 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16715 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16716 val = self.value(instance) 
    16717 ^^^^^^^^^^^^^^^^^^^^ 
    16718 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16719 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16720 return self.data_fetch(instance) 
    16721 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16722 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16723 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16724 if s.display and s.atoms.displays.any(): 
    16725 ^^^^^^^^^ 
    16726 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16727 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16728 return Model.display.fget(self) 
    16729 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16730 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16731 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16732 return self._any_displayed_positions and len(self._positions) > 0 
    16733 ^^^^^^^^^^^^^^^^^^^^ 
    16734 TypeError: object of type 'NoneType' has no len() 
    16735  
    16736 TypeError: object of type 'NoneType' has no len() 
    16737  
    16738 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16739 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16740 return self._any_displayed_positions and len(self._positions) > 0 
    16741 ^^^^^^^^^^^^^^^^^^^^ 
    16742  
    16743 See log for complete Python traceback. 
    16744  
    16745 Traceback (most recent call last): 
    16746 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16747 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16748 val = col.display_value(item) 
    16749 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16750 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16751 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16752 val = self.value(instance) 
    16753 ^^^^^^^^^^^^^^^^^^^^ 
    16754 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16755 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16756 return self.data_fetch(instance) 
    16757 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16758 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16759 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16760 if s.display and s.atoms.displays.any(): 
    16761 ^^^^^^^^^ 
    16762 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16763 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16764 return Model.display.fget(self) 
    16765 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16766 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16767 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16768 return self._any_displayed_positions and len(self._positions) > 0 
    16769 ^^^^^^^^^^^^^^^^^^^^ 
    16770 TypeError: object of type 'NoneType' has no len() 
    16771  
    16772 TypeError: object of type 'NoneType' has no len() 
    16773  
    16774 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16775 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16776 return self._any_displayed_positions and len(self._positions) > 0 
    16777 ^^^^^^^^^^^^^^^^^^^^ 
    16778  
    16779 See log for complete Python traceback. 
    16780  
    16781 Traceback (most recent call last): 
    16782 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16783 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16784 val = col.display_value(item) 
    16785 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16786 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16787 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16788 val = self.value(instance) 
    16789 ^^^^^^^^^^^^^^^^^^^^ 
    16790 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16791 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16792 return self.data_fetch(instance) 
    16793 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16794 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16795 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16796 if s.display and s.atoms.displays.any(): 
    16797 ^^^^^^^^^ 
    16798 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16799 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16800 return Model.display.fget(self) 
    16801 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16802 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16803 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16804 return self._any_displayed_positions and len(self._positions) > 0 
    16805 ^^^^^^^^^^^^^^^^^^^^ 
    16806 TypeError: object of type 'NoneType' has no len() 
    16807  
    16808 TypeError: object of type 'NoneType' has no len() 
    16809  
    16810 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16811 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16812 return self._any_displayed_positions and len(self._positions) > 0 
    16813 ^^^^^^^^^^^^^^^^^^^^ 
    16814  
    16815 See log for complete Python traceback. 
    16816  
    16817 Traceback (most recent call last): 
    16818 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16819 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16820 val = col.display_value(item) 
    16821 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16822 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16823 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16824 val = self.value(instance) 
    16825 ^^^^^^^^^^^^^^^^^^^^ 
    16826 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16827 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16828 return self.data_fetch(instance) 
    16829 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16830 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16831 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16832 if s.display and s.atoms.displays.any(): 
    16833 ^^^^^^^^^ 
    16834 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16835 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16836 return Model.display.fget(self) 
    16837 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16838 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16839 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16840 return self._any_displayed_positions and len(self._positions) > 0 
    16841 ^^^^^^^^^^^^^^^^^^^^ 
    16842 TypeError: object of type 'NoneType' has no len() 
    16843  
    16844 TypeError: object of type 'NoneType' has no len() 
    16845  
    16846 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16847 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16848 return self._any_displayed_positions and len(self._positions) > 0 
    16849 ^^^^^^^^^^^^^^^^^^^^ 
    16850  
    16851 See log for complete Python traceback. 
    16852  
    16853 Traceback (most recent call last): 
    16854 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16855 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16856 val = col.display_value(item) 
    16857 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16858 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16859 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16860 val = self.value(instance) 
    16861 ^^^^^^^^^^^^^^^^^^^^ 
    16862 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16863 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16864 return self.data_fetch(instance) 
    16865 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16866 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16867 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16868 if s.display and s.atoms.displays.any(): 
    16869 ^^^^^^^^^ 
    16870 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16871 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16872 return Model.display.fget(self) 
    16873 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16874 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16875 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16876 return self._any_displayed_positions and len(self._positions) > 0 
    16877 ^^^^^^^^^^^^^^^^^^^^ 
    16878 TypeError: object of type 'NoneType' has no len() 
    16879  
    16880 TypeError: object of type 'NoneType' has no len() 
    16881  
    16882 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16883 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16884 return self._any_displayed_positions and len(self._positions) > 0 
    16885 ^^^^^^^^^^^^^^^^^^^^ 
    16886  
    16887 See log for complete Python traceback. 
    16888  
    16889 Traceback (most recent call last): 
    16890 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16891 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16892 val = col.display_value(item) 
    16893 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16894 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16895 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16896 val = self.value(instance) 
    16897 ^^^^^^^^^^^^^^^^^^^^ 
    16898 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16899 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16900 return self.data_fetch(instance) 
    16901 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16902 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16903 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16904 if s.display and s.atoms.displays.any(): 
    16905 ^^^^^^^^^ 
    16906 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16907 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16908 return Model.display.fget(self) 
    16909 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16910 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16911 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16912 return self._any_displayed_positions and len(self._positions) > 0 
    16913 ^^^^^^^^^^^^^^^^^^^^ 
    16914 TypeError: object of type 'NoneType' has no len() 
    16915  
    16916 TypeError: object of type 'NoneType' has no len() 
    16917  
    16918 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16919 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16920 return self._any_displayed_positions and len(self._positions) > 0 
    16921 ^^^^^^^^^^^^^^^^^^^^ 
    16922  
    16923 See log for complete Python traceback. 
    16924  
    16925 Traceback (most recent call last): 
    16926 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16927 packages\chimerax\ui\widgets\item_table.py", line 34, in data 
    16928 val = col.display_value(item) 
    16929 ^^^^^^^^^^^^^^^^^^^^^^^ 
    16930 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16931 packages\chimerax\ui\widgets\item_table.py", line 886, in display_value 
    16932 val = self.value(instance) 
    16933 ^^^^^^^^^^^^^^^^^^^^ 
    16934 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16935 packages\chimerax\ui\widgets\item_table.py", line 903, in value 
    16936 return self.data_fetch(instance) 
    16937 ^^^^^^^^^^^^^^^^^^^^^^^^^ 
    16938 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16939 packages\chimerax\kvfinder\tool.py", line 201, in color_func 
    16940 if s.display and s.atoms.displays.any(): 
    16941 ^^^^^^^^^ 
    16942 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16943 packages\chimerax\atomic\structure.py", line 529, in _get_display 
    16944 return Model.display.fget(self) 
    16945 ^^^^^^^^^^^^^^^^^^^^^^^^ 
    16946 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16947 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16948 return self._any_displayed_positions and len(self._positions) > 0 
    16949 ^^^^^^^^^^^^^^^^^^^^ 
    16950 TypeError: object of type 'NoneType' has no len() 
    16951  
    16952 TypeError: object of type 'NoneType' has no len() 
    16953  
    16954 File "C:\Program Files\ChimeraX 1.10.1\bin\Lib\site-
    16955 packages\chimerax\graphics\drawing.py", line 389, in get_display 
    16956 return self._any_displayed_positions and len(self._positions) > 0 
    16957 ^^^^^^^^^^^^^^^^^^^^ 
    16958  
     2379[deleted to fit within ticket limits]
     2380
    169592381See log for complete Python traceback. 
    169602382