Changes between Initial Version and Version 1 of Ticket #3359


Ignore:
Timestamp:
Jun 5, 2020, 9:25:06 AM (5 years ago)
Author:
pett
Comment:

Legend:

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  • Ticket #3359

    • Property Component Unassigned → Volume Data
    • Property Owner set to Tom Goddard
    • Property Platform → all
    • Property Project → ChimeraX
    • Property Status new → assigned
    • Property Summary ChimeraX bug report submission → map/surface color is None

  • Ticket #3359 – Description

    initial v1  
    457457See log for complete Python traceback. 
    458458 
    459 Traceback (most recent call last): 
    460 File
    461 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    462 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    463 self._drag(event) 
    464 File
    465 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    466 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    467 cb(event) 
    468 File
    469 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    470 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    471 cb(m) 
    472 File
    473 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    474 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    475 self.select_data_cb() # Causes redisplay using GUI settings 
    476 File
    477 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    478 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    479 d.redisplay_needed_cb() 
    480 File
    481 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    482 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    483 self.redisplay_needed() 
    484 File
    485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    486 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    487 self.show_using_dialog_settings(self.active_volume) 
    488 File
    489 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    490 packages/chimerax/map/volume_viewer.py", line 360, in
    491 show_using_dialog_settings 
    492 p.use_gui_settings(dr) 
    493 File
    494 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    495 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    496 hp.set_threshold_parameters_from_gui() 
    497 File
    498 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    499 packages/chimerax/map/volume_viewer.py", line 2765, in
    500 set_threshold_parameters_from_gui 
    501 if tuple(s.rgba) != tuple(color): 
    502 File
    503 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    504 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    505 return tuple(c/255 for c in self.color) 
    506 File
    507 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    508 packages/chimerax/map/volume.py", line 1995, in get_color 
    509 return Surface.get_color(self) 
    510 File
    511 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    512 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    513 return self._colors[0] 
    514 TypeError: 'NoneType' object is not subscriptable 
    515  
    516 TypeError: 'NoneType' object is not subscriptable 
    517  
    518 File
    519 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    520 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    521 return self._colors[0] 
    522  
    523 See log for complete Python traceback. 
    524  
    525 Traceback (most recent call last): 
    526 File
    527 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    528 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    529 self._drag(event) 
    530 File
    531 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    532 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    533 cb(event) 
    534 File
    535 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    536 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    537 cb(m) 
    538 File
    539 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    540 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    541 self.select_data_cb() # Causes redisplay using GUI settings 
    542 File
    543 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    544 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    545 d.redisplay_needed_cb() 
    546 File
    547 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    548 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    549 self.redisplay_needed() 
    550 File
    551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    552 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    553 self.show_using_dialog_settings(self.active_volume) 
    554 File
    555 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    556 packages/chimerax/map/volume_viewer.py", line 360, in
    557 show_using_dialog_settings 
    558 p.use_gui_settings(dr) 
    559 File
    560 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    561 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    562 hp.set_threshold_parameters_from_gui() 
    563 File
    564 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    565 packages/chimerax/map/volume_viewer.py", line 2765, in
    566 set_threshold_parameters_from_gui 
    567 if tuple(s.rgba) != tuple(color): 
    568 File
    569 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    570 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    571 return tuple(c/255 for c in self.color) 
    572 File
    573 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    574 packages/chimerax/map/volume.py", line 1995, in get_color 
    575 return Surface.get_color(self) 
    576 File
    577 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    578 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    579 return self._colors[0] 
    580 TypeError: 'NoneType' object is not subscriptable 
    581  
    582 TypeError: 'NoneType' object is not subscriptable 
    583  
    584 File
    585 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    586 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    587 return self._colors[0] 
    588  
    589 See log for complete Python traceback. 
    590  
    591 Traceback (most recent call last): 
    592 File
    593 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    594 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    595 self._drag(event) 
    596 File
    597 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    598 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    599 cb(event) 
    600 File
    601 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    602 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    603 cb(m) 
    604 File
    605 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    606 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    607 self.select_data_cb() # Causes redisplay using GUI settings 
    608 File
    609 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    610 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    611 d.redisplay_needed_cb() 
    612 File
    613 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    614 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    615 self.redisplay_needed() 
    616 File
    617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    618 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    619 self.show_using_dialog_settings(self.active_volume) 
    620 File
    621 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    622 packages/chimerax/map/volume_viewer.py", line 360, in
    623 show_using_dialog_settings 
    624 p.use_gui_settings(dr) 
    625 File
    626 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    627 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    628 hp.set_threshold_parameters_from_gui() 
    629 File
    630 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    631 packages/chimerax/map/volume_viewer.py", line 2765, in
    632 set_threshold_parameters_from_gui 
    633 if tuple(s.rgba) != tuple(color): 
    634 File
    635 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    636 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    637 return tuple(c/255 for c in self.color) 
    638 File
    639 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    640 packages/chimerax/map/volume.py", line 1995, in get_color 
    641 return Surface.get_color(self) 
    642 File
    643 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    644 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    645 return self._colors[0] 
    646 TypeError: 'NoneType' object is not subscriptable 
    647  
    648 TypeError: 'NoneType' object is not subscriptable 
    649  
    650 File
    651 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    652 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    653 return self._colors[0] 
    654  
    655 See log for complete Python traceback. 
    656  
    657 Traceback (most recent call last): 
    658 File
    659 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    660 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    661 self._drag(event) 
    662 File
    663 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    664 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    665 cb(event) 
    666 File
    667 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    668 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    669 cb(m) 
    670 File
    671 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    672 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    673 self.select_data_cb() # Causes redisplay using GUI settings 
    674 File
    675 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    676 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    677 d.redisplay_needed_cb() 
    678 File
    679 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    680 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    681 self.redisplay_needed() 
    682 File
    683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    684 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    685 self.show_using_dialog_settings(self.active_volume) 
    686 File
    687 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    688 packages/chimerax/map/volume_viewer.py", line 360, in
    689 show_using_dialog_settings 
    690 p.use_gui_settings(dr) 
    691 File
    692 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    693 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    694 hp.set_threshold_parameters_from_gui() 
    695 File
    696 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    697 packages/chimerax/map/volume_viewer.py", line 2765, in
    698 set_threshold_parameters_from_gui 
    699 if tuple(s.rgba) != tuple(color): 
    700 File
    701 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    702 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    703 return tuple(c/255 for c in self.color) 
    704 File
    705 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    706 packages/chimerax/map/volume.py", line 1995, in get_color 
    707 return Surface.get_color(self) 
    708 File
    709 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    710 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    711 return self._colors[0] 
    712 TypeError: 'NoneType' object is not subscriptable 
    713  
    714 TypeError: 'NoneType' object is not subscriptable 
    715  
    716 File
    717 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    718 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    719 return self._colors[0] 
    720  
    721 See log for complete Python traceback. 
    722  
    723 Traceback (most recent call last): 
    724 File
    725 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    726 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    727 self._drag(event) 
    728 File
    729 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    730 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    731 cb(event) 
    732 File
    733 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    734 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    735 cb(m) 
    736 File
    737 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    738 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    739 self.select_data_cb() # Causes redisplay using GUI settings 
    740 File
    741 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    742 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    743 d.redisplay_needed_cb() 
    744 File
    745 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    746 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    747 self.redisplay_needed() 
    748 File
    749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    750 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    751 self.show_using_dialog_settings(self.active_volume) 
    752 File
    753 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    754 packages/chimerax/map/volume_viewer.py", line 360, in
    755 show_using_dialog_settings 
    756 p.use_gui_settings(dr) 
    757 File
    758 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    759 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    760 hp.set_threshold_parameters_from_gui() 
    761 File
    762 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    763 packages/chimerax/map/volume_viewer.py", line 2765, in
    764 set_threshold_parameters_from_gui 
    765 if tuple(s.rgba) != tuple(color): 
    766 File
    767 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    768 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    769 return tuple(c/255 for c in self.color) 
    770 File
    771 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    772 packages/chimerax/map/volume.py", line 1995, in get_color 
    773 return Surface.get_color(self) 
    774 File
    775 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    776 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    777 return self._colors[0] 
    778 TypeError: 'NoneType' object is not subscriptable 
    779  
    780 TypeError: 'NoneType' object is not subscriptable 
    781  
    782 File
    783 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    784 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    785 return self._colors[0] 
    786  
    787 See log for complete Python traceback. 
    788  
    789 Traceback (most recent call last): 
    790 File
    791 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    792 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    793 self._drag(event) 
    794 File
    795 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    796 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    797 cb(event) 
    798 File
    799 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    800 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    801 cb(m) 
    802 File
    803 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    804 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    805 self.select_data_cb() # Causes redisplay using GUI settings 
    806 File
    807 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    808 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    809 d.redisplay_needed_cb() 
    810 File
    811 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    812 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    813 self.redisplay_needed() 
    814 File
    815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    816 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    817 self.show_using_dialog_settings(self.active_volume) 
    818 File
    819 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    820 packages/chimerax/map/volume_viewer.py", line 360, in
    821 show_using_dialog_settings 
    822 p.use_gui_settings(dr) 
    823 File
    824 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    825 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    826 hp.set_threshold_parameters_from_gui() 
    827 File
    828 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    829 packages/chimerax/map/volume_viewer.py", line 2765, in
    830 set_threshold_parameters_from_gui 
    831 if tuple(s.rgba) != tuple(color): 
    832 File
    833 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    834 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    835 return tuple(c/255 for c in self.color) 
    836 File
    837 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    838 packages/chimerax/map/volume.py", line 1995, in get_color 
    839 return Surface.get_color(self) 
    840 File
    841 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    842 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    843 return self._colors[0] 
    844 TypeError: 'NoneType' object is not subscriptable 
    845  
    846 TypeError: 'NoneType' object is not subscriptable 
    847  
    848 File
    849 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    850 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    851 return self._colors[0] 
    852  
    853 See log for complete Python traceback. 
    854  
    855 Traceback (most recent call last): 
    856 File
    857 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    858 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    859 self._drag(event) 
    860 File
    861 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    862 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    863 cb(event) 
    864 File
    865 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    866 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    867 cb(m) 
    868 File
    869 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    870 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    871 self.select_data_cb() # Causes redisplay using GUI settings 
    872 File
    873 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    874 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    875 d.redisplay_needed_cb() 
    876 File
    877 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    878 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    879 self.redisplay_needed() 
    880 File
    881 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    882 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    883 self.show_using_dialog_settings(self.active_volume) 
    884 File
    885 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    886 packages/chimerax/map/volume_viewer.py", line 360, in
    887 show_using_dialog_settings 
    888 p.use_gui_settings(dr) 
    889 File
    890 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    891 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    892 hp.set_threshold_parameters_from_gui() 
    893 File
    894 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    895 packages/chimerax/map/volume_viewer.py", line 2765, in
    896 set_threshold_parameters_from_gui 
    897 if tuple(s.rgba) != tuple(color): 
    898 File
    899 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    900 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    901 return tuple(c/255 for c in self.color) 
    902 File
    903 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    904 packages/chimerax/map/volume.py", line 1995, in get_color 
    905 return Surface.get_color(self) 
    906 File
    907 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    908 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    909 return self._colors[0] 
    910 TypeError: 'NoneType' object is not subscriptable 
    911  
    912 TypeError: 'NoneType' object is not subscriptable 
    913  
    914 File
    915 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    916 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    917 return self._colors[0] 
    918  
    919 See log for complete Python traceback. 
    920  
    921 Traceback (most recent call last): 
    922 File
    923 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    924 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    925 self._drag(event) 
    926 File
    927 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    928 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    929 cb(event) 
    930 File
    931 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    932 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    933 cb(m) 
    934 File
    935 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    936 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    937 self.select_data_cb() # Causes redisplay using GUI settings 
    938 File
    939 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    940 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    941 d.redisplay_needed_cb() 
    942 File
    943 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    944 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    945 self.redisplay_needed() 
    946 File
    947 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    948 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    949 self.show_using_dialog_settings(self.active_volume) 
    950 File
    951 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    952 packages/chimerax/map/volume_viewer.py", line 360, in
    953 show_using_dialog_settings 
    954 p.use_gui_settings(dr) 
    955 File
    956 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    957 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    958 hp.set_threshold_parameters_from_gui() 
    959 File
    960 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    961 packages/chimerax/map/volume_viewer.py", line 2765, in
    962 set_threshold_parameters_from_gui 
    963 if tuple(s.rgba) != tuple(color): 
    964 File
    965 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    966 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    967 return tuple(c/255 for c in self.color) 
    968 File
    969 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    970 packages/chimerax/map/volume.py", line 1995, in get_color 
    971 return Surface.get_color(self) 
    972 File
    973 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    974 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    975 return self._colors[0] 
    976 TypeError: 'NoneType' object is not subscriptable 
    977  
    978 TypeError: 'NoneType' object is not subscriptable 
    979  
    980 File
    981 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    982 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    983 return self._colors[0] 
    984  
    985 See log for complete Python traceback. 
    986  
    987 Traceback (most recent call last): 
    988 File
    989 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    990 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    991 self._drag(event) 
    992 File
    993 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    994 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    995 cb(event) 
    996 File
    997 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    998 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    999 cb(m) 
    1000 File
    1001 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1002 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1003 self.select_data_cb() # Causes redisplay using GUI settings 
    1004 File
    1005 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1006 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1007 d.redisplay_needed_cb() 
    1008 File
    1009 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1010 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1011 self.redisplay_needed() 
    1012 File
    1013 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1014 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1015 self.show_using_dialog_settings(self.active_volume) 
    1016 File
    1017 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1018 packages/chimerax/map/volume_viewer.py", line 360, in
    1019 show_using_dialog_settings 
    1020 p.use_gui_settings(dr) 
    1021 File
    1022 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1023 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1024 hp.set_threshold_parameters_from_gui() 
    1025 File
    1026 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1027 packages/chimerax/map/volume_viewer.py", line 2765, in
    1028 set_threshold_parameters_from_gui 
    1029 if tuple(s.rgba) != tuple(color): 
    1030 File
    1031 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1032 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1033 return tuple(c/255 for c in self.color) 
    1034 File
    1035 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1036 packages/chimerax/map/volume.py", line 1995, in get_color 
    1037 return Surface.get_color(self) 
    1038 File
    1039 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1040 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1041 return self._colors[0] 
    1042 TypeError: 'NoneType' object is not subscriptable 
    1043  
    1044 TypeError: 'NoneType' object is not subscriptable 
    1045  
    1046 File
    1047 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1048 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1049 return self._colors[0] 
    1050  
    1051 See log for complete Python traceback. 
    1052  
    1053 Traceback (most recent call last): 
    1054 File
    1055 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1056 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1057 self._drag(event) 
    1058 File
    1059 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1060 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1061 cb(event) 
    1062 File
    1063 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1064 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1065 cb(m) 
    1066 File
    1067 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1068 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1069 self.select_data_cb() # Causes redisplay using GUI settings 
    1070 File
    1071 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1072 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1073 d.redisplay_needed_cb() 
    1074 File
    1075 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1076 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1077 self.redisplay_needed() 
    1078 File
    1079 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1080 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1081 self.show_using_dialog_settings(self.active_volume) 
    1082 File
    1083 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1084 packages/chimerax/map/volume_viewer.py", line 360, in
    1085 show_using_dialog_settings 
    1086 p.use_gui_settings(dr) 
    1087 File
    1088 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1089 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1090 hp.set_threshold_parameters_from_gui() 
    1091 File
    1092 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1093 packages/chimerax/map/volume_viewer.py", line 2765, in
    1094 set_threshold_parameters_from_gui 
    1095 if tuple(s.rgba) != tuple(color): 
    1096 File
    1097 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1098 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1099 return tuple(c/255 for c in self.color) 
    1100 File
    1101 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1102 packages/chimerax/map/volume.py", line 1995, in get_color 
    1103 return Surface.get_color(self) 
    1104 File
    1105 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1106 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1107 return self._colors[0] 
    1108 TypeError: 'NoneType' object is not subscriptable 
    1109  
    1110 TypeError: 'NoneType' object is not subscriptable 
    1111  
    1112 File
    1113 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1114 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1115 return self._colors[0] 
    1116  
    1117 See log for complete Python traceback. 
    1118  
    1119 Traceback (most recent call last): 
    1120 File
    1121 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1122 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1123 self._drag(event) 
    1124 File
    1125 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1126 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1127 cb(event) 
    1128 File
    1129 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1130 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1131 cb(m) 
    1132 File
    1133 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1134 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1135 self.select_data_cb() # Causes redisplay using GUI settings 
    1136 File
    1137 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1138 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1139 d.redisplay_needed_cb() 
    1140 File
    1141 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1142 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1143 self.redisplay_needed() 
    1144 File
    1145 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1146 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1147 self.show_using_dialog_settings(self.active_volume) 
    1148 File
    1149 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1150 packages/chimerax/map/volume_viewer.py", line 360, in
    1151 show_using_dialog_settings 
    1152 p.use_gui_settings(dr) 
    1153 File
    1154 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1155 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1156 hp.set_threshold_parameters_from_gui() 
    1157 File
    1158 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1159 packages/chimerax/map/volume_viewer.py", line 2765, in
    1160 set_threshold_parameters_from_gui 
    1161 if tuple(s.rgba) != tuple(color): 
    1162 File
    1163 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1164 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1165 return tuple(c/255 for c in self.color) 
    1166 File
    1167 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1168 packages/chimerax/map/volume.py", line 1995, in get_color 
    1169 return Surface.get_color(self) 
    1170 File
    1171 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1172 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1173 return self._colors[0] 
    1174 TypeError: 'NoneType' object is not subscriptable 
    1175  
    1176 TypeError: 'NoneType' object is not subscriptable 
    1177  
    1178 File
    1179 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1180 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1181 return self._colors[0] 
    1182  
    1183 See log for complete Python traceback. 
    1184  
    1185 Traceback (most recent call last): 
    1186 File
    1187 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1188 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    1189 self._drag(event) 
    1190 File
    1191 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1192 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1193 cb(event) 
    1194 File
    1195 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1196 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1197 cb(m) 
    1198 File
    1199 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1200 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1201 self.select_data_cb() # Causes redisplay using GUI settings 
    1202 File
    1203 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1204 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1205 d.redisplay_needed_cb() 
    1206 File
    1207 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1208 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1209 self.redisplay_needed() 
    1210 File
    1211 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1212 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1213 self.show_using_dialog_settings(self.active_volume) 
    1214 File
    1215 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1216 packages/chimerax/map/volume_viewer.py", line 360, in
    1217 show_using_dialog_settings 
    1218 p.use_gui_settings(dr) 
    1219 File
    1220 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1221 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1222 hp.set_threshold_parameters_from_gui() 
    1223 File
    1224 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1225 packages/chimerax/map/volume_viewer.py", line 2765, in
    1226 set_threshold_parameters_from_gui 
    1227 if tuple(s.rgba) != tuple(color): 
    1228 File
    1229 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1230 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1231 return tuple(c/255 for c in self.color) 
    1232 File
    1233 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1234 packages/chimerax/map/volume.py", line 1995, in get_color 
    1235 return Surface.get_color(self) 
    1236 File
    1237 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1238 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1239 return self._colors[0] 
    1240 TypeError: 'NoneType' object is not subscriptable 
    1241  
    1242 TypeError: 'NoneType' object is not subscriptable 
    1243  
    1244 File
    1245 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1246 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1247 return self._colors[0] 
    1248  
    1249 See log for complete Python traceback. 
    1250  
    1251 Traceback (most recent call last): 
    1252 File
    1253 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1254 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    1255 cb(event) 
    1256 File
    1257 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1258 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1259 d.redisplay_needed_cb() 
    1260 File
    1261 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1262 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1263 self.redisplay_needed() 
    1264 File
    1265 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1266 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1267 self.show_using_dialog_settings(self.active_volume) 
    1268 File
    1269 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1270 packages/chimerax/map/volume_viewer.py", line 360, in
    1271 show_using_dialog_settings 
    1272 p.use_gui_settings(dr) 
    1273 File
    1274 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1275 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1276 hp.set_threshold_parameters_from_gui() 
    1277 File
    1278 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1279 packages/chimerax/map/volume_viewer.py", line 2765, in
    1280 set_threshold_parameters_from_gui 
    1281 if tuple(s.rgba) != tuple(color): 
    1282 File
    1283 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1284 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1285 return tuple(c/255 for c in self.color) 
    1286 File
    1287 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1288 packages/chimerax/map/volume.py", line 1995, in get_color 
    1289 return Surface.get_color(self) 
    1290 File
    1291 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1292 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1293 return self._colors[0] 
    1294 TypeError: 'NoneType' object is not subscriptable 
    1295  
    1296 TypeError: 'NoneType' object is not subscriptable 
    1297  
    1298 File
    1299 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1300 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1301 return self._colors[0] 
    1302  
    1303 See log for complete Python traceback. 
    1304  
    1305 Traceback (most recent call last): 
    1306 File
    1307 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1308 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    1309 cb(event) 
    1310 File
    1311 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1312 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    1313 cb(self.markers[i]) 
    1314 File
    1315 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1316 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    1317 self.select_data_cb() 
    1318 File
    1319 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1320 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1321 d.redisplay_needed_cb() 
    1322 File
    1323 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1324 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1325 self.redisplay_needed() 
    1326 File
    1327 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1328 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1329 self.show_using_dialog_settings(self.active_volume) 
    1330 File
    1331 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1332 packages/chimerax/map/volume_viewer.py", line 360, in
    1333 show_using_dialog_settings 
    1334 p.use_gui_settings(dr) 
    1335 File
    1336 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1337 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1338 hp.set_threshold_parameters_from_gui() 
    1339 File
    1340 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1341 packages/chimerax/map/volume_viewer.py", line 2765, in
    1342 set_threshold_parameters_from_gui 
    1343 if tuple(s.rgba) != tuple(color): 
    1344 File
    1345 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1346 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1347 return tuple(c/255 for c in self.color) 
    1348 File
    1349 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1350 packages/chimerax/map/volume.py", line 1995, in get_color 
    1351 return Surface.get_color(self) 
    1352 File
    1353 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1354 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1355 return self._colors[0] 
    1356 TypeError: 'NoneType' object is not subscriptable 
    1357  
    1358 TypeError: 'NoneType' object is not subscriptable 
    1359  
    1360 File
    1361 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1362 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1363 return self._colors[0] 
    1364  
    1365 See log for complete Python traceback. 
    1366  
    1367 Traceback (most recent call last): 
    1368 File
    1369 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1370 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1371 self._drag(event) 
    1372 File
    1373 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1374 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1375 cb(event) 
    1376 File
    1377 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1378 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1379 cb(m) 
    1380 File
    1381 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1382 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1383 self.select_data_cb() # Causes redisplay using GUI settings 
    1384 File
    1385 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1386 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1387 d.redisplay_needed_cb() 
    1388 File
    1389 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1390 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1391 self.redisplay_needed() 
    1392 File
    1393 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1394 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1395 self.show_using_dialog_settings(self.active_volume) 
    1396 File
    1397 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1398 packages/chimerax/map/volume_viewer.py", line 360, in
    1399 show_using_dialog_settings 
    1400 p.use_gui_settings(dr) 
    1401 File
    1402 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1403 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1404 hp.set_threshold_parameters_from_gui() 
    1405 File
    1406 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1407 packages/chimerax/map/volume_viewer.py", line 2765, in
    1408 set_threshold_parameters_from_gui 
    1409 if tuple(s.rgba) != tuple(color): 
    1410 File
    1411 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1412 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1413 return tuple(c/255 for c in self.color) 
    1414 File
    1415 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1416 packages/chimerax/map/volume.py", line 1995, in get_color 
    1417 return Surface.get_color(self) 
    1418 File
    1419 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1420 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1421 return self._colors[0] 
    1422 TypeError: 'NoneType' object is not subscriptable 
    1423  
    1424 TypeError: 'NoneType' object is not subscriptable 
    1425  
    1426 File
    1427 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1428 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1429 return self._colors[0] 
    1430  
    1431 See log for complete Python traceback. 
    1432  
    1433 Traceback (most recent call last): 
    1434 File
    1435 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1436 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1437 self._drag(event) 
    1438 File
    1439 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1440 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1441 cb(event) 
    1442 File
    1443 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1444 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1445 cb(m) 
    1446 File
    1447 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1448 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1449 self.select_data_cb() # Causes redisplay using GUI settings 
    1450 File
    1451 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1452 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1453 d.redisplay_needed_cb() 
    1454 File
    1455 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1456 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1457 self.redisplay_needed() 
    1458 File
    1459 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1460 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1461 self.show_using_dialog_settings(self.active_volume) 
    1462 File
    1463 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1464 packages/chimerax/map/volume_viewer.py", line 360, in
    1465 show_using_dialog_settings 
    1466 p.use_gui_settings(dr) 
    1467 File
    1468 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1469 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1470 hp.set_threshold_parameters_from_gui() 
    1471 File
    1472 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1473 packages/chimerax/map/volume_viewer.py", line 2765, in
    1474 set_threshold_parameters_from_gui 
    1475 if tuple(s.rgba) != tuple(color): 
    1476 File
    1477 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1478 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1479 return tuple(c/255 for c in self.color) 
    1480 File
    1481 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1482 packages/chimerax/map/volume.py", line 1995, in get_color 
    1483 return Surface.get_color(self) 
    1484 File
    1485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1486 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1487 return self._colors[0] 
    1488 TypeError: 'NoneType' object is not subscriptable 
    1489  
    1490 TypeError: 'NoneType' object is not subscriptable 
    1491  
    1492 File
    1493 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1494 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1495 return self._colors[0] 
    1496  
    1497 See log for complete Python traceback. 
    1498  
    1499 Traceback (most recent call last): 
    1500 File
    1501 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1502 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1503 self._drag(event) 
    1504 File
    1505 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1506 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1507 cb(event) 
    1508 File
    1509 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1510 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1511 cb(m) 
    1512 File
    1513 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1514 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1515 self.select_data_cb() # Causes redisplay using GUI settings 
    1516 File
    1517 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1518 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1519 d.redisplay_needed_cb() 
    1520 File
    1521 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1522 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1523 self.redisplay_needed() 
    1524 File
    1525 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1526 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1527 self.show_using_dialog_settings(self.active_volume) 
    1528 File
    1529 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1530 packages/chimerax/map/volume_viewer.py", line 360, in
    1531 show_using_dialog_settings 
    1532 p.use_gui_settings(dr) 
    1533 File
    1534 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1535 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1536 hp.set_threshold_parameters_from_gui() 
    1537 File
    1538 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1539 packages/chimerax/map/volume_viewer.py", line 2765, in
    1540 set_threshold_parameters_from_gui 
    1541 if tuple(s.rgba) != tuple(color): 
    1542 File
    1543 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1544 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1545 return tuple(c/255 for c in self.color) 
    1546 File
    1547 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1548 packages/chimerax/map/volume.py", line 1995, in get_color 
    1549 return Surface.get_color(self) 
    1550 File
    1551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1552 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1553 return self._colors[0] 
    1554 TypeError: 'NoneType' object is not subscriptable 
    1555  
    1556 TypeError: 'NoneType' object is not subscriptable 
    1557  
    1558 File
    1559 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1560 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1561 return self._colors[0] 
    1562  
    1563 See log for complete Python traceback. 
    1564  
    1565 Traceback (most recent call last): 
    1566 File
    1567 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1568 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1569 self._drag(event) 
    1570 File
    1571 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1572 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1573 cb(event) 
    1574 File
    1575 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1576 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1577 cb(m) 
    1578 File
    1579 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1580 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1581 self.select_data_cb() # Causes redisplay using GUI settings 
    1582 File
    1583 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1584 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1585 d.redisplay_needed_cb() 
    1586 File
    1587 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1588 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1589 self.redisplay_needed() 
    1590 File
    1591 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1592 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1593 self.show_using_dialog_settings(self.active_volume) 
    1594 File
    1595 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1596 packages/chimerax/map/volume_viewer.py", line 360, in
    1597 show_using_dialog_settings 
    1598 p.use_gui_settings(dr) 
    1599 File
    1600 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1601 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1602 hp.set_threshold_parameters_from_gui() 
    1603 File
    1604 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1605 packages/chimerax/map/volume_viewer.py", line 2765, in
    1606 set_threshold_parameters_from_gui 
    1607 if tuple(s.rgba) != tuple(color): 
    1608 File
    1609 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1610 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1611 return tuple(c/255 for c in self.color) 
    1612 File
    1613 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1614 packages/chimerax/map/volume.py", line 1995, in get_color 
    1615 return Surface.get_color(self) 
    1616 File
    1617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1618 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1619 return self._colors[0] 
    1620 TypeError: 'NoneType' object is not subscriptable 
    1621  
    1622 TypeError: 'NoneType' object is not subscriptable 
    1623  
    1624 File
    1625 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1626 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1627 return self._colors[0] 
    1628  
    1629 See log for complete Python traceback. 
    1630  
    1631 Traceback (most recent call last): 
    1632 File
    1633 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1634 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1635 self._drag(event) 
    1636 File
    1637 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1638 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1639 cb(event) 
    1640 File
    1641 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1642 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1643 cb(m) 
    1644 File
    1645 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1646 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1647 self.select_data_cb() # Causes redisplay using GUI settings 
    1648 File
    1649 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1650 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1651 d.redisplay_needed_cb() 
    1652 File
    1653 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1654 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1655 self.redisplay_needed() 
    1656 File
    1657 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1658 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1659 self.show_using_dialog_settings(self.active_volume) 
    1660 File
    1661 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1662 packages/chimerax/map/volume_viewer.py", line 360, in
    1663 show_using_dialog_settings 
    1664 p.use_gui_settings(dr) 
    1665 File
    1666 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1667 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1668 hp.set_threshold_parameters_from_gui() 
    1669 File
    1670 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1671 packages/chimerax/map/volume_viewer.py", line 2765, in
    1672 set_threshold_parameters_from_gui 
    1673 if tuple(s.rgba) != tuple(color): 
    1674 File
    1675 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1676 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1677 return tuple(c/255 for c in self.color) 
    1678 File
    1679 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1680 packages/chimerax/map/volume.py", line 1995, in get_color 
    1681 return Surface.get_color(self) 
    1682 File
    1683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1684 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1685 return self._colors[0] 
    1686 TypeError: 'NoneType' object is not subscriptable 
    1687  
    1688 TypeError: 'NoneType' object is not subscriptable 
    1689  
    1690 File
    1691 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1692 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1693 return self._colors[0] 
    1694  
    1695 See log for complete Python traceback. 
    1696  
    1697 Traceback (most recent call last): 
    1698 File
    1699 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1700 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1701 self._drag(event) 
    1702 File
    1703 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1704 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1705 cb(event) 
    1706 File
    1707 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1708 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1709 cb(m) 
    1710 File
    1711 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1712 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1713 self.select_data_cb() # Causes redisplay using GUI settings 
    1714 File
    1715 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1716 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1717 d.redisplay_needed_cb() 
    1718 File
    1719 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1720 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1721 self.redisplay_needed() 
    1722 File
    1723 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1724 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1725 self.show_using_dialog_settings(self.active_volume) 
    1726 File
    1727 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1728 packages/chimerax/map/volume_viewer.py", line 360, in
    1729 show_using_dialog_settings 
    1730 p.use_gui_settings(dr) 
    1731 File
    1732 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1733 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1734 hp.set_threshold_parameters_from_gui() 
    1735 File
    1736 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1737 packages/chimerax/map/volume_viewer.py", line 2765, in
    1738 set_threshold_parameters_from_gui 
    1739 if tuple(s.rgba) != tuple(color): 
    1740 File
    1741 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1742 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1743 return tuple(c/255 for c in self.color) 
    1744 File
    1745 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1746 packages/chimerax/map/volume.py", line 1995, in get_color 
    1747 return Surface.get_color(self) 
    1748 File
    1749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1750 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1751 return self._colors[0] 
    1752 TypeError: 'NoneType' object is not subscriptable 
    1753  
    1754 TypeError: 'NoneType' object is not subscriptable 
    1755  
    1756 File
    1757 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1758 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1759 return self._colors[0] 
    1760  
    1761 See log for complete Python traceback. 
    1762  
    1763 Traceback (most recent call last): 
    1764 File
    1765 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1766 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1767 self._drag(event) 
    1768 File
    1769 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1770 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1771 cb(event) 
    1772 File
    1773 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1774 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1775 cb(m) 
    1776 File
    1777 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1778 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1779 self.select_data_cb() # Causes redisplay using GUI settings 
    1780 File
    1781 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1782 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1783 d.redisplay_needed_cb() 
    1784 File
    1785 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1786 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1787 self.redisplay_needed() 
    1788 File
    1789 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1790 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1791 self.show_using_dialog_settings(self.active_volume) 
    1792 File
    1793 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1794 packages/chimerax/map/volume_viewer.py", line 360, in
    1795 show_using_dialog_settings 
    1796 p.use_gui_settings(dr) 
    1797 File
    1798 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1799 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1800 hp.set_threshold_parameters_from_gui() 
    1801 File
    1802 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1803 packages/chimerax/map/volume_viewer.py", line 2765, in
    1804 set_threshold_parameters_from_gui 
    1805 if tuple(s.rgba) != tuple(color): 
    1806 File
    1807 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1808 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1809 return tuple(c/255 for c in self.color) 
    1810 File
    1811 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1812 packages/chimerax/map/volume.py", line 1995, in get_color 
    1813 return Surface.get_color(self) 
    1814 File
    1815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1816 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1817 return self._colors[0] 
    1818 TypeError: 'NoneType' object is not subscriptable 
    1819  
    1820 TypeError: 'NoneType' object is not subscriptable 
    1821  
    1822 File
    1823 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1824 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1825 return self._colors[0] 
    1826  
    1827 See log for complete Python traceback. 
    1828  
    1829 Traceback (most recent call last): 
    1830 File
    1831 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1832 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1833 self._drag(event) 
    1834 File
    1835 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1836 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1837 cb(event) 
    1838 File
    1839 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1840 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1841 cb(m) 
    1842 File
    1843 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1844 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1845 self.select_data_cb() # Causes redisplay using GUI settings 
    1846 File
    1847 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1848 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1849 d.redisplay_needed_cb() 
    1850 File
    1851 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1852 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1853 self.redisplay_needed() 
    1854 File
    1855 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1856 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1857 self.show_using_dialog_settings(self.active_volume) 
    1858 File
    1859 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1860 packages/chimerax/map/volume_viewer.py", line 360, in
    1861 show_using_dialog_settings 
    1862 p.use_gui_settings(dr) 
    1863 File
    1864 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1865 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1866 hp.set_threshold_parameters_from_gui() 
    1867 File
    1868 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1869 packages/chimerax/map/volume_viewer.py", line 2765, in
    1870 set_threshold_parameters_from_gui 
    1871 if tuple(s.rgba) != tuple(color): 
    1872 File
    1873 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1874 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1875 return tuple(c/255 for c in self.color) 
    1876 File
    1877 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1878 packages/chimerax/map/volume.py", line 1995, in get_color 
    1879 return Surface.get_color(self) 
    1880 File
    1881 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1882 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1883 return self._colors[0] 
    1884 TypeError: 'NoneType' object is not subscriptable 
    1885  
    1886 TypeError: 'NoneType' object is not subscriptable 
    1887  
    1888 File
    1889 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1890 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1891 return self._colors[0] 
    1892  
    1893 See log for complete Python traceback. 
    1894  
    1895 Traceback (most recent call last): 
    1896 File
    1897 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1898 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1899 self._drag(event) 
    1900 File
    1901 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1902 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1903 cb(event) 
    1904 File
    1905 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1906 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1907 cb(m) 
    1908 File
    1909 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1910 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1911 self.select_data_cb() # Causes redisplay using GUI settings 
    1912 File
    1913 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1914 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1915 d.redisplay_needed_cb() 
    1916 File
    1917 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1918 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1919 self.redisplay_needed() 
    1920 File
    1921 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1922 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1923 self.show_using_dialog_settings(self.active_volume) 
    1924 File
    1925 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1926 packages/chimerax/map/volume_viewer.py", line 360, in
    1927 show_using_dialog_settings 
    1928 p.use_gui_settings(dr) 
    1929 File
    1930 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1931 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1932 hp.set_threshold_parameters_from_gui() 
    1933 File
    1934 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1935 packages/chimerax/map/volume_viewer.py", line 2765, in
    1936 set_threshold_parameters_from_gui 
    1937 if tuple(s.rgba) != tuple(color): 
    1938 File
    1939 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1940 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    1941 return tuple(c/255 for c in self.color) 
    1942 File
    1943 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1944 packages/chimerax/map/volume.py", line 1995, in get_color 
    1945 return Surface.get_color(self) 
    1946 File
    1947 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1948 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1949 return self._colors[0] 
    1950 TypeError: 'NoneType' object is not subscriptable 
    1951  
    1952 TypeError: 'NoneType' object is not subscriptable 
    1953  
    1954 File
    1955 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1956 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    1957 return self._colors[0] 
    1958  
    1959 See log for complete Python traceback. 
    1960  
    1961 Traceback (most recent call last): 
    1962 File
    1963 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1964 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    1965 self._drag(event) 
    1966 File
    1967 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1968 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    1969 cb(event) 
    1970 File
    1971 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1972 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    1973 cb(m) 
    1974 File
    1975 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1976 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    1977 self.select_data_cb() # Causes redisplay using GUI settings 
    1978 File
    1979 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1980 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    1981 d.redisplay_needed_cb() 
    1982 File
    1983 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1984 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    1985 self.redisplay_needed() 
    1986 File
    1987 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1988 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    1989 self.show_using_dialog_settings(self.active_volume) 
    1990 File
    1991 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1992 packages/chimerax/map/volume_viewer.py", line 360, in
    1993 show_using_dialog_settings 
    1994 p.use_gui_settings(dr) 
    1995 File
    1996 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    1997 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    1998 hp.set_threshold_parameters_from_gui() 
    1999 File
    2000 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2001 packages/chimerax/map/volume_viewer.py", line 2765, in
    2002 set_threshold_parameters_from_gui 
    2003 if tuple(s.rgba) != tuple(color): 
    2004 File
    2005 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2006 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2007 return tuple(c/255 for c in self.color) 
    2008 File
    2009 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2010 packages/chimerax/map/volume.py", line 1995, in get_color 
    2011 return Surface.get_color(self) 
    2012 File
    2013 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2014 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2015 return self._colors[0] 
    2016 TypeError: 'NoneType' object is not subscriptable 
    2017  
    2018 TypeError: 'NoneType' object is not subscriptable 
    2019  
    2020 File
    2021 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2022 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2023 return self._colors[0] 
    2024  
    2025 See log for complete Python traceback. 
    2026  
    2027 Traceback (most recent call last): 
    2028 File
    2029 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2030 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2031 self._drag(event) 
    2032 File
    2033 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2034 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2035 cb(event) 
    2036 File
    2037 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2038 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2039 cb(m) 
    2040 File
    2041 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2042 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2043 self.select_data_cb() # Causes redisplay using GUI settings 
    2044 File
    2045 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2046 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2047 d.redisplay_needed_cb() 
    2048 File
    2049 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2050 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2051 self.redisplay_needed() 
    2052 File
    2053 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2054 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2055 self.show_using_dialog_settings(self.active_volume) 
    2056 File
    2057 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2058 packages/chimerax/map/volume_viewer.py", line 360, in
    2059 show_using_dialog_settings 
    2060 p.use_gui_settings(dr) 
    2061 File
    2062 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2063 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2064 hp.set_threshold_parameters_from_gui() 
    2065 File
    2066 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2067 packages/chimerax/map/volume_viewer.py", line 2765, in
    2068 set_threshold_parameters_from_gui 
    2069 if tuple(s.rgba) != tuple(color): 
    2070 File
    2071 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2072 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2073 return tuple(c/255 for c in self.color) 
    2074 File
    2075 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2076 packages/chimerax/map/volume.py", line 1995, in get_color 
    2077 return Surface.get_color(self) 
    2078 File
    2079 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2080 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2081 return self._colors[0] 
    2082 TypeError: 'NoneType' object is not subscriptable 
    2083  
    2084 TypeError: 'NoneType' object is not subscriptable 
    2085  
    2086 File
    2087 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2088 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2089 return self._colors[0] 
    2090  
    2091 See log for complete Python traceback. 
    2092  
    2093 Traceback (most recent call last): 
    2094 File
    2095 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2096 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2097 self._drag(event) 
    2098 File
    2099 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2100 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2101 cb(event) 
    2102 File
    2103 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2104 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2105 cb(m) 
    2106 File
    2107 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2108 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2109 self.select_data_cb() # Causes redisplay using GUI settings 
    2110 File
    2111 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2112 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2113 d.redisplay_needed_cb() 
    2114 File
    2115 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2116 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2117 self.redisplay_needed() 
    2118 File
    2119 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2120 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2121 self.show_using_dialog_settings(self.active_volume) 
    2122 File
    2123 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2124 packages/chimerax/map/volume_viewer.py", line 360, in
    2125 show_using_dialog_settings 
    2126 p.use_gui_settings(dr) 
    2127 File
    2128 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2129 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2130 hp.set_threshold_parameters_from_gui() 
    2131 File
    2132 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2133 packages/chimerax/map/volume_viewer.py", line 2765, in
    2134 set_threshold_parameters_from_gui 
    2135 if tuple(s.rgba) != tuple(color): 
    2136 File
    2137 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2138 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2139 return tuple(c/255 for c in self.color) 
    2140 File
    2141 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2142 packages/chimerax/map/volume.py", line 1995, in get_color 
    2143 return Surface.get_color(self) 
    2144 File
    2145 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2146 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2147 return self._colors[0] 
    2148 TypeError: 'NoneType' object is not subscriptable 
    2149  
    2150 TypeError: 'NoneType' object is not subscriptable 
    2151  
    2152 File
    2153 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2154 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2155 return self._colors[0] 
    2156  
    2157 See log for complete Python traceback. 
    2158  
    2159 Traceback (most recent call last): 
    2160 File
    2161 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2162 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2163 self._drag(event) 
    2164 File
    2165 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2166 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2167 cb(event) 
    2168 File
    2169 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2170 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2171 cb(m) 
    2172 File
    2173 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2174 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2175 self.select_data_cb() # Causes redisplay using GUI settings 
    2176 File
    2177 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2178 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2179 d.redisplay_needed_cb() 
    2180 File
    2181 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2182 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2183 self.redisplay_needed() 
    2184 File
    2185 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2186 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2187 self.show_using_dialog_settings(self.active_volume) 
    2188 File
    2189 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2190 packages/chimerax/map/volume_viewer.py", line 360, in
    2191 show_using_dialog_settings 
    2192 p.use_gui_settings(dr) 
    2193 File
    2194 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2195 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2196 hp.set_threshold_parameters_from_gui() 
    2197 File
    2198 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2199 packages/chimerax/map/volume_viewer.py", line 2765, in
    2200 set_threshold_parameters_from_gui 
    2201 if tuple(s.rgba) != tuple(color): 
    2202 File
    2203 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2204 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2205 return tuple(c/255 for c in self.color) 
    2206 File
    2207 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2208 packages/chimerax/map/volume.py", line 1995, in get_color 
    2209 return Surface.get_color(self) 
    2210 File
    2211 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2212 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2213 return self._colors[0] 
    2214 TypeError: 'NoneType' object is not subscriptable 
    2215  
    2216 TypeError: 'NoneType' object is not subscriptable 
    2217  
    2218 File
    2219 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2220 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2221 return self._colors[0] 
    2222  
    2223 See log for complete Python traceback. 
    2224  
    2225 Traceback (most recent call last): 
    2226 File
    2227 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2228 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2229 self._drag(event) 
    2230 File
    2231 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2232 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2233 cb(event) 
    2234 File
    2235 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2236 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2237 cb(m) 
    2238 File
    2239 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2240 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2241 self.select_data_cb() # Causes redisplay using GUI settings 
    2242 File
    2243 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2244 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2245 d.redisplay_needed_cb() 
    2246 File
    2247 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2248 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2249 self.redisplay_needed() 
    2250 File
    2251 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2252 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2253 self.show_using_dialog_settings(self.active_volume) 
    2254 File
    2255 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2256 packages/chimerax/map/volume_viewer.py", line 360, in
    2257 show_using_dialog_settings 
    2258 p.use_gui_settings(dr) 
    2259 File
    2260 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2261 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2262 hp.set_threshold_parameters_from_gui() 
    2263 File
    2264 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2265 packages/chimerax/map/volume_viewer.py", line 2765, in
    2266 set_threshold_parameters_from_gui 
    2267 if tuple(s.rgba) != tuple(color): 
    2268 File
    2269 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2270 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2271 return tuple(c/255 for c in self.color) 
    2272 File
    2273 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2274 packages/chimerax/map/volume.py", line 1995, in get_color 
    2275 return Surface.get_color(self) 
    2276 File
    2277 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2278 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2279 return self._colors[0] 
    2280 TypeError: 'NoneType' object is not subscriptable 
    2281  
    2282 TypeError: 'NoneType' object is not subscriptable 
    2283  
    2284 File
    2285 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2286 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2287 return self._colors[0] 
    2288  
    2289 See log for complete Python traceback. 
    2290  
    2291 Traceback (most recent call last): 
    2292 File
    2293 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2294 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2295 self._drag(event) 
    2296 File
    2297 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2298 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2299 cb(event) 
    2300 File
    2301 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2302 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2303 cb(m) 
    2304 File
    2305 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2306 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2307 self.select_data_cb() # Causes redisplay using GUI settings 
    2308 File
    2309 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2310 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2311 d.redisplay_needed_cb() 
    2312 File
    2313 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2314 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2315 self.redisplay_needed() 
    2316 File
    2317 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2318 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2319 self.show_using_dialog_settings(self.active_volume) 
    2320 File
    2321 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2322 packages/chimerax/map/volume_viewer.py", line 360, in
    2323 show_using_dialog_settings 
    2324 p.use_gui_settings(dr) 
    2325 File
    2326 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2327 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2328 hp.set_threshold_parameters_from_gui() 
    2329 File
    2330 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2331 packages/chimerax/map/volume_viewer.py", line 2765, in
    2332 set_threshold_parameters_from_gui 
    2333 if tuple(s.rgba) != tuple(color): 
    2334 File
    2335 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2336 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2337 return tuple(c/255 for c in self.color) 
    2338 File
    2339 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2340 packages/chimerax/map/volume.py", line 1995, in get_color 
    2341 return Surface.get_color(self) 
    2342 File
    2343 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2344 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2345 return self._colors[0] 
    2346 TypeError: 'NoneType' object is not subscriptable 
    2347  
    2348 TypeError: 'NoneType' object is not subscriptable 
    2349  
    2350 File
    2351 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2352 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2353 return self._colors[0] 
    2354  
    2355 See log for complete Python traceback. 
    2356  
    2357 Traceback (most recent call last): 
    2358 File
    2359 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2360 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2361 self._drag(event) 
    2362 File
    2363 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2364 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2365 cb(event) 
    2366 File
    2367 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2368 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2369 cb(m) 
    2370 File
    2371 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2372 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2373 self.select_data_cb() # Causes redisplay using GUI settings 
    2374 File
    2375 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2376 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2377 d.redisplay_needed_cb() 
    2378 File
    2379 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2380 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2381 self.redisplay_needed() 
    2382 File
    2383 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2384 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2385 self.show_using_dialog_settings(self.active_volume) 
    2386 File
    2387 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2388 packages/chimerax/map/volume_viewer.py", line 360, in
    2389 show_using_dialog_settings 
    2390 p.use_gui_settings(dr) 
    2391 File
    2392 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2393 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2394 hp.set_threshold_parameters_from_gui() 
    2395 File
    2396 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2397 packages/chimerax/map/volume_viewer.py", line 2765, in
    2398 set_threshold_parameters_from_gui 
    2399 if tuple(s.rgba) != tuple(color): 
    2400 File
    2401 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2402 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2403 return tuple(c/255 for c in self.color) 
    2404 File
    2405 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2406 packages/chimerax/map/volume.py", line 1995, in get_color 
    2407 return Surface.get_color(self) 
    2408 File
    2409 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2410 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2411 return self._colors[0] 
    2412 TypeError: 'NoneType' object is not subscriptable 
    2413  
    2414 TypeError: 'NoneType' object is not subscriptable 
    2415  
    2416 File
    2417 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2418 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2419 return self._colors[0] 
    2420  
    2421 See log for complete Python traceback. 
    2422  
    2423 Traceback (most recent call last): 
    2424 File
    2425 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2426 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2427 self._drag(event) 
    2428 File
    2429 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2430 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2431 cb(event) 
    2432 File
    2433 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2434 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2435 cb(m) 
    2436 File
    2437 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2438 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2439 self.select_data_cb() # Causes redisplay using GUI settings 
    2440 File
    2441 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2442 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2443 d.redisplay_needed_cb() 
    2444 File
    2445 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2446 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2447 self.redisplay_needed() 
    2448 File
    2449 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2450 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2451 self.show_using_dialog_settings(self.active_volume) 
    2452 File
    2453 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2454 packages/chimerax/map/volume_viewer.py", line 360, in
    2455 show_using_dialog_settings 
    2456 p.use_gui_settings(dr) 
    2457 File
    2458 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2459 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2460 hp.set_threshold_parameters_from_gui() 
    2461 File
    2462 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2463 packages/chimerax/map/volume_viewer.py", line 2765, in
    2464 set_threshold_parameters_from_gui 
    2465 if tuple(s.rgba) != tuple(color): 
    2466 File
    2467 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2468 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2469 return tuple(c/255 for c in self.color) 
    2470 File
    2471 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2472 packages/chimerax/map/volume.py", line 1995, in get_color 
    2473 return Surface.get_color(self) 
    2474 File
    2475 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2476 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2477 return self._colors[0] 
    2478 TypeError: 'NoneType' object is not subscriptable 
    2479  
    2480 TypeError: 'NoneType' object is not subscriptable 
    2481  
    2482 File
    2483 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2484 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2485 return self._colors[0] 
    2486  
    2487 See log for complete Python traceback. 
    2488  
    2489 Traceback (most recent call last): 
    2490 File
    2491 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2492 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2493 self._drag(event) 
    2494 File
    2495 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2496 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2497 cb(event) 
    2498 File
    2499 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2500 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2501 cb(m) 
    2502 File
    2503 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2504 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2505 self.select_data_cb() # Causes redisplay using GUI settings 
    2506 File
    2507 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2508 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2509 d.redisplay_needed_cb() 
    2510 File
    2511 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2512 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2513 self.redisplay_needed() 
    2514 File
    2515 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2516 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2517 self.show_using_dialog_settings(self.active_volume) 
    2518 File
    2519 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2520 packages/chimerax/map/volume_viewer.py", line 360, in
    2521 show_using_dialog_settings 
    2522 p.use_gui_settings(dr) 
    2523 File
    2524 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2525 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2526 hp.set_threshold_parameters_from_gui() 
    2527 File
    2528 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2529 packages/chimerax/map/volume_viewer.py", line 2765, in
    2530 set_threshold_parameters_from_gui 
    2531 if tuple(s.rgba) != tuple(color): 
    2532 File
    2533 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2534 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2535 return tuple(c/255 for c in self.color) 
    2536 File
    2537 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2538 packages/chimerax/map/volume.py", line 1995, in get_color 
    2539 return Surface.get_color(self) 
    2540 File
    2541 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2542 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2543 return self._colors[0] 
    2544 TypeError: 'NoneType' object is not subscriptable 
    2545  
    2546 TypeError: 'NoneType' object is not subscriptable 
    2547  
    2548 File
    2549 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2550 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2551 return self._colors[0] 
    2552  
    2553 See log for complete Python traceback. 
    2554  
    2555 Traceback (most recent call last): 
    2556 File
    2557 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2558 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2559 self._drag(event) 
    2560 File
    2561 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2562 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2563 cb(event) 
    2564 File
    2565 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2566 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2567 cb(m) 
    2568 File
    2569 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2570 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2571 self.select_data_cb() # Causes redisplay using GUI settings 
    2572 File
    2573 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2574 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2575 d.redisplay_needed_cb() 
    2576 File
    2577 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2578 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2579 self.redisplay_needed() 
    2580 File
    2581 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2582 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2583 self.show_using_dialog_settings(self.active_volume) 
    2584 File
    2585 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2586 packages/chimerax/map/volume_viewer.py", line 360, in
    2587 show_using_dialog_settings 
    2588 p.use_gui_settings(dr) 
    2589 File
    2590 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2591 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2592 hp.set_threshold_parameters_from_gui() 
    2593 File
    2594 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2595 packages/chimerax/map/volume_viewer.py", line 2765, in
    2596 set_threshold_parameters_from_gui 
    2597 if tuple(s.rgba) != tuple(color): 
    2598 File
    2599 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2600 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2601 return tuple(c/255 for c in self.color) 
    2602 File
    2603 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2604 packages/chimerax/map/volume.py", line 1995, in get_color 
    2605 return Surface.get_color(self) 
    2606 File
    2607 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2608 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2609 return self._colors[0] 
    2610 TypeError: 'NoneType' object is not subscriptable 
    2611  
    2612 TypeError: 'NoneType' object is not subscriptable 
    2613  
    2614 File
    2615 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2616 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2617 return self._colors[0] 
    2618  
    2619 See log for complete Python traceback. 
    2620  
    2621 Traceback (most recent call last): 
    2622 File
    2623 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2624 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2625 self._drag(event) 
    2626 File
    2627 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2628 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2629 cb(event) 
    2630 File
    2631 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2632 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2633 cb(m) 
    2634 File
    2635 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2636 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2637 self.select_data_cb() # Causes redisplay using GUI settings 
    2638 File
    2639 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2640 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2641 d.redisplay_needed_cb() 
    2642 File
    2643 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2644 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2645 self.redisplay_needed() 
    2646 File
    2647 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2648 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2649 self.show_using_dialog_settings(self.active_volume) 
    2650 File
    2651 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2652 packages/chimerax/map/volume_viewer.py", line 360, in
    2653 show_using_dialog_settings 
    2654 p.use_gui_settings(dr) 
    2655 File
    2656 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2657 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2658 hp.set_threshold_parameters_from_gui() 
    2659 File
    2660 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2661 packages/chimerax/map/volume_viewer.py", line 2765, in
    2662 set_threshold_parameters_from_gui 
    2663 if tuple(s.rgba) != tuple(color): 
    2664 File
    2665 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2666 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2667 return tuple(c/255 for c in self.color) 
    2668 File
    2669 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2670 packages/chimerax/map/volume.py", line 1995, in get_color 
    2671 return Surface.get_color(self) 
    2672 File
    2673 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2674 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2675 return self._colors[0] 
    2676 TypeError: 'NoneType' object is not subscriptable 
    2677  
    2678 TypeError: 'NoneType' object is not subscriptable 
    2679  
    2680 File
    2681 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2682 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2683 return self._colors[0] 
    2684  
    2685 See log for complete Python traceback. 
    2686  
    2687 Traceback (most recent call last): 
    2688 File
    2689 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2690 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2691 self._drag(event) 
    2692 File
    2693 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2694 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2695 cb(event) 
    2696 File
    2697 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2698 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2699 cb(m) 
    2700 File
    2701 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2702 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2703 self.select_data_cb() # Causes redisplay using GUI settings 
    2704 File
    2705 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2706 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2707 d.redisplay_needed_cb() 
    2708 File
    2709 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2710 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2711 self.redisplay_needed() 
    2712 File
    2713 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2714 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2715 self.show_using_dialog_settings(self.active_volume) 
    2716 File
    2717 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2718 packages/chimerax/map/volume_viewer.py", line 360, in
    2719 show_using_dialog_settings 
    2720 p.use_gui_settings(dr) 
    2721 File
    2722 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2723 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2724 hp.set_threshold_parameters_from_gui() 
    2725 File
    2726 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2727 packages/chimerax/map/volume_viewer.py", line 2765, in
    2728 set_threshold_parameters_from_gui 
    2729 if tuple(s.rgba) != tuple(color): 
    2730 File
    2731 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2732 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2733 return tuple(c/255 for c in self.color) 
    2734 File
    2735 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2736 packages/chimerax/map/volume.py", line 1995, in get_color 
    2737 return Surface.get_color(self) 
    2738 File
    2739 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2740 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2741 return self._colors[0] 
    2742 TypeError: 'NoneType' object is not subscriptable 
    2743  
    2744 TypeError: 'NoneType' object is not subscriptable 
    2745  
    2746 File
    2747 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2748 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2749 return self._colors[0] 
    2750  
    2751 See log for complete Python traceback. 
    2752  
    2753 Traceback (most recent call last): 
    2754 File
    2755 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2756 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2757 self._drag(event) 
    2758 File
    2759 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2760 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2761 cb(event) 
    2762 File
    2763 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2764 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2765 cb(m) 
    2766 File
    2767 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2768 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2769 self.select_data_cb() # Causes redisplay using GUI settings 
    2770 File
    2771 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2772 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2773 d.redisplay_needed_cb() 
    2774 File
    2775 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2776 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2777 self.redisplay_needed() 
    2778 File
    2779 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2780 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2781 self.show_using_dialog_settings(self.active_volume) 
    2782 File
    2783 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2784 packages/chimerax/map/volume_viewer.py", line 360, in
    2785 show_using_dialog_settings 
    2786 p.use_gui_settings(dr) 
    2787 File
    2788 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2789 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2790 hp.set_threshold_parameters_from_gui() 
    2791 File
    2792 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2793 packages/chimerax/map/volume_viewer.py", line 2765, in
    2794 set_threshold_parameters_from_gui 
    2795 if tuple(s.rgba) != tuple(color): 
    2796 File
    2797 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2798 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2799 return tuple(c/255 for c in self.color) 
    2800 File
    2801 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2802 packages/chimerax/map/volume.py", line 1995, in get_color 
    2803 return Surface.get_color(self) 
    2804 File
    2805 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2806 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2807 return self._colors[0] 
    2808 TypeError: 'NoneType' object is not subscriptable 
    2809  
    2810 TypeError: 'NoneType' object is not subscriptable 
    2811  
    2812 File
    2813 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2814 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2815 return self._colors[0] 
    2816  
    2817 See log for complete Python traceback. 
    2818  
    2819 Traceback (most recent call last): 
    2820 File
    2821 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2822 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2823 self._drag(event) 
    2824 File
    2825 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2826 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2827 cb(event) 
    2828 File
    2829 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2830 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2831 cb(m) 
    2832 File
    2833 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2834 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2835 self.select_data_cb() # Causes redisplay using GUI settings 
    2836 File
    2837 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2838 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2839 d.redisplay_needed_cb() 
    2840 File
    2841 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2842 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2843 self.redisplay_needed() 
    2844 File
    2845 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2846 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2847 self.show_using_dialog_settings(self.active_volume) 
    2848 File
    2849 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2850 packages/chimerax/map/volume_viewer.py", line 360, in
    2851 show_using_dialog_settings 
    2852 p.use_gui_settings(dr) 
    2853 File
    2854 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2855 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2856 hp.set_threshold_parameters_from_gui() 
    2857 File
    2858 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2859 packages/chimerax/map/volume_viewer.py", line 2765, in
    2860 set_threshold_parameters_from_gui 
    2861 if tuple(s.rgba) != tuple(color): 
    2862 File
    2863 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2864 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2865 return tuple(c/255 for c in self.color) 
    2866 File
    2867 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2868 packages/chimerax/map/volume.py", line 1995, in get_color 
    2869 return Surface.get_color(self) 
    2870 File
    2871 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2872 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2873 return self._colors[0] 
    2874 TypeError: 'NoneType' object is not subscriptable 
    2875  
    2876 TypeError: 'NoneType' object is not subscriptable 
    2877  
    2878 File
    2879 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2880 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2881 return self._colors[0] 
    2882  
    2883 See log for complete Python traceback. 
    2884  
    2885 Traceback (most recent call last): 
    2886 File
    2887 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2888 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2889 self._drag(event) 
    2890 File
    2891 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2892 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2893 cb(event) 
    2894 File
    2895 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2896 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2897 cb(m) 
    2898 File
    2899 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2900 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2901 self.select_data_cb() # Causes redisplay using GUI settings 
    2902 File
    2903 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2904 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2905 d.redisplay_needed_cb() 
    2906 File
    2907 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2908 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2909 self.redisplay_needed() 
    2910 File
    2911 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2912 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2913 self.show_using_dialog_settings(self.active_volume) 
    2914 File
    2915 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2916 packages/chimerax/map/volume_viewer.py", line 360, in
    2917 show_using_dialog_settings 
    2918 p.use_gui_settings(dr) 
    2919 File
    2920 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2921 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2922 hp.set_threshold_parameters_from_gui() 
    2923 File
    2924 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2925 packages/chimerax/map/volume_viewer.py", line 2765, in
    2926 set_threshold_parameters_from_gui 
    2927 if tuple(s.rgba) != tuple(color): 
    2928 File
    2929 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2930 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2931 return tuple(c/255 for c in self.color) 
    2932 File
    2933 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2934 packages/chimerax/map/volume.py", line 1995, in get_color 
    2935 return Surface.get_color(self) 
    2936 File
    2937 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2938 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2939 return self._colors[0] 
    2940 TypeError: 'NoneType' object is not subscriptable 
    2941  
    2942 TypeError: 'NoneType' object is not subscriptable 
    2943  
    2944 File
    2945 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2946 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    2947 return self._colors[0] 
    2948  
    2949 See log for complete Python traceback. 
    2950  
    2951 Traceback (most recent call last): 
    2952 File
    2953 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2954 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    2955 self._drag(event) 
    2956 File
    2957 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2958 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    2959 cb(event) 
    2960 File
    2961 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2962 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    2963 cb(m) 
    2964 File
    2965 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2966 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    2967 self.select_data_cb() # Causes redisplay using GUI settings 
    2968 File
    2969 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2970 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    2971 d.redisplay_needed_cb() 
    2972 File
    2973 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2974 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    2975 self.redisplay_needed() 
    2976 File
    2977 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2978 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    2979 self.show_using_dialog_settings(self.active_volume) 
    2980 File
    2981 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2982 packages/chimerax/map/volume_viewer.py", line 360, in
    2983 show_using_dialog_settings 
    2984 p.use_gui_settings(dr) 
    2985 File
    2986 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2987 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    2988 hp.set_threshold_parameters_from_gui() 
    2989 File
    2990 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2991 packages/chimerax/map/volume_viewer.py", line 2765, in
    2992 set_threshold_parameters_from_gui 
    2993 if tuple(s.rgba) != tuple(color): 
    2994 File
    2995 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    2996 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    2997 return tuple(c/255 for c in self.color) 
    2998 File
    2999 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3000 packages/chimerax/map/volume.py", line 1995, in get_color 
    3001 return Surface.get_color(self) 
    3002 File
    3003 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3004 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3005 return self._colors[0] 
    3006 TypeError: 'NoneType' object is not subscriptable 
    3007  
    3008 TypeError: 'NoneType' object is not subscriptable 
    3009  
    3010 File
    3011 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3012 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3013 return self._colors[0] 
    3014  
    3015 See log for complete Python traceback. 
    3016  
    3017 Traceback (most recent call last): 
    3018 File
    3019 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3020 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3021 self._drag(event) 
    3022 File
    3023 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3024 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3025 cb(event) 
    3026 File
    3027 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3028 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3029 cb(m) 
    3030 File
    3031 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3032 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3033 self.select_data_cb() # Causes redisplay using GUI settings 
    3034 File
    3035 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3036 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3037 d.redisplay_needed_cb() 
    3038 File
    3039 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3040 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3041 self.redisplay_needed() 
    3042 File
    3043 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3044 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3045 self.show_using_dialog_settings(self.active_volume) 
    3046 File
    3047 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3048 packages/chimerax/map/volume_viewer.py", line 360, in
    3049 show_using_dialog_settings 
    3050 p.use_gui_settings(dr) 
    3051 File
    3052 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3053 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3054 hp.set_threshold_parameters_from_gui() 
    3055 File
    3056 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3057 packages/chimerax/map/volume_viewer.py", line 2765, in
    3058 set_threshold_parameters_from_gui 
    3059 if tuple(s.rgba) != tuple(color): 
    3060 File
    3061 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3062 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3063 return tuple(c/255 for c in self.color) 
    3064 File
    3065 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3066 packages/chimerax/map/volume.py", line 1995, in get_color 
    3067 return Surface.get_color(self) 
    3068 File
    3069 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3070 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3071 return self._colors[0] 
    3072 TypeError: 'NoneType' object is not subscriptable 
    3073  
    3074 TypeError: 'NoneType' object is not subscriptable 
    3075  
    3076 File
    3077 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3078 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3079 return self._colors[0] 
    3080  
    3081 See log for complete Python traceback. 
    3082  
    3083 Traceback (most recent call last): 
    3084 File
    3085 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3086 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3087 self._drag(event) 
    3088 File
    3089 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3090 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3091 cb(event) 
    3092 File
    3093 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3094 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3095 cb(m) 
    3096 File
    3097 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3098 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3099 self.select_data_cb() # Causes redisplay using GUI settings 
    3100 File
    3101 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3102 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3103 d.redisplay_needed_cb() 
    3104 File
    3105 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3106 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3107 self.redisplay_needed() 
    3108 File
    3109 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3110 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3111 self.show_using_dialog_settings(self.active_volume) 
    3112 File
    3113 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3114 packages/chimerax/map/volume_viewer.py", line 360, in
    3115 show_using_dialog_settings 
    3116 p.use_gui_settings(dr) 
    3117 File
    3118 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3119 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3120 hp.set_threshold_parameters_from_gui() 
    3121 File
    3122 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3123 packages/chimerax/map/volume_viewer.py", line 2765, in
    3124 set_threshold_parameters_from_gui 
    3125 if tuple(s.rgba) != tuple(color): 
    3126 File
    3127 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3128 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3129 return tuple(c/255 for c in self.color) 
    3130 File
    3131 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3132 packages/chimerax/map/volume.py", line 1995, in get_color 
    3133 return Surface.get_color(self) 
    3134 File
    3135 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3136 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3137 return self._colors[0] 
    3138 TypeError: 'NoneType' object is not subscriptable 
    3139  
    3140 TypeError: 'NoneType' object is not subscriptable 
    3141  
    3142 File
    3143 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3144 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3145 return self._colors[0] 
    3146  
    3147 See log for complete Python traceback. 
    3148  
    3149 Traceback (most recent call last): 
    3150 File
    3151 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3152 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3153 self._drag(event) 
    3154 File
    3155 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3156 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3157 cb(event) 
    3158 File
    3159 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3160 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3161 cb(m) 
    3162 File
    3163 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3164 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3165 self.select_data_cb() # Causes redisplay using GUI settings 
    3166 File
    3167 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3168 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3169 d.redisplay_needed_cb() 
    3170 File
    3171 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3172 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3173 self.redisplay_needed() 
    3174 File
    3175 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3176 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3177 self.show_using_dialog_settings(self.active_volume) 
    3178 File
    3179 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3180 packages/chimerax/map/volume_viewer.py", line 360, in
    3181 show_using_dialog_settings 
    3182 p.use_gui_settings(dr) 
    3183 File
    3184 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3185 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3186 hp.set_threshold_parameters_from_gui() 
    3187 File
    3188 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3189 packages/chimerax/map/volume_viewer.py", line 2765, in
    3190 set_threshold_parameters_from_gui 
    3191 if tuple(s.rgba) != tuple(color): 
    3192 File
    3193 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3194 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3195 return tuple(c/255 for c in self.color) 
    3196 File
    3197 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3198 packages/chimerax/map/volume.py", line 1995, in get_color 
    3199 return Surface.get_color(self) 
    3200 File
    3201 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3202 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3203 return self._colors[0] 
    3204 TypeError: 'NoneType' object is not subscriptable 
    3205  
    3206 TypeError: 'NoneType' object is not subscriptable 
    3207  
    3208 File
    3209 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3210 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3211 return self._colors[0] 
    3212  
    3213 See log for complete Python traceback. 
    3214  
    3215 Traceback (most recent call last): 
    3216 File
    3217 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3218 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3219 self._drag(event) 
    3220 File
    3221 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3222 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3223 cb(event) 
    3224 File
    3225 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3226 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3227 cb(m) 
    3228 File
    3229 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3230 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3231 self.select_data_cb() # Causes redisplay using GUI settings 
    3232 File
    3233 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3234 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3235 d.redisplay_needed_cb() 
    3236 File
    3237 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3238 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3239 self.redisplay_needed() 
    3240 File
    3241 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3242 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3243 self.show_using_dialog_settings(self.active_volume) 
    3244 File
    3245 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3246 packages/chimerax/map/volume_viewer.py", line 360, in
    3247 show_using_dialog_settings 
    3248 p.use_gui_settings(dr) 
    3249 File
    3250 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3251 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3252 hp.set_threshold_parameters_from_gui() 
    3253 File
    3254 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3255 packages/chimerax/map/volume_viewer.py", line 2765, in
    3256 set_threshold_parameters_from_gui 
    3257 if tuple(s.rgba) != tuple(color): 
    3258 File
    3259 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3260 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3261 return tuple(c/255 for c in self.color) 
    3262 File
    3263 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3264 packages/chimerax/map/volume.py", line 1995, in get_color 
    3265 return Surface.get_color(self) 
    3266 File
    3267 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3268 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3269 return self._colors[0] 
    3270 TypeError: 'NoneType' object is not subscriptable 
    3271  
    3272 TypeError: 'NoneType' object is not subscriptable 
    3273  
    3274 File
    3275 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3276 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3277 return self._colors[0] 
    3278  
    3279 See log for complete Python traceback. 
    3280  
    3281 Traceback (most recent call last): 
    3282 File
    3283 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3284 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3285 self._drag(event) 
    3286 File
    3287 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3288 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3289 cb(event) 
    3290 File
    3291 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3292 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3293 cb(m) 
    3294 File
    3295 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3296 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3297 self.select_data_cb() # Causes redisplay using GUI settings 
    3298 File
    3299 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3300 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3301 d.redisplay_needed_cb() 
    3302 File
    3303 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3304 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3305 self.redisplay_needed() 
    3306 File
    3307 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3308 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3309 self.show_using_dialog_settings(self.active_volume) 
    3310 File
    3311 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3312 packages/chimerax/map/volume_viewer.py", line 360, in
    3313 show_using_dialog_settings 
    3314 p.use_gui_settings(dr) 
    3315 File
    3316 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3317 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3318 hp.set_threshold_parameters_from_gui() 
    3319 File
    3320 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3321 packages/chimerax/map/volume_viewer.py", line 2765, in
    3322 set_threshold_parameters_from_gui 
    3323 if tuple(s.rgba) != tuple(color): 
    3324 File
    3325 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3326 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3327 return tuple(c/255 for c in self.color) 
    3328 File
    3329 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3330 packages/chimerax/map/volume.py", line 1995, in get_color 
    3331 return Surface.get_color(self) 
    3332 File
    3333 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3334 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3335 return self._colors[0] 
    3336 TypeError: 'NoneType' object is not subscriptable 
    3337  
    3338 TypeError: 'NoneType' object is not subscriptable 
    3339  
    3340 File
    3341 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3342 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3343 return self._colors[0] 
    3344  
    3345 See log for complete Python traceback. 
    3346  
    3347 Traceback (most recent call last): 
    3348 File
    3349 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3350 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3351 self._drag(event) 
    3352 File
    3353 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3354 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3355 cb(event) 
    3356 File
    3357 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3358 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3359 cb(m) 
    3360 File
    3361 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3362 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3363 self.select_data_cb() # Causes redisplay using GUI settings 
    3364 File
    3365 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3366 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3367 d.redisplay_needed_cb() 
    3368 File
    3369 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3370 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3371 self.redisplay_needed() 
    3372 File
    3373 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3374 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3375 self.show_using_dialog_settings(self.active_volume) 
    3376 File
    3377 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3378 packages/chimerax/map/volume_viewer.py", line 360, in
    3379 show_using_dialog_settings 
    3380 p.use_gui_settings(dr) 
    3381 File
    3382 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3383 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3384 hp.set_threshold_parameters_from_gui() 
    3385 File
    3386 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3387 packages/chimerax/map/volume_viewer.py", line 2765, in
    3388 set_threshold_parameters_from_gui 
    3389 if tuple(s.rgba) != tuple(color): 
    3390 File
    3391 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3392 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3393 return tuple(c/255 for c in self.color) 
    3394 File
    3395 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3396 packages/chimerax/map/volume.py", line 1995, in get_color 
    3397 return Surface.get_color(self) 
    3398 File
    3399 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3400 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3401 return self._colors[0] 
    3402 TypeError: 'NoneType' object is not subscriptable 
    3403  
    3404 TypeError: 'NoneType' object is not subscriptable 
    3405  
    3406 File
    3407 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3408 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3409 return self._colors[0] 
    3410  
    3411 See log for complete Python traceback. 
    3412  
    3413 Traceback (most recent call last): 
    3414 File
    3415 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3416 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3417 self._drag(event) 
    3418 File
    3419 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3420 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3421 cb(event) 
    3422 File
    3423 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3424 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3425 cb(m) 
    3426 File
    3427 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3428 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3429 self.select_data_cb() # Causes redisplay using GUI settings 
    3430 File
    3431 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3432 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3433 d.redisplay_needed_cb() 
    3434 File
    3435 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3436 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3437 self.redisplay_needed() 
    3438 File
    3439 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3440 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3441 self.show_using_dialog_settings(self.active_volume) 
    3442 File
    3443 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3444 packages/chimerax/map/volume_viewer.py", line 360, in
    3445 show_using_dialog_settings 
    3446 p.use_gui_settings(dr) 
    3447 File
    3448 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3449 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3450 hp.set_threshold_parameters_from_gui() 
    3451 File
    3452 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3453 packages/chimerax/map/volume_viewer.py", line 2765, in
    3454 set_threshold_parameters_from_gui 
    3455 if tuple(s.rgba) != tuple(color): 
    3456 File
    3457 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3458 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3459 return tuple(c/255 for c in self.color) 
    3460 File
    3461 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3462 packages/chimerax/map/volume.py", line 1995, in get_color 
    3463 return Surface.get_color(self) 
    3464 File
    3465 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3466 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3467 return self._colors[0] 
    3468 TypeError: 'NoneType' object is not subscriptable 
    3469  
    3470 TypeError: 'NoneType' object is not subscriptable 
    3471  
    3472 File
    3473 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3474 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3475 return self._colors[0] 
    3476  
    3477 See log for complete Python traceback. 
    3478  
    3479 Traceback (most recent call last): 
    3480 File
    3481 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3482 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3483 self._drag(event) 
    3484 File
    3485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3486 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3487 cb(event) 
    3488 File
    3489 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3490 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3491 cb(m) 
    3492 File
    3493 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3494 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3495 self.select_data_cb() # Causes redisplay using GUI settings 
    3496 File
    3497 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3498 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3499 d.redisplay_needed_cb() 
    3500 File
    3501 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3502 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3503 self.redisplay_needed() 
    3504 File
    3505 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3506 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3507 self.show_using_dialog_settings(self.active_volume) 
    3508 File
    3509 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3510 packages/chimerax/map/volume_viewer.py", line 360, in
    3511 show_using_dialog_settings 
    3512 p.use_gui_settings(dr) 
    3513 File
    3514 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3515 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3516 hp.set_threshold_parameters_from_gui() 
    3517 File
    3518 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3519 packages/chimerax/map/volume_viewer.py", line 2765, in
    3520 set_threshold_parameters_from_gui 
    3521 if tuple(s.rgba) != tuple(color): 
    3522 File
    3523 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3524 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3525 return tuple(c/255 for c in self.color) 
    3526 File
    3527 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3528 packages/chimerax/map/volume.py", line 1995, in get_color 
    3529 return Surface.get_color(self) 
    3530 File
    3531 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3532 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3533 return self._colors[0] 
    3534 TypeError: 'NoneType' object is not subscriptable 
    3535  
    3536 TypeError: 'NoneType' object is not subscriptable 
    3537  
    3538 File
    3539 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3540 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3541 return self._colors[0] 
    3542  
    3543 See log for complete Python traceback. 
    3544  
    3545 Traceback (most recent call last): 
    3546 File
    3547 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3548 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3549 self._drag(event) 
    3550 File
    3551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3552 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3553 cb(event) 
    3554 File
    3555 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3556 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3557 cb(m) 
    3558 File
    3559 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3560 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3561 self.select_data_cb() # Causes redisplay using GUI settings 
    3562 File
    3563 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3564 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3565 d.redisplay_needed_cb() 
    3566 File
    3567 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3568 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3569 self.redisplay_needed() 
    3570 File
    3571 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3572 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3573 self.show_using_dialog_settings(self.active_volume) 
    3574 File
    3575 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3576 packages/chimerax/map/volume_viewer.py", line 360, in
    3577 show_using_dialog_settings 
    3578 p.use_gui_settings(dr) 
    3579 File
    3580 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3581 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3582 hp.set_threshold_parameters_from_gui() 
    3583 File
    3584 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3585 packages/chimerax/map/volume_viewer.py", line 2765, in
    3586 set_threshold_parameters_from_gui 
    3587 if tuple(s.rgba) != tuple(color): 
    3588 File
    3589 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3590 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3591 return tuple(c/255 for c in self.color) 
    3592 File
    3593 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3594 packages/chimerax/map/volume.py", line 1995, in get_color 
    3595 return Surface.get_color(self) 
    3596 File
    3597 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3598 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3599 return self._colors[0] 
    3600 TypeError: 'NoneType' object is not subscriptable 
    3601  
    3602 TypeError: 'NoneType' object is not subscriptable 
    3603  
    3604 File
    3605 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3606 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3607 return self._colors[0] 
    3608  
    3609 See log for complete Python traceback. 
    3610  
    3611 Traceback (most recent call last): 
    3612 File
    3613 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3614 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3615 self._drag(event) 
    3616 File
    3617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3618 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3619 cb(event) 
    3620 File
    3621 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3622 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3623 cb(m) 
    3624 File
    3625 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3626 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3627 self.select_data_cb() # Causes redisplay using GUI settings 
    3628 File
    3629 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3630 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3631 d.redisplay_needed_cb() 
    3632 File
    3633 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3634 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3635 self.redisplay_needed() 
    3636 File
    3637 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3638 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3639 self.show_using_dialog_settings(self.active_volume) 
    3640 File
    3641 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3642 packages/chimerax/map/volume_viewer.py", line 360, in
    3643 show_using_dialog_settings 
    3644 p.use_gui_settings(dr) 
    3645 File
    3646 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3647 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3648 hp.set_threshold_parameters_from_gui() 
    3649 File
    3650 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3651 packages/chimerax/map/volume_viewer.py", line 2765, in
    3652 set_threshold_parameters_from_gui 
    3653 if tuple(s.rgba) != tuple(color): 
    3654 File
    3655 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3656 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3657 return tuple(c/255 for c in self.color) 
    3658 File
    3659 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3660 packages/chimerax/map/volume.py", line 1995, in get_color 
    3661 return Surface.get_color(self) 
    3662 File
    3663 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3664 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3665 return self._colors[0] 
    3666 TypeError: 'NoneType' object is not subscriptable 
    3667  
    3668 TypeError: 'NoneType' object is not subscriptable 
    3669  
    3670 File
    3671 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3672 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3673 return self._colors[0] 
    3674  
    3675 See log for complete Python traceback. 
    3676  
    3677 Traceback (most recent call last): 
    3678 File
    3679 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3680 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3681 self._drag(event) 
    3682 File
    3683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3684 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3685 cb(event) 
    3686 File
    3687 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3688 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3689 cb(m) 
    3690 File
    3691 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3692 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3693 self.select_data_cb() # Causes redisplay using GUI settings 
    3694 File
    3695 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3696 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3697 d.redisplay_needed_cb() 
    3698 File
    3699 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3700 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3701 self.redisplay_needed() 
    3702 File
    3703 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3704 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3705 self.show_using_dialog_settings(self.active_volume) 
    3706 File
    3707 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3708 packages/chimerax/map/volume_viewer.py", line 360, in
    3709 show_using_dialog_settings 
    3710 p.use_gui_settings(dr) 
    3711 File
    3712 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3713 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3714 hp.set_threshold_parameters_from_gui() 
    3715 File
    3716 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3717 packages/chimerax/map/volume_viewer.py", line 2765, in
    3718 set_threshold_parameters_from_gui 
    3719 if tuple(s.rgba) != tuple(color): 
    3720 File
    3721 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3722 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3723 return tuple(c/255 for c in self.color) 
    3724 File
    3725 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3726 packages/chimerax/map/volume.py", line 1995, in get_color 
    3727 return Surface.get_color(self) 
    3728 File
    3729 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3730 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3731 return self._colors[0] 
    3732 TypeError: 'NoneType' object is not subscriptable 
    3733  
    3734 TypeError: 'NoneType' object is not subscriptable 
    3735  
    3736 File
    3737 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3738 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3739 return self._colors[0] 
    3740  
    3741 See log for complete Python traceback. 
    3742  
    3743 Traceback (most recent call last): 
    3744 File
    3745 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3746 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3747 self._drag(event) 
    3748 File
    3749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3750 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3751 cb(event) 
    3752 File
    3753 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3754 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3755 cb(m) 
    3756 File
    3757 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3758 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3759 self.select_data_cb() # Causes redisplay using GUI settings 
    3760 File
    3761 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3762 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3763 d.redisplay_needed_cb() 
    3764 File
    3765 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3766 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3767 self.redisplay_needed() 
    3768 File
    3769 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3770 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3771 self.show_using_dialog_settings(self.active_volume) 
    3772 File
    3773 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3774 packages/chimerax/map/volume_viewer.py", line 360, in
    3775 show_using_dialog_settings 
    3776 p.use_gui_settings(dr) 
    3777 File
    3778 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3779 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3780 hp.set_threshold_parameters_from_gui() 
    3781 File
    3782 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3783 packages/chimerax/map/volume_viewer.py", line 2765, in
    3784 set_threshold_parameters_from_gui 
    3785 if tuple(s.rgba) != tuple(color): 
    3786 File
    3787 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3788 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3789 return tuple(c/255 for c in self.color) 
    3790 File
    3791 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3792 packages/chimerax/map/volume.py", line 1995, in get_color 
    3793 return Surface.get_color(self) 
    3794 File
    3795 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3796 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3797 return self._colors[0] 
    3798 TypeError: 'NoneType' object is not subscriptable 
    3799  
    3800 TypeError: 'NoneType' object is not subscriptable 
    3801  
    3802 File
    3803 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3804 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3805 return self._colors[0] 
    3806  
    3807 See log for complete Python traceback. 
    3808  
    3809 Traceback (most recent call last): 
    3810 File
    3811 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3812 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    3813 self._drag(event) 
    3814 File
    3815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3816 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3817 cb(event) 
    3818 File
    3819 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3820 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3821 cb(m) 
    3822 File
    3823 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3824 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3825 self.select_data_cb() # Causes redisplay using GUI settings 
    3826 File
    3827 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3828 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3829 d.redisplay_needed_cb() 
    3830 File
    3831 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3832 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3833 self.redisplay_needed() 
    3834 File
    3835 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3836 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3837 self.show_using_dialog_settings(self.active_volume) 
    3838 File
    3839 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3840 packages/chimerax/map/volume_viewer.py", line 360, in
    3841 show_using_dialog_settings 
    3842 p.use_gui_settings(dr) 
    3843 File
    3844 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3845 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3846 hp.set_threshold_parameters_from_gui() 
    3847 File
    3848 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3849 packages/chimerax/map/volume_viewer.py", line 2765, in
    3850 set_threshold_parameters_from_gui 
    3851 if tuple(s.rgba) != tuple(color): 
    3852 File
    3853 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3854 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3855 return tuple(c/255 for c in self.color) 
    3856 File
    3857 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3858 packages/chimerax/map/volume.py", line 1995, in get_color 
    3859 return Surface.get_color(self) 
    3860 File
    3861 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3862 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3863 return self._colors[0] 
    3864 TypeError: 'NoneType' object is not subscriptable 
    3865  
    3866 TypeError: 'NoneType' object is not subscriptable 
    3867  
    3868 File
    3869 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3870 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3871 return self._colors[0] 
    3872  
    3873 See log for complete Python traceback. 
    3874  
    3875 Traceback (most recent call last): 
    3876 File
    3877 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3878 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    3879 self._drag(event) 
    3880 File
    3881 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3882 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    3883 cb(event) 
    3884 File
    3885 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3886 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    3887 cb(m) 
    3888 File
    3889 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3890 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    3891 self.select_data_cb() # Causes redisplay using GUI settings 
    3892 File
    3893 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3894 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3895 d.redisplay_needed_cb() 
    3896 File
    3897 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3898 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3899 self.redisplay_needed() 
    3900 File
    3901 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3902 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3903 self.show_using_dialog_settings(self.active_volume) 
    3904 File
    3905 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3906 packages/chimerax/map/volume_viewer.py", line 360, in
    3907 show_using_dialog_settings 
    3908 p.use_gui_settings(dr) 
    3909 File
    3910 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3911 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3912 hp.set_threshold_parameters_from_gui() 
    3913 File
    3914 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3915 packages/chimerax/map/volume_viewer.py", line 2765, in
    3916 set_threshold_parameters_from_gui 
    3917 if tuple(s.rgba) != tuple(color): 
    3918 File
    3919 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3920 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3921 return tuple(c/255 for c in self.color) 
    3922 File
    3923 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3924 packages/chimerax/map/volume.py", line 1995, in get_color 
    3925 return Surface.get_color(self) 
    3926 File
    3927 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3928 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3929 return self._colors[0] 
    3930 TypeError: 'NoneType' object is not subscriptable 
    3931  
    3932 TypeError: 'NoneType' object is not subscriptable 
    3933  
    3934 File
    3935 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3936 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3937 return self._colors[0] 
    3938  
    3939 See log for complete Python traceback. 
    3940  
    3941 Traceback (most recent call last): 
    3942 File
    3943 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3944 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    3945 cb(event) 
    3946 File
    3947 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3948 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    3949 d.redisplay_needed_cb() 
    3950 File
    3951 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3952 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    3953 self.redisplay_needed() 
    3954 File
    3955 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3956 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    3957 self.show_using_dialog_settings(self.active_volume) 
    3958 File
    3959 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3960 packages/chimerax/map/volume_viewer.py", line 360, in
    3961 show_using_dialog_settings 
    3962 p.use_gui_settings(dr) 
    3963 File
    3964 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3965 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    3966 hp.set_threshold_parameters_from_gui() 
    3967 File
    3968 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3969 packages/chimerax/map/volume_viewer.py", line 2765, in
    3970 set_threshold_parameters_from_gui 
    3971 if tuple(s.rgba) != tuple(color): 
    3972 File
    3973 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3974 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    3975 return tuple(c/255 for c in self.color) 
    3976 File
    3977 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3978 packages/chimerax/map/volume.py", line 1995, in get_color 
    3979 return Surface.get_color(self) 
    3980 File
    3981 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3982 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3983 return self._colors[0] 
    3984 TypeError: 'NoneType' object is not subscriptable 
    3985  
    3986 TypeError: 'NoneType' object is not subscriptable 
    3987  
    3988 File
    3989 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3990 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    3991 return self._colors[0] 
    3992  
    3993 See log for complete Python traceback. 
    3994  
    3995 Traceback (most recent call last): 
    3996 File
    3997 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    3998 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    3999 cb(event) 
    4000 File
    4001 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4002 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    4003 cb(self.markers[i]) 
    4004 File
    4005 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4006 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    4007 self.select_data_cb() 
    4008 File
    4009 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4010 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4011 d.redisplay_needed_cb() 
    4012 File
    4013 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4014 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4015 self.redisplay_needed() 
    4016 File
    4017 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4018 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4019 self.show_using_dialog_settings(self.active_volume) 
    4020 File
    4021 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4022 packages/chimerax/map/volume_viewer.py", line 360, in
    4023 show_using_dialog_settings 
    4024 p.use_gui_settings(dr) 
    4025 File
    4026 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4027 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4028 hp.set_threshold_parameters_from_gui() 
    4029 File
    4030 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4031 packages/chimerax/map/volume_viewer.py", line 2765, in
    4032 set_threshold_parameters_from_gui 
    4033 if tuple(s.rgba) != tuple(color): 
    4034 File
    4035 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4036 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4037 return tuple(c/255 for c in self.color) 
    4038 File
    4039 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4040 packages/chimerax/map/volume.py", line 1995, in get_color 
    4041 return Surface.get_color(self) 
    4042 File
    4043 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4044 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4045 return self._colors[0] 
    4046 TypeError: 'NoneType' object is not subscriptable 
    4047  
    4048 TypeError: 'NoneType' object is not subscriptable 
    4049  
    4050 File
    4051 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4052 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4053 return self._colors[0] 
    4054  
    4055 See log for complete Python traceback. 
    4056  
    4057 Traceback (most recent call last): 
    4058 File
    4059 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4060 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4061 self._drag(event) 
    4062 File
    4063 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4064 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4065 cb(event) 
    4066 File
    4067 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4068 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4069 cb(m) 
    4070 File
    4071 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4072 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4073 self.select_data_cb() # Causes redisplay using GUI settings 
    4074 File
    4075 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4076 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4077 d.redisplay_needed_cb() 
    4078 File
    4079 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4080 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4081 self.redisplay_needed() 
    4082 File
    4083 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4084 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4085 self.show_using_dialog_settings(self.active_volume) 
    4086 File
    4087 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4088 packages/chimerax/map/volume_viewer.py", line 360, in
    4089 show_using_dialog_settings 
    4090 p.use_gui_settings(dr) 
    4091 File
    4092 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4093 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4094 hp.set_threshold_parameters_from_gui() 
    4095 File
    4096 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4097 packages/chimerax/map/volume_viewer.py", line 2765, in
    4098 set_threshold_parameters_from_gui 
    4099 if tuple(s.rgba) != tuple(color): 
    4100 File
    4101 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4102 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4103 return tuple(c/255 for c in self.color) 
    4104 File
    4105 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4106 packages/chimerax/map/volume.py", line 1995, in get_color 
    4107 return Surface.get_color(self) 
    4108 File
    4109 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4110 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4111 return self._colors[0] 
    4112 TypeError: 'NoneType' object is not subscriptable 
    4113  
    4114 TypeError: 'NoneType' object is not subscriptable 
    4115  
    4116 File
    4117 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4118 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4119 return self._colors[0] 
    4120  
    4121 See log for complete Python traceback. 
    4122  
    4123 Traceback (most recent call last): 
    4124 File
    4125 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4126 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4127 self._drag(event) 
    4128 File
    4129 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4130 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4131 cb(event) 
    4132 File
    4133 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4134 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4135 cb(m) 
    4136 File
    4137 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4138 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4139 self.select_data_cb() # Causes redisplay using GUI settings 
    4140 File
    4141 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4142 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4143 d.redisplay_needed_cb() 
    4144 File
    4145 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4146 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4147 self.redisplay_needed() 
    4148 File
    4149 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4150 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4151 self.show_using_dialog_settings(self.active_volume) 
    4152 File
    4153 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4154 packages/chimerax/map/volume_viewer.py", line 360, in
    4155 show_using_dialog_settings 
    4156 p.use_gui_settings(dr) 
    4157 File
    4158 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4159 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4160 hp.set_threshold_parameters_from_gui() 
    4161 File
    4162 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4163 packages/chimerax/map/volume_viewer.py", line 2765, in
    4164 set_threshold_parameters_from_gui 
    4165 if tuple(s.rgba) != tuple(color): 
    4166 File
    4167 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4168 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4169 return tuple(c/255 for c in self.color) 
    4170 File
    4171 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4172 packages/chimerax/map/volume.py", line 1995, in get_color 
    4173 return Surface.get_color(self) 
    4174 File
    4175 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4176 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4177 return self._colors[0] 
    4178 TypeError: 'NoneType' object is not subscriptable 
    4179  
    4180 TypeError: 'NoneType' object is not subscriptable 
    4181  
    4182 File
    4183 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4184 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4185 return self._colors[0] 
    4186  
    4187 See log for complete Python traceback. 
    4188  
    4189 Traceback (most recent call last): 
    4190 File
    4191 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4192 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4193 self._drag(event) 
    4194 File
    4195 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4196 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4197 cb(event) 
    4198 File
    4199 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4200 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4201 cb(m) 
    4202 File
    4203 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4204 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4205 self.select_data_cb() # Causes redisplay using GUI settings 
    4206 File
    4207 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4208 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4209 d.redisplay_needed_cb() 
    4210 File
    4211 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4212 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4213 self.redisplay_needed() 
    4214 File
    4215 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4216 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4217 self.show_using_dialog_settings(self.active_volume) 
    4218 File
    4219 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4220 packages/chimerax/map/volume_viewer.py", line 360, in
    4221 show_using_dialog_settings 
    4222 p.use_gui_settings(dr) 
    4223 File
    4224 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4225 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4226 hp.set_threshold_parameters_from_gui() 
    4227 File
    4228 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4229 packages/chimerax/map/volume_viewer.py", line 2765, in
    4230 set_threshold_parameters_from_gui 
    4231 if tuple(s.rgba) != tuple(color): 
    4232 File
    4233 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4234 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4235 return tuple(c/255 for c in self.color) 
    4236 File
    4237 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4238 packages/chimerax/map/volume.py", line 1995, in get_color 
    4239 return Surface.get_color(self) 
    4240 File
    4241 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4242 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4243 return self._colors[0] 
    4244 TypeError: 'NoneType' object is not subscriptable 
    4245  
    4246 TypeError: 'NoneType' object is not subscriptable 
    4247  
    4248 File
    4249 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4250 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4251 return self._colors[0] 
    4252  
    4253 See log for complete Python traceback. 
    4254  
    4255 Traceback (most recent call last): 
    4256 File
    4257 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4258 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4259 self._drag(event) 
    4260 File
    4261 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4262 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4263 cb(event) 
    4264 File
    4265 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4266 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4267 cb(m) 
    4268 File
    4269 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4270 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4271 self.select_data_cb() # Causes redisplay using GUI settings 
    4272 File
    4273 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4274 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4275 d.redisplay_needed_cb() 
    4276 File
    4277 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4278 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4279 self.redisplay_needed() 
    4280 File
    4281 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4282 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4283 self.show_using_dialog_settings(self.active_volume) 
    4284 File
    4285 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4286 packages/chimerax/map/volume_viewer.py", line 360, in
    4287 show_using_dialog_settings 
    4288 p.use_gui_settings(dr) 
    4289 File
    4290 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4291 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4292 hp.set_threshold_parameters_from_gui() 
    4293 File
    4294 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4295 packages/chimerax/map/volume_viewer.py", line 2765, in
    4296 set_threshold_parameters_from_gui 
    4297 if tuple(s.rgba) != tuple(color): 
    4298 File
    4299 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4300 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4301 return tuple(c/255 for c in self.color) 
    4302 File
    4303 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4304 packages/chimerax/map/volume.py", line 1995, in get_color 
    4305 return Surface.get_color(self) 
    4306 File
    4307 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4308 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4309 return self._colors[0] 
    4310 TypeError: 'NoneType' object is not subscriptable 
    4311  
    4312 TypeError: 'NoneType' object is not subscriptable 
    4313  
    4314 File
    4315 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4316 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4317 return self._colors[0] 
    4318  
    4319 See log for complete Python traceback. 
    4320  
    4321 Traceback (most recent call last): 
    4322 File
    4323 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4324 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4325 self._drag(event) 
    4326 File
    4327 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4328 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4329 cb(event) 
    4330 File
    4331 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4332 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4333 cb(m) 
    4334 File
    4335 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4336 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4337 self.select_data_cb() # Causes redisplay using GUI settings 
    4338 File
    4339 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4340 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4341 d.redisplay_needed_cb() 
    4342 File
    4343 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4344 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4345 self.redisplay_needed() 
    4346 File
    4347 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4348 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4349 self.show_using_dialog_settings(self.active_volume) 
    4350 File
    4351 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4352 packages/chimerax/map/volume_viewer.py", line 360, in
    4353 show_using_dialog_settings 
    4354 p.use_gui_settings(dr) 
    4355 File
    4356 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4357 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4358 hp.set_threshold_parameters_from_gui() 
    4359 File
    4360 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4361 packages/chimerax/map/volume_viewer.py", line 2765, in
    4362 set_threshold_parameters_from_gui 
    4363 if tuple(s.rgba) != tuple(color): 
    4364 File
    4365 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4366 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4367 return tuple(c/255 for c in self.color) 
    4368 File
    4369 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4370 packages/chimerax/map/volume.py", line 1995, in get_color 
    4371 return Surface.get_color(self) 
    4372 File
    4373 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4374 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4375 return self._colors[0] 
    4376 TypeError: 'NoneType' object is not subscriptable 
    4377  
    4378 TypeError: 'NoneType' object is not subscriptable 
    4379  
    4380 File
    4381 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4382 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4383 return self._colors[0] 
    4384  
    4385 See log for complete Python traceback. 
    4386  
    4387 Traceback (most recent call last): 
    4388 File
    4389 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4390 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4391 self._drag(event) 
    4392 File
    4393 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4394 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4395 cb(event) 
    4396 File
    4397 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4398 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4399 cb(m) 
    4400 File
    4401 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4402 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4403 self.select_data_cb() # Causes redisplay using GUI settings 
    4404 File
    4405 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4406 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4407 d.redisplay_needed_cb() 
    4408 File
    4409 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4410 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4411 self.redisplay_needed() 
    4412 File
    4413 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4414 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4415 self.show_using_dialog_settings(self.active_volume) 
    4416 File
    4417 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4418 packages/chimerax/map/volume_viewer.py", line 360, in
    4419 show_using_dialog_settings 
    4420 p.use_gui_settings(dr) 
    4421 File
    4422 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4423 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4424 hp.set_threshold_parameters_from_gui() 
    4425 File
    4426 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4427 packages/chimerax/map/volume_viewer.py", line 2765, in
    4428 set_threshold_parameters_from_gui 
    4429 if tuple(s.rgba) != tuple(color): 
    4430 File
    4431 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4432 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4433 return tuple(c/255 for c in self.color) 
    4434 File
    4435 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4436 packages/chimerax/map/volume.py", line 1995, in get_color 
    4437 return Surface.get_color(self) 
    4438 File
    4439 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4440 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4441 return self._colors[0] 
    4442 TypeError: 'NoneType' object is not subscriptable 
    4443  
    4444 TypeError: 'NoneType' object is not subscriptable 
    4445  
    4446 File
    4447 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4448 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4449 return self._colors[0] 
    4450  
    4451 See log for complete Python traceback. 
    4452  
    4453 Traceback (most recent call last): 
    4454 File
    4455 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4456 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4457 self._drag(event) 
    4458 File
    4459 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4460 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4461 cb(event) 
    4462 File
    4463 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4464 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4465 cb(m) 
    4466 File
    4467 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4468 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4469 self.select_data_cb() # Causes redisplay using GUI settings 
    4470 File
    4471 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4472 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4473 d.redisplay_needed_cb() 
    4474 File
    4475 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4476 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4477 self.redisplay_needed() 
    4478 File
    4479 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4480 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4481 self.show_using_dialog_settings(self.active_volume) 
    4482 File
    4483 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4484 packages/chimerax/map/volume_viewer.py", line 360, in
    4485 show_using_dialog_settings 
    4486 p.use_gui_settings(dr) 
    4487 File
    4488 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4489 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4490 hp.set_threshold_parameters_from_gui() 
    4491 File
    4492 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4493 packages/chimerax/map/volume_viewer.py", line 2765, in
    4494 set_threshold_parameters_from_gui 
    4495 if tuple(s.rgba) != tuple(color): 
    4496 File
    4497 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4498 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4499 return tuple(c/255 for c in self.color) 
    4500 File
    4501 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4502 packages/chimerax/map/volume.py", line 1995, in get_color 
    4503 return Surface.get_color(self) 
    4504 File
    4505 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4506 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4507 return self._colors[0] 
    4508 TypeError: 'NoneType' object is not subscriptable 
    4509  
    4510 TypeError: 'NoneType' object is not subscriptable 
    4511  
    4512 File
    4513 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4514 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4515 return self._colors[0] 
    4516  
    4517 See log for complete Python traceback. 
    4518  
    4519 Traceback (most recent call last): 
    4520 File
    4521 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4522 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4523 self._drag(event) 
    4524 File
    4525 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4526 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4527 cb(event) 
    4528 File
    4529 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4530 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4531 cb(m) 
    4532 File
    4533 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4534 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4535 self.select_data_cb() # Causes redisplay using GUI settings 
    4536 File
    4537 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4538 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4539 d.redisplay_needed_cb() 
    4540 File
    4541 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4542 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4543 self.redisplay_needed() 
    4544 File
    4545 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4546 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4547 self.show_using_dialog_settings(self.active_volume) 
    4548 File
    4549 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4550 packages/chimerax/map/volume_viewer.py", line 360, in
    4551 show_using_dialog_settings 
    4552 p.use_gui_settings(dr) 
    4553 File
    4554 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4555 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4556 hp.set_threshold_parameters_from_gui() 
    4557 File
    4558 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4559 packages/chimerax/map/volume_viewer.py", line 2765, in
    4560 set_threshold_parameters_from_gui 
    4561 if tuple(s.rgba) != tuple(color): 
    4562 File
    4563 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4564 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4565 return tuple(c/255 for c in self.color) 
    4566 File
    4567 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4568 packages/chimerax/map/volume.py", line 1995, in get_color 
    4569 return Surface.get_color(self) 
    4570 File
    4571 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4572 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4573 return self._colors[0] 
    4574 TypeError: 'NoneType' object is not subscriptable 
    4575  
    4576 TypeError: 'NoneType' object is not subscriptable 
    4577  
    4578 File
    4579 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4580 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4581 return self._colors[0] 
    4582  
    4583 See log for complete Python traceback. 
    4584  
    4585 Traceback (most recent call last): 
    4586 File
    4587 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4588 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4589 self._drag(event) 
    4590 File
    4591 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4592 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4593 cb(event) 
    4594 File
    4595 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4596 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4597 cb(m) 
    4598 File
    4599 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4600 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4601 self.select_data_cb() # Causes redisplay using GUI settings 
    4602 File
    4603 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4604 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4605 d.redisplay_needed_cb() 
    4606 File
    4607 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4608 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4609 self.redisplay_needed() 
    4610 File
    4611 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4612 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4613 self.show_using_dialog_settings(self.active_volume) 
    4614 File
    4615 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4616 packages/chimerax/map/volume_viewer.py", line 360, in
    4617 show_using_dialog_settings 
    4618 p.use_gui_settings(dr) 
    4619 File
    4620 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4621 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4622 hp.set_threshold_parameters_from_gui() 
    4623 File
    4624 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4625 packages/chimerax/map/volume_viewer.py", line 2765, in
    4626 set_threshold_parameters_from_gui 
    4627 if tuple(s.rgba) != tuple(color): 
    4628 File
    4629 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4630 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4631 return tuple(c/255 for c in self.color) 
    4632 File
    4633 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4634 packages/chimerax/map/volume.py", line 1995, in get_color 
    4635 return Surface.get_color(self) 
    4636 File
    4637 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4638 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4639 return self._colors[0] 
    4640 TypeError: 'NoneType' object is not subscriptable 
    4641  
    4642 TypeError: 'NoneType' object is not subscriptable 
    4643  
    4644 File
    4645 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4646 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4647 return self._colors[0] 
    4648  
    4649 See log for complete Python traceback. 
    4650  
    4651 Traceback (most recent call last): 
    4652 File
    4653 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4654 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4655 self._drag(event) 
    4656 File
    4657 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4658 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4659 cb(event) 
    4660 File
    4661 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4662 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4663 cb(m) 
    4664 File
    4665 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4666 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4667 self.select_data_cb() # Causes redisplay using GUI settings 
    4668 File
    4669 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4670 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4671 d.redisplay_needed_cb() 
    4672 File
    4673 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4674 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4675 self.redisplay_needed() 
    4676 File
    4677 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4678 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4679 self.show_using_dialog_settings(self.active_volume) 
    4680 File
    4681 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4682 packages/chimerax/map/volume_viewer.py", line 360, in
    4683 show_using_dialog_settings 
    4684 p.use_gui_settings(dr) 
    4685 File
    4686 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4687 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4688 hp.set_threshold_parameters_from_gui() 
    4689 File
    4690 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4691 packages/chimerax/map/volume_viewer.py", line 2765, in
    4692 set_threshold_parameters_from_gui 
    4693 if tuple(s.rgba) != tuple(color): 
    4694 File
    4695 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4696 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4697 return tuple(c/255 for c in self.color) 
    4698 File
    4699 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4700 packages/chimerax/map/volume.py", line 1995, in get_color 
    4701 return Surface.get_color(self) 
    4702 File
    4703 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4704 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4705 return self._colors[0] 
    4706 TypeError: 'NoneType' object is not subscriptable 
    4707  
    4708 TypeError: 'NoneType' object is not subscriptable 
    4709  
    4710 File
    4711 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4712 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4713 return self._colors[0] 
    4714  
    4715 See log for complete Python traceback. 
    4716  
    4717 Traceback (most recent call last): 
    4718 File
    4719 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4720 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4721 self._drag(event) 
    4722 File
    4723 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4724 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4725 cb(event) 
    4726 File
    4727 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4728 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4729 cb(m) 
    4730 File
    4731 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4732 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4733 self.select_data_cb() # Causes redisplay using GUI settings 
    4734 File
    4735 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4736 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4737 d.redisplay_needed_cb() 
    4738 File
    4739 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4740 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4741 self.redisplay_needed() 
    4742 File
    4743 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4744 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4745 self.show_using_dialog_settings(self.active_volume) 
    4746 File
    4747 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4748 packages/chimerax/map/volume_viewer.py", line 360, in
    4749 show_using_dialog_settings 
    4750 p.use_gui_settings(dr) 
    4751 File
    4752 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4753 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4754 hp.set_threshold_parameters_from_gui() 
    4755 File
    4756 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4757 packages/chimerax/map/volume_viewer.py", line 2765, in
    4758 set_threshold_parameters_from_gui 
    4759 if tuple(s.rgba) != tuple(color): 
    4760 File
    4761 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4762 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4763 return tuple(c/255 for c in self.color) 
    4764 File
    4765 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4766 packages/chimerax/map/volume.py", line 1995, in get_color 
    4767 return Surface.get_color(self) 
    4768 File
    4769 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4770 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4771 return self._colors[0] 
    4772 TypeError: 'NoneType' object is not subscriptable 
    4773  
    4774 TypeError: 'NoneType' object is not subscriptable 
    4775  
    4776 File
    4777 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4778 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4779 return self._colors[0] 
    4780  
    4781 See log for complete Python traceback. 
    4782  
    4783 Traceback (most recent call last): 
    4784 File
    4785 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4786 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4787 self._drag(event) 
    4788 File
    4789 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4790 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4791 cb(event) 
    4792 File
    4793 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4794 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4795 cb(m) 
    4796 File
    4797 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4798 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4799 self.select_data_cb() # Causes redisplay using GUI settings 
    4800 File
    4801 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4802 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4803 d.redisplay_needed_cb() 
    4804 File
    4805 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4806 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4807 self.redisplay_needed() 
    4808 File
    4809 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4810 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4811 self.show_using_dialog_settings(self.active_volume) 
    4812 File
    4813 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4814 packages/chimerax/map/volume_viewer.py", line 360, in
    4815 show_using_dialog_settings 
    4816 p.use_gui_settings(dr) 
    4817 File
    4818 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4819 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4820 hp.set_threshold_parameters_from_gui() 
    4821 File
    4822 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4823 packages/chimerax/map/volume_viewer.py", line 2765, in
    4824 set_threshold_parameters_from_gui 
    4825 if tuple(s.rgba) != tuple(color): 
    4826 File
    4827 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4828 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4829 return tuple(c/255 for c in self.color) 
    4830 File
    4831 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4832 packages/chimerax/map/volume.py", line 1995, in get_color 
    4833 return Surface.get_color(self) 
    4834 File
    4835 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4836 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4837 return self._colors[0] 
    4838 TypeError: 'NoneType' object is not subscriptable 
    4839  
    4840 TypeError: 'NoneType' object is not subscriptable 
    4841  
    4842 File
    4843 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4844 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4845 return self._colors[0] 
    4846  
    4847 See log for complete Python traceback. 
    4848  
    4849 Traceback (most recent call last): 
    4850 File
    4851 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4852 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    4853 self._drag(event) 
    4854 File
    4855 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4856 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4857 cb(event) 
    4858 File
    4859 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4860 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4861 cb(m) 
    4862 File
    4863 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4864 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4865 self.select_data_cb() # Causes redisplay using GUI settings 
    4866 File
    4867 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4868 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4869 d.redisplay_needed_cb() 
    4870 File
    4871 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4872 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4873 self.redisplay_needed() 
    4874 File
    4875 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4876 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4877 self.show_using_dialog_settings(self.active_volume) 
    4878 File
    4879 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4880 packages/chimerax/map/volume_viewer.py", line 360, in
    4881 show_using_dialog_settings 
    4882 p.use_gui_settings(dr) 
    4883 File
    4884 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4885 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4886 hp.set_threshold_parameters_from_gui() 
    4887 File
    4888 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4889 packages/chimerax/map/volume_viewer.py", line 2765, in
    4890 set_threshold_parameters_from_gui 
    4891 if tuple(s.rgba) != tuple(color): 
    4892 File
    4893 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4894 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4895 return tuple(c/255 for c in self.color) 
    4896 File
    4897 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4898 packages/chimerax/map/volume.py", line 1995, in get_color 
    4899 return Surface.get_color(self) 
    4900 File
    4901 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4902 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4903 return self._colors[0] 
    4904 TypeError: 'NoneType' object is not subscriptable 
    4905  
    4906 TypeError: 'NoneType' object is not subscriptable 
    4907  
    4908 File
    4909 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4910 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4911 return self._colors[0] 
    4912  
    4913 See log for complete Python traceback. 
    4914  
    4915 Traceback (most recent call last): 
    4916 File
    4917 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4918 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    4919 self._drag(event) 
    4920 File
    4921 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4922 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    4923 cb(event) 
    4924 File
    4925 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4926 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    4927 cb(m) 
    4928 File
    4929 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4930 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    4931 self.select_data_cb() # Causes redisplay using GUI settings 
    4932 File
    4933 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4934 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4935 d.redisplay_needed_cb() 
    4936 File
    4937 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4938 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    4939 self.redisplay_needed() 
    4940 File
    4941 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4942 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    4943 self.show_using_dialog_settings(self.active_volume) 
    4944 File
    4945 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4946 packages/chimerax/map/volume_viewer.py", line 360, in
    4947 show_using_dialog_settings 
    4948 p.use_gui_settings(dr) 
    4949 File
    4950 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4951 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    4952 hp.set_threshold_parameters_from_gui() 
    4953 File
    4954 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4955 packages/chimerax/map/volume_viewer.py", line 2765, in
    4956 set_threshold_parameters_from_gui 
    4957 if tuple(s.rgba) != tuple(color): 
    4958 File
    4959 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4960 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    4961 return tuple(c/255 for c in self.color) 
    4962 File
    4963 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4964 packages/chimerax/map/volume.py", line 1995, in get_color 
    4965 return Surface.get_color(self) 
    4966 File
    4967 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4968 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4969 return self._colors[0] 
    4970 TypeError: 'NoneType' object is not subscriptable 
    4971  
    4972 TypeError: 'NoneType' object is not subscriptable 
    4973  
    4974 File
    4975 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4976 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    4977 return self._colors[0] 
    4978  
    4979 See log for complete Python traceback. 
    4980  
    4981 Traceback (most recent call last): 
    4982 File
    4983 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4984 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    4985 cb(event) 
    4986 File
    4987 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4988 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    4989 cb(self.markers[i]) 
    4990 File
    4991 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4992 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    4993 self.select_data_cb() 
    4994 File
    4995 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    4996 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    4997 d.redisplay_needed_cb() 
    4998 File
    4999 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5000 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5001 self.redisplay_needed() 
    5002 File
    5003 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5004 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5005 self.show_using_dialog_settings(self.active_volume) 
    5006 File
    5007 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5008 packages/chimerax/map/volume_viewer.py", line 360, in
    5009 show_using_dialog_settings 
    5010 p.use_gui_settings(dr) 
    5011 File
    5012 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5013 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5014 hp.set_threshold_parameters_from_gui() 
    5015 File
    5016 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5017 packages/chimerax/map/volume_viewer.py", line 2765, in
    5018 set_threshold_parameters_from_gui 
    5019 if tuple(s.rgba) != tuple(color): 
    5020 File
    5021 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5022 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5023 return tuple(c/255 for c in self.color) 
    5024 File
    5025 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5026 packages/chimerax/map/volume.py", line 1995, in get_color 
    5027 return Surface.get_color(self) 
    5028 File
    5029 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5030 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5031 return self._colors[0] 
    5032 TypeError: 'NoneType' object is not subscriptable 
    5033  
    5034 TypeError: 'NoneType' object is not subscriptable 
    5035  
    5036 File
    5037 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5038 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5039 return self._colors[0] 
    5040  
    5041 See log for complete Python traceback. 
    5042  
    5043 Traceback (most recent call last): 
    5044 File
    5045 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5046 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5047 self._drag(event) 
    5048 File
    5049 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5050 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5051 cb(event) 
    5052 File
    5053 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5054 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5055 cb(m) 
    5056 File
    5057 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5058 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5059 self.select_data_cb() # Causes redisplay using GUI settings 
    5060 File
    5061 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5062 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5063 d.redisplay_needed_cb() 
    5064 File
    5065 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5066 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5067 self.redisplay_needed() 
    5068 File
    5069 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5070 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5071 self.show_using_dialog_settings(self.active_volume) 
    5072 File
    5073 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5074 packages/chimerax/map/volume_viewer.py", line 360, in
    5075 show_using_dialog_settings 
    5076 p.use_gui_settings(dr) 
    5077 File
    5078 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5079 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5080 hp.set_threshold_parameters_from_gui() 
    5081 File
    5082 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5083 packages/chimerax/map/volume_viewer.py", line 2765, in
    5084 set_threshold_parameters_from_gui 
    5085 if tuple(s.rgba) != tuple(color): 
    5086 File
    5087 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5088 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5089 return tuple(c/255 for c in self.color) 
    5090 File
    5091 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5092 packages/chimerax/map/volume.py", line 1995, in get_color 
    5093 return Surface.get_color(self) 
    5094 File
    5095 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5096 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5097 return self._colors[0] 
    5098 TypeError: 'NoneType' object is not subscriptable 
    5099  
    5100 TypeError: 'NoneType' object is not subscriptable 
    5101  
    5102 File
    5103 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5104 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5105 return self._colors[0] 
    5106  
    5107 See log for complete Python traceback. 
    5108  
    5109 Traceback (most recent call last): 
    5110 File
    5111 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5112 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5113 self._drag(event) 
    5114 File
    5115 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5116 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5117 cb(event) 
    5118 File
    5119 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5120 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5121 cb(m) 
    5122 File
    5123 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5124 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5125 self.select_data_cb() # Causes redisplay using GUI settings 
    5126 File
    5127 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5128 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5129 d.redisplay_needed_cb() 
    5130 File
    5131 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5132 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5133 self.redisplay_needed() 
    5134 File
    5135 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5136 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5137 self.show_using_dialog_settings(self.active_volume) 
    5138 File
    5139 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5140 packages/chimerax/map/volume_viewer.py", line 360, in
    5141 show_using_dialog_settings 
    5142 p.use_gui_settings(dr) 
    5143 File
    5144 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5145 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5146 hp.set_threshold_parameters_from_gui() 
    5147 File
    5148 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5149 packages/chimerax/map/volume_viewer.py", line 2765, in
    5150 set_threshold_parameters_from_gui 
    5151 if tuple(s.rgba) != tuple(color): 
    5152 File
    5153 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5154 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5155 return tuple(c/255 for c in self.color) 
    5156 File
    5157 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5158 packages/chimerax/map/volume.py", line 1995, in get_color 
    5159 return Surface.get_color(self) 
    5160 File
    5161 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5162 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5163 return self._colors[0] 
    5164 TypeError: 'NoneType' object is not subscriptable 
    5165  
    5166 TypeError: 'NoneType' object is not subscriptable 
    5167  
    5168 File
    5169 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5170 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5171 return self._colors[0] 
    5172  
    5173 See log for complete Python traceback. 
    5174  
    5175 Traceback (most recent call last): 
    5176 File
    5177 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5178 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5179 self._drag(event) 
    5180 File
    5181 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5182 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5183 cb(event) 
    5184 File
    5185 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5186 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5187 cb(m) 
    5188 File
    5189 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5190 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5191 self.select_data_cb() # Causes redisplay using GUI settings 
    5192 File
    5193 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5194 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5195 d.redisplay_needed_cb() 
    5196 File
    5197 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5198 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5199 self.redisplay_needed() 
    5200 File
    5201 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5202 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5203 self.show_using_dialog_settings(self.active_volume) 
    5204 File
    5205 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5206 packages/chimerax/map/volume_viewer.py", line 360, in
    5207 show_using_dialog_settings 
    5208 p.use_gui_settings(dr) 
    5209 File
    5210 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5211 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5212 hp.set_threshold_parameters_from_gui() 
    5213 File
    5214 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5215 packages/chimerax/map/volume_viewer.py", line 2765, in
    5216 set_threshold_parameters_from_gui 
    5217 if tuple(s.rgba) != tuple(color): 
    5218 File
    5219 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5220 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5221 return tuple(c/255 for c in self.color) 
    5222 File
    5223 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5224 packages/chimerax/map/volume.py", line 1995, in get_color 
    5225 return Surface.get_color(self) 
    5226 File
    5227 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5228 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5229 return self._colors[0] 
    5230 TypeError: 'NoneType' object is not subscriptable 
    5231  
    5232 TypeError: 'NoneType' object is not subscriptable 
    5233  
    5234 File
    5235 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5236 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5237 return self._colors[0] 
    5238  
    5239 See log for complete Python traceback. 
    5240  
    5241 Traceback (most recent call last): 
    5242 File
    5243 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5244 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5245 self._drag(event) 
    5246 File
    5247 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5248 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5249 cb(event) 
    5250 File
    5251 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5252 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5253 cb(m) 
    5254 File
    5255 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5256 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5257 self.select_data_cb() # Causes redisplay using GUI settings 
    5258 File
    5259 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5260 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5261 d.redisplay_needed_cb() 
    5262 File
    5263 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5264 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5265 self.redisplay_needed() 
    5266 File
    5267 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5268 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5269 self.show_using_dialog_settings(self.active_volume) 
    5270 File
    5271 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5272 packages/chimerax/map/volume_viewer.py", line 360, in
    5273 show_using_dialog_settings 
    5274 p.use_gui_settings(dr) 
    5275 File
    5276 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5277 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5278 hp.set_threshold_parameters_from_gui() 
    5279 File
    5280 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5281 packages/chimerax/map/volume_viewer.py", line 2765, in
    5282 set_threshold_parameters_from_gui 
    5283 if tuple(s.rgba) != tuple(color): 
    5284 File
    5285 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5286 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5287 return tuple(c/255 for c in self.color) 
    5288 File
    5289 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5290 packages/chimerax/map/volume.py", line 1995, in get_color 
    5291 return Surface.get_color(self) 
    5292 File
    5293 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5294 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5295 return self._colors[0] 
    5296 TypeError: 'NoneType' object is not subscriptable 
    5297  
    5298 TypeError: 'NoneType' object is not subscriptable 
    5299  
    5300 File
    5301 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5302 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5303 return self._colors[0] 
    5304  
    5305 See log for complete Python traceback. 
    5306  
    5307 Traceback (most recent call last): 
    5308 File
    5309 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5310 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5311 self._drag(event) 
    5312 File
    5313 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5314 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5315 cb(event) 
    5316 File
    5317 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5318 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5319 cb(m) 
    5320 File
    5321 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5322 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5323 self.select_data_cb() # Causes redisplay using GUI settings 
    5324 File
    5325 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5326 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5327 d.redisplay_needed_cb() 
    5328 File
    5329 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5330 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5331 self.redisplay_needed() 
    5332 File
    5333 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5334 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5335 self.show_using_dialog_settings(self.active_volume) 
    5336 File
    5337 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5338 packages/chimerax/map/volume_viewer.py", line 360, in
    5339 show_using_dialog_settings 
    5340 p.use_gui_settings(dr) 
    5341 File
    5342 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5343 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5344 hp.set_threshold_parameters_from_gui() 
    5345 File
    5346 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5347 packages/chimerax/map/volume_viewer.py", line 2765, in
    5348 set_threshold_parameters_from_gui 
    5349 if tuple(s.rgba) != tuple(color): 
    5350 File
    5351 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5352 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5353 return tuple(c/255 for c in self.color) 
    5354 File
    5355 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5356 packages/chimerax/map/volume.py", line 1995, in get_color 
    5357 return Surface.get_color(self) 
    5358 File
    5359 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5360 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5361 return self._colors[0] 
    5362 TypeError: 'NoneType' object is not subscriptable 
    5363  
    5364 TypeError: 'NoneType' object is not subscriptable 
    5365  
    5366 File
    5367 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5368 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5369 return self._colors[0] 
    5370  
    5371 See log for complete Python traceback. 
    5372  
    5373 Traceback (most recent call last): 
    5374 File
    5375 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5376 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5377 self._drag(event) 
    5378 File
    5379 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5380 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5381 cb(event) 
    5382 File
    5383 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5384 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5385 cb(m) 
    5386 File
    5387 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5388 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5389 self.select_data_cb() # Causes redisplay using GUI settings 
    5390 File
    5391 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5392 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5393 d.redisplay_needed_cb() 
    5394 File
    5395 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5396 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5397 self.redisplay_needed() 
    5398 File
    5399 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5400 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5401 self.show_using_dialog_settings(self.active_volume) 
    5402 File
    5403 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5404 packages/chimerax/map/volume_viewer.py", line 360, in
    5405 show_using_dialog_settings 
    5406 p.use_gui_settings(dr) 
    5407 File
    5408 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5409 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5410 hp.set_threshold_parameters_from_gui() 
    5411 File
    5412 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5413 packages/chimerax/map/volume_viewer.py", line 2765, in
    5414 set_threshold_parameters_from_gui 
    5415 if tuple(s.rgba) != tuple(color): 
    5416 File
    5417 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5418 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5419 return tuple(c/255 for c in self.color) 
    5420 File
    5421 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5422 packages/chimerax/map/volume.py", line 1995, in get_color 
    5423 return Surface.get_color(self) 
    5424 File
    5425 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5426 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5427 return self._colors[0] 
    5428 TypeError: 'NoneType' object is not subscriptable 
    5429  
    5430 TypeError: 'NoneType' object is not subscriptable 
    5431  
    5432 File
    5433 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5434 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5435 return self._colors[0] 
    5436  
    5437 See log for complete Python traceback. 
    5438  
    5439 Traceback (most recent call last): 
    5440 File
    5441 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5442 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5443 self._drag(event) 
    5444 File
    5445 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5446 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5447 cb(event) 
    5448 File
    5449 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5450 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5451 cb(m) 
    5452 File
    5453 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5454 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5455 self.select_data_cb() # Causes redisplay using GUI settings 
    5456 File
    5457 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5458 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5459 d.redisplay_needed_cb() 
    5460 File
    5461 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5462 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5463 self.redisplay_needed() 
    5464 File
    5465 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5466 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5467 self.show_using_dialog_settings(self.active_volume) 
    5468 File
    5469 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5470 packages/chimerax/map/volume_viewer.py", line 360, in
    5471 show_using_dialog_settings 
    5472 p.use_gui_settings(dr) 
    5473 File
    5474 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5475 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5476 hp.set_threshold_parameters_from_gui() 
    5477 File
    5478 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5479 packages/chimerax/map/volume_viewer.py", line 2765, in
    5480 set_threshold_parameters_from_gui 
    5481 if tuple(s.rgba) != tuple(color): 
    5482 File
    5483 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5484 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5485 return tuple(c/255 for c in self.color) 
    5486 File
    5487 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5488 packages/chimerax/map/volume.py", line 1995, in get_color 
    5489 return Surface.get_color(self) 
    5490 File
    5491 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5492 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5493 return self._colors[0] 
    5494 TypeError: 'NoneType' object is not subscriptable 
    5495  
    5496 TypeError: 'NoneType' object is not subscriptable 
    5497  
    5498 File
    5499 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5500 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5501 return self._colors[0] 
    5502  
    5503 See log for complete Python traceback. 
    5504  
    5505 Traceback (most recent call last): 
    5506 File
    5507 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5508 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5509 self._drag(event) 
    5510 File
    5511 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5512 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5513 cb(event) 
    5514 File
    5515 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5516 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5517 cb(m) 
    5518 File
    5519 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5520 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5521 self.select_data_cb() # Causes redisplay using GUI settings 
    5522 File
    5523 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5524 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5525 d.redisplay_needed_cb() 
    5526 File
    5527 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5528 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5529 self.redisplay_needed() 
    5530 File
    5531 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5532 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5533 self.show_using_dialog_settings(self.active_volume) 
    5534 File
    5535 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5536 packages/chimerax/map/volume_viewer.py", line 360, in
    5537 show_using_dialog_settings 
    5538 p.use_gui_settings(dr) 
    5539 File
    5540 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5541 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5542 hp.set_threshold_parameters_from_gui() 
    5543 File
    5544 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5545 packages/chimerax/map/volume_viewer.py", line 2765, in
    5546 set_threshold_parameters_from_gui 
    5547 if tuple(s.rgba) != tuple(color): 
    5548 File
    5549 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5550 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5551 return tuple(c/255 for c in self.color) 
    5552 File
    5553 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5554 packages/chimerax/map/volume.py", line 1995, in get_color 
    5555 return Surface.get_color(self) 
    5556 File
    5557 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5558 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5559 return self._colors[0] 
    5560 TypeError: 'NoneType' object is not subscriptable 
    5561  
    5562 TypeError: 'NoneType' object is not subscriptable 
    5563  
    5564 File
    5565 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5566 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5567 return self._colors[0] 
    5568  
    5569 See log for complete Python traceback. 
    5570  
    5571 Traceback (most recent call last): 
    5572 File
    5573 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5574 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5575 self._drag(event) 
    5576 File
    5577 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5578 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5579 cb(event) 
    5580 File
    5581 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5582 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5583 cb(m) 
    5584 File
    5585 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5586 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5587 self.select_data_cb() # Causes redisplay using GUI settings 
    5588 File
    5589 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5590 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5591 d.redisplay_needed_cb() 
    5592 File
    5593 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5594 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5595 self.redisplay_needed() 
    5596 File
    5597 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5598 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5599 self.show_using_dialog_settings(self.active_volume) 
    5600 File
    5601 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5602 packages/chimerax/map/volume_viewer.py", line 360, in
    5603 show_using_dialog_settings 
    5604 p.use_gui_settings(dr) 
    5605 File
    5606 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5607 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5608 hp.set_threshold_parameters_from_gui() 
    5609 File
    5610 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5611 packages/chimerax/map/volume_viewer.py", line 2765, in
    5612 set_threshold_parameters_from_gui 
    5613 if tuple(s.rgba) != tuple(color): 
    5614 File
    5615 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5616 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5617 return tuple(c/255 for c in self.color) 
    5618 File
    5619 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5620 packages/chimerax/map/volume.py", line 1995, in get_color 
    5621 return Surface.get_color(self) 
    5622 File
    5623 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5624 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5625 return self._colors[0] 
    5626 TypeError: 'NoneType' object is not subscriptable 
    5627  
    5628 TypeError: 'NoneType' object is not subscriptable 
    5629  
    5630 File
    5631 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5632 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5633 return self._colors[0] 
    5634  
    5635 See log for complete Python traceback. 
    5636  
    5637 Traceback (most recent call last): 
    5638 File
    5639 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5640 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5641 self._drag(event) 
    5642 File
    5643 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5644 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5645 cb(event) 
    5646 File
    5647 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5648 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5649 cb(m) 
    5650 File
    5651 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5652 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5653 self.select_data_cb() # Causes redisplay using GUI settings 
    5654 File
    5655 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5656 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5657 d.redisplay_needed_cb() 
    5658 File
    5659 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5660 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5661 self.redisplay_needed() 
    5662 File
    5663 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5664 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5665 self.show_using_dialog_settings(self.active_volume) 
    5666 File
    5667 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5668 packages/chimerax/map/volume_viewer.py", line 360, in
    5669 show_using_dialog_settings 
    5670 p.use_gui_settings(dr) 
    5671 File
    5672 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5673 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5674 hp.set_threshold_parameters_from_gui() 
    5675 File
    5676 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5677 packages/chimerax/map/volume_viewer.py", line 2765, in
    5678 set_threshold_parameters_from_gui 
    5679 if tuple(s.rgba) != tuple(color): 
    5680 File
    5681 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5682 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5683 return tuple(c/255 for c in self.color) 
    5684 File
    5685 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5686 packages/chimerax/map/volume.py", line 1995, in get_color 
    5687 return Surface.get_color(self) 
    5688 File
    5689 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5690 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5691 return self._colors[0] 
    5692 TypeError: 'NoneType' object is not subscriptable 
    5693  
    5694 TypeError: 'NoneType' object is not subscriptable 
    5695  
    5696 File
    5697 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5698 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5699 return self._colors[0] 
    5700  
    5701 See log for complete Python traceback. 
    5702  
    5703 Traceback (most recent call last): 
    5704 File
    5705 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5706 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5707 self._drag(event) 
    5708 File
    5709 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5710 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5711 cb(event) 
    5712 File
    5713 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5714 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5715 cb(m) 
    5716 File
    5717 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5718 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5719 self.select_data_cb() # Causes redisplay using GUI settings 
    5720 File
    5721 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5722 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5723 d.redisplay_needed_cb() 
    5724 File
    5725 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5726 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5727 self.redisplay_needed() 
    5728 File
    5729 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5730 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5731 self.show_using_dialog_settings(self.active_volume) 
    5732 File
    5733 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5734 packages/chimerax/map/volume_viewer.py", line 360, in
    5735 show_using_dialog_settings 
    5736 p.use_gui_settings(dr) 
    5737 File
    5738 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5739 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5740 hp.set_threshold_parameters_from_gui() 
    5741 File
    5742 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5743 packages/chimerax/map/volume_viewer.py", line 2765, in
    5744 set_threshold_parameters_from_gui 
    5745 if tuple(s.rgba) != tuple(color): 
    5746 File
    5747 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5748 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5749 return tuple(c/255 for c in self.color) 
    5750 File
    5751 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5752 packages/chimerax/map/volume.py", line 1995, in get_color 
    5753 return Surface.get_color(self) 
    5754 File
    5755 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5756 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5757 return self._colors[0] 
    5758 TypeError: 'NoneType' object is not subscriptable 
    5759  
    5760 TypeError: 'NoneType' object is not subscriptable 
    5761  
    5762 File
    5763 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5764 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5765 return self._colors[0] 
    5766  
    5767 See log for complete Python traceback. 
    5768  
    5769 Traceback (most recent call last): 
    5770 File
    5771 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5772 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5773 self._drag(event) 
    5774 File
    5775 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5776 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5777 cb(event) 
    5778 File
    5779 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5780 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5781 cb(m) 
    5782 File
    5783 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5784 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5785 self.select_data_cb() # Causes redisplay using GUI settings 
    5786 File
    5787 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5788 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5789 d.redisplay_needed_cb() 
    5790 File
    5791 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5792 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5793 self.redisplay_needed() 
    5794 File
    5795 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5796 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5797 self.show_using_dialog_settings(self.active_volume) 
    5798 File
    5799 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5800 packages/chimerax/map/volume_viewer.py", line 360, in
    5801 show_using_dialog_settings 
    5802 p.use_gui_settings(dr) 
    5803 File
    5804 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5805 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5806 hp.set_threshold_parameters_from_gui() 
    5807 File
    5808 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5809 packages/chimerax/map/volume_viewer.py", line 2765, in
    5810 set_threshold_parameters_from_gui 
    5811 if tuple(s.rgba) != tuple(color): 
    5812 File
    5813 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5814 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5815 return tuple(c/255 for c in self.color) 
    5816 File
    5817 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5818 packages/chimerax/map/volume.py", line 1995, in get_color 
    5819 return Surface.get_color(self) 
    5820 File
    5821 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5822 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5823 return self._colors[0] 
    5824 TypeError: 'NoneType' object is not subscriptable 
    5825  
    5826 TypeError: 'NoneType' object is not subscriptable 
    5827  
    5828 File
    5829 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5830 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5831 return self._colors[0] 
    5832  
    5833 See log for complete Python traceback. 
    5834  
    5835 Traceback (most recent call last): 
    5836 File
    5837 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5838 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5839 self._drag(event) 
    5840 File
    5841 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5842 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5843 cb(event) 
    5844 File
    5845 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5846 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5847 cb(m) 
    5848 File
    5849 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5850 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5851 self.select_data_cb() # Causes redisplay using GUI settings 
    5852 File
    5853 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5854 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5855 d.redisplay_needed_cb() 
    5856 File
    5857 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5858 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5859 self.redisplay_needed() 
    5860 File
    5861 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5862 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5863 self.show_using_dialog_settings(self.active_volume) 
    5864 File
    5865 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5866 packages/chimerax/map/volume_viewer.py", line 360, in
    5867 show_using_dialog_settings 
    5868 p.use_gui_settings(dr) 
    5869 File
    5870 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5871 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5872 hp.set_threshold_parameters_from_gui() 
    5873 File
    5874 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5875 packages/chimerax/map/volume_viewer.py", line 2765, in
    5876 set_threshold_parameters_from_gui 
    5877 if tuple(s.rgba) != tuple(color): 
    5878 File
    5879 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5880 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5881 return tuple(c/255 for c in self.color) 
    5882 File
    5883 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5884 packages/chimerax/map/volume.py", line 1995, in get_color 
    5885 return Surface.get_color(self) 
    5886 File
    5887 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5888 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5889 return self._colors[0] 
    5890 TypeError: 'NoneType' object is not subscriptable 
    5891  
    5892 TypeError: 'NoneType' object is not subscriptable 
    5893  
    5894 File
    5895 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5896 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5897 return self._colors[0] 
    5898  
    5899 See log for complete Python traceback. 
    5900  
    5901 Traceback (most recent call last): 
    5902 File
    5903 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5904 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5905 self._drag(event) 
    5906 File
    5907 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5908 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5909 cb(event) 
    5910 File
    5911 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5912 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5913 cb(m) 
    5914 File
    5915 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5916 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5917 self.select_data_cb() # Causes redisplay using GUI settings 
    5918 File
    5919 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5920 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5921 d.redisplay_needed_cb() 
    5922 File
    5923 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5924 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5925 self.redisplay_needed() 
    5926 File
    5927 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5928 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5929 self.show_using_dialog_settings(self.active_volume) 
    5930 File
    5931 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5932 packages/chimerax/map/volume_viewer.py", line 360, in
    5933 show_using_dialog_settings 
    5934 p.use_gui_settings(dr) 
    5935 File
    5936 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5937 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    5938 hp.set_threshold_parameters_from_gui() 
    5939 File
    5940 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5941 packages/chimerax/map/volume_viewer.py", line 2765, in
    5942 set_threshold_parameters_from_gui 
    5943 if tuple(s.rgba) != tuple(color): 
    5944 File
    5945 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5946 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    5947 return tuple(c/255 for c in self.color) 
    5948 File
    5949 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5950 packages/chimerax/map/volume.py", line 1995, in get_color 
    5951 return Surface.get_color(self) 
    5952 File
    5953 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5954 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5955 return self._colors[0] 
    5956 TypeError: 'NoneType' object is not subscriptable 
    5957  
    5958 TypeError: 'NoneType' object is not subscriptable 
    5959  
    5960 File
    5961 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5962 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    5963 return self._colors[0] 
    5964  
    5965 See log for complete Python traceback. 
    5966  
    5967 Traceback (most recent call last): 
    5968 File
    5969 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5970 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    5971 self._drag(event) 
    5972 File
    5973 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5974 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    5975 cb(event) 
    5976 File
    5977 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5978 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    5979 cb(m) 
    5980 File
    5981 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5982 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    5983 self.select_data_cb() # Causes redisplay using GUI settings 
    5984 File
    5985 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5986 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    5987 d.redisplay_needed_cb() 
    5988 File
    5989 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5990 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    5991 self.redisplay_needed() 
    5992 File
    5993 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5994 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    5995 self.show_using_dialog_settings(self.active_volume) 
    5996 File
    5997 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    5998 packages/chimerax/map/volume_viewer.py", line 360, in
    5999 show_using_dialog_settings 
    6000 p.use_gui_settings(dr) 
    6001 File
    6002 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6003 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6004 hp.set_threshold_parameters_from_gui() 
    6005 File
    6006 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6007 packages/chimerax/map/volume_viewer.py", line 2765, in
    6008 set_threshold_parameters_from_gui 
    6009 if tuple(s.rgba) != tuple(color): 
    6010 File
    6011 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6012 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6013 return tuple(c/255 for c in self.color) 
    6014 File
    6015 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6016 packages/chimerax/map/volume.py", line 1995, in get_color 
    6017 return Surface.get_color(self) 
    6018 File
    6019 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6020 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6021 return self._colors[0] 
    6022 TypeError: 'NoneType' object is not subscriptable 
    6023  
    6024 TypeError: 'NoneType' object is not subscriptable 
    6025  
    6026 File
    6027 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6028 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6029 return self._colors[0] 
    6030  
    6031 See log for complete Python traceback. 
    6032  
    6033 Traceback (most recent call last): 
    6034 File
    6035 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6036 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    6037 self._drag(event) 
    6038 File
    6039 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6040 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6041 cb(event) 
    6042 File
    6043 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6044 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6045 cb(m) 
    6046 File
    6047 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6048 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6049 self.select_data_cb() # Causes redisplay using GUI settings 
    6050 File
    6051 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6052 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6053 d.redisplay_needed_cb() 
    6054 File
    6055 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6056 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6057 self.redisplay_needed() 
    6058 File
    6059 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6060 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6061 self.show_using_dialog_settings(self.active_volume) 
    6062 File
    6063 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6064 packages/chimerax/map/volume_viewer.py", line 360, in
    6065 show_using_dialog_settings 
    6066 p.use_gui_settings(dr) 
    6067 File
    6068 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6069 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6070 hp.set_threshold_parameters_from_gui() 
    6071 File
    6072 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6073 packages/chimerax/map/volume_viewer.py", line 2765, in
    6074 set_threshold_parameters_from_gui 
    6075 if tuple(s.rgba) != tuple(color): 
    6076 File
    6077 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6078 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6079 return tuple(c/255 for c in self.color) 
    6080 File
    6081 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6082 packages/chimerax/map/volume.py", line 1995, in get_color 
    6083 return Surface.get_color(self) 
    6084 File
    6085 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6086 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6087 return self._colors[0] 
    6088 TypeError: 'NoneType' object is not subscriptable 
    6089  
    6090 TypeError: 'NoneType' object is not subscriptable 
    6091  
    6092 File
    6093 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6094 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6095 return self._colors[0] 
    6096  
    6097 See log for complete Python traceback. 
    6098  
    6099 Traceback (most recent call last): 
    6100 File
    6101 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6102 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    6103 cb(event) 
    6104 File
    6105 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6106 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    6107 cb(self.markers[i]) 
    6108 File
    6109 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6110 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    6111 self.select_data_cb() 
    6112 File
    6113 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6114 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6115 d.redisplay_needed_cb() 
    6116 File
    6117 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6118 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6119 self.redisplay_needed() 
    6120 File
    6121 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6122 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6123 self.show_using_dialog_settings(self.active_volume) 
    6124 File
    6125 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6126 packages/chimerax/map/volume_viewer.py", line 360, in
    6127 show_using_dialog_settings 
    6128 p.use_gui_settings(dr) 
    6129 File
    6130 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6131 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6132 hp.set_threshold_parameters_from_gui() 
    6133 File
    6134 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6135 packages/chimerax/map/volume_viewer.py", line 2765, in
    6136 set_threshold_parameters_from_gui 
    6137 if tuple(s.rgba) != tuple(color): 
    6138 File
    6139 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6140 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6141 return tuple(c/255 for c in self.color) 
    6142 File
    6143 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6144 packages/chimerax/map/volume.py", line 1995, in get_color 
    6145 return Surface.get_color(self) 
    6146 File
    6147 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6148 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6149 return self._colors[0] 
    6150 TypeError: 'NoneType' object is not subscriptable 
    6151  
    6152 TypeError: 'NoneType' object is not subscriptable 
    6153  
    6154 File
    6155 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6156 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6157 return self._colors[0] 
    6158  
    6159 See log for complete Python traceback. 
    6160  
    6161 Traceback (most recent call last): 
    6162 File
    6163 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6164 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6165 self._drag(event) 
    6166 File
    6167 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6168 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6169 cb(event) 
    6170 File
    6171 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6172 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6173 cb(m) 
    6174 File
    6175 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6176 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6177 self.select_data_cb() # Causes redisplay using GUI settings 
    6178 File
    6179 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6180 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6181 d.redisplay_needed_cb() 
    6182 File
    6183 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6184 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6185 self.redisplay_needed() 
    6186 File
    6187 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6188 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6189 self.show_using_dialog_settings(self.active_volume) 
    6190 File
    6191 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6192 packages/chimerax/map/volume_viewer.py", line 360, in
    6193 show_using_dialog_settings 
    6194 p.use_gui_settings(dr) 
    6195 File
    6196 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6197 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6198 hp.set_threshold_parameters_from_gui() 
    6199 File
    6200 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6201 packages/chimerax/map/volume_viewer.py", line 2765, in
    6202 set_threshold_parameters_from_gui 
    6203 if tuple(s.rgba) != tuple(color): 
    6204 File
    6205 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6206 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6207 return tuple(c/255 for c in self.color) 
    6208 File
    6209 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6210 packages/chimerax/map/volume.py", line 1995, in get_color 
    6211 return Surface.get_color(self) 
    6212 File
    6213 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6214 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6215 return self._colors[0] 
    6216 TypeError: 'NoneType' object is not subscriptable 
    6217  
    6218 TypeError: 'NoneType' object is not subscriptable 
    6219  
    6220 File
    6221 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6222 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6223 return self._colors[0] 
    6224  
    6225 See log for complete Python traceback. 
    6226  
    6227 Traceback (most recent call last): 
    6228 File
    6229 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6230 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6231 self._drag(event) 
    6232 File
    6233 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6234 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6235 cb(event) 
    6236 File
    6237 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6238 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6239 cb(m) 
    6240 File
    6241 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6242 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6243 self.select_data_cb() # Causes redisplay using GUI settings 
    6244 File
    6245 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6246 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6247 d.redisplay_needed_cb() 
    6248 File
    6249 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6250 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6251 self.redisplay_needed() 
    6252 File
    6253 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6254 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6255 self.show_using_dialog_settings(self.active_volume) 
    6256 File
    6257 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6258 packages/chimerax/map/volume_viewer.py", line 360, in
    6259 show_using_dialog_settings 
    6260 p.use_gui_settings(dr) 
    6261 File
    6262 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6263 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6264 hp.set_threshold_parameters_from_gui() 
    6265 File
    6266 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6267 packages/chimerax/map/volume_viewer.py", line 2765, in
    6268 set_threshold_parameters_from_gui 
    6269 if tuple(s.rgba) != tuple(color): 
    6270 File
    6271 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6272 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6273 return tuple(c/255 for c in self.color) 
    6274 File
    6275 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6276 packages/chimerax/map/volume.py", line 1995, in get_color 
    6277 return Surface.get_color(self) 
    6278 File
    6279 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6280 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6281 return self._colors[0] 
    6282 TypeError: 'NoneType' object is not subscriptable 
    6283  
    6284 TypeError: 'NoneType' object is not subscriptable 
    6285  
    6286 File
    6287 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6288 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6289 return self._colors[0] 
    6290  
    6291 See log for complete Python traceback. 
    6292  
    6293 Traceback (most recent call last): 
    6294 File
    6295 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6296 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6297 self._drag(event) 
    6298 File
    6299 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6300 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6301 cb(event) 
    6302 File
    6303 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6304 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6305 cb(m) 
    6306 File
    6307 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6308 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6309 self.select_data_cb() # Causes redisplay using GUI settings 
    6310 File
    6311 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6312 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6313 d.redisplay_needed_cb() 
    6314 File
    6315 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6316 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6317 self.redisplay_needed() 
    6318 File
    6319 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6320 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6321 self.show_using_dialog_settings(self.active_volume) 
    6322 File
    6323 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6324 packages/chimerax/map/volume_viewer.py", line 360, in
    6325 show_using_dialog_settings 
    6326 p.use_gui_settings(dr) 
    6327 File
    6328 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6329 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6330 hp.set_threshold_parameters_from_gui() 
    6331 File
    6332 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6333 packages/chimerax/map/volume_viewer.py", line 2765, in
    6334 set_threshold_parameters_from_gui 
    6335 if tuple(s.rgba) != tuple(color): 
    6336 File
    6337 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6338 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6339 return tuple(c/255 for c in self.color) 
    6340 File
    6341 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6342 packages/chimerax/map/volume.py", line 1995, in get_color 
    6343 return Surface.get_color(self) 
    6344 File
    6345 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6346 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6347 return self._colors[0] 
    6348 TypeError: 'NoneType' object is not subscriptable 
    6349  
    6350 TypeError: 'NoneType' object is not subscriptable 
    6351  
    6352 File
    6353 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6354 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6355 return self._colors[0] 
    6356  
    6357 See log for complete Python traceback. 
    6358  
    6359 Traceback (most recent call last): 
    6360 File
    6361 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6362 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6363 self._drag(event) 
    6364 File
    6365 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6366 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6367 cb(event) 
    6368 File
    6369 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6370 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6371 cb(m) 
    6372 File
    6373 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6374 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6375 self.select_data_cb() # Causes redisplay using GUI settings 
    6376 File
    6377 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6378 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6379 d.redisplay_needed_cb() 
    6380 File
    6381 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6382 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6383 self.redisplay_needed() 
    6384 File
    6385 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6386 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6387 self.show_using_dialog_settings(self.active_volume) 
    6388 File
    6389 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6390 packages/chimerax/map/volume_viewer.py", line 360, in
    6391 show_using_dialog_settings 
    6392 p.use_gui_settings(dr) 
    6393 File
    6394 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6395 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6396 hp.set_threshold_parameters_from_gui() 
    6397 File
    6398 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6399 packages/chimerax/map/volume_viewer.py", line 2765, in
    6400 set_threshold_parameters_from_gui 
    6401 if tuple(s.rgba) != tuple(color): 
    6402 File
    6403 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6404 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6405 return tuple(c/255 for c in self.color) 
    6406 File
    6407 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6408 packages/chimerax/map/volume.py", line 1995, in get_color 
    6409 return Surface.get_color(self) 
    6410 File
    6411 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6412 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6413 return self._colors[0] 
    6414 TypeError: 'NoneType' object is not subscriptable 
    6415  
    6416 TypeError: 'NoneType' object is not subscriptable 
    6417  
    6418 File
    6419 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6420 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6421 return self._colors[0] 
    6422  
    6423 See log for complete Python traceback. 
    6424  
    6425 Traceback (most recent call last): 
    6426 File
    6427 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6428 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6429 self._drag(event) 
    6430 File
    6431 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6432 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6433 cb(event) 
    6434 File
    6435 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6436 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6437 cb(m) 
    6438 File
    6439 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6440 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6441 self.select_data_cb() # Causes redisplay using GUI settings 
    6442 File
    6443 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6444 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6445 d.redisplay_needed_cb() 
    6446 File
    6447 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6448 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6449 self.redisplay_needed() 
    6450 File
    6451 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6452 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6453 self.show_using_dialog_settings(self.active_volume) 
    6454 File
    6455 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6456 packages/chimerax/map/volume_viewer.py", line 360, in
    6457 show_using_dialog_settings 
    6458 p.use_gui_settings(dr) 
    6459 File
    6460 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6461 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6462 hp.set_threshold_parameters_from_gui() 
    6463 File
    6464 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6465 packages/chimerax/map/volume_viewer.py", line 2765, in
    6466 set_threshold_parameters_from_gui 
    6467 if tuple(s.rgba) != tuple(color): 
    6468 File
    6469 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6470 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6471 return tuple(c/255 for c in self.color) 
    6472 File
    6473 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6474 packages/chimerax/map/volume.py", line 1995, in get_color 
    6475 return Surface.get_color(self) 
    6476 File
    6477 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6478 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6479 return self._colors[0] 
    6480 TypeError: 'NoneType' object is not subscriptable 
    6481  
    6482 TypeError: 'NoneType' object is not subscriptable 
    6483  
    6484 File
    6485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6486 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6487 return self._colors[0] 
    6488  
    6489 See log for complete Python traceback. 
    6490  
    6491 Traceback (most recent call last): 
    6492 File
    6493 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6494 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6495 self._drag(event) 
    6496 File
    6497 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6498 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6499 cb(event) 
    6500 File
    6501 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6502 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6503 cb(m) 
    6504 File
    6505 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6506 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6507 self.select_data_cb() # Causes redisplay using GUI settings 
    6508 File
    6509 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6510 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6511 d.redisplay_needed_cb() 
    6512 File
    6513 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6514 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6515 self.redisplay_needed() 
    6516 File
    6517 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6518 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6519 self.show_using_dialog_settings(self.active_volume) 
    6520 File
    6521 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6522 packages/chimerax/map/volume_viewer.py", line 360, in
    6523 show_using_dialog_settings 
    6524 p.use_gui_settings(dr) 
    6525 File
    6526 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6527 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6528 hp.set_threshold_parameters_from_gui() 
    6529 File
    6530 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6531 packages/chimerax/map/volume_viewer.py", line 2765, in
    6532 set_threshold_parameters_from_gui 
    6533 if tuple(s.rgba) != tuple(color): 
    6534 File
    6535 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6536 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6537 return tuple(c/255 for c in self.color) 
    6538 File
    6539 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6540 packages/chimerax/map/volume.py", line 1995, in get_color 
    6541 return Surface.get_color(self) 
    6542 File
    6543 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6544 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6545 return self._colors[0] 
    6546 TypeError: 'NoneType' object is not subscriptable 
    6547  
    6548 TypeError: 'NoneType' object is not subscriptable 
    6549  
    6550 File
    6551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6552 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6553 return self._colors[0] 
    6554  
    6555 See log for complete Python traceback. 
    6556  
    6557 Traceback (most recent call last): 
    6558 File
    6559 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6560 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6561 self._drag(event) 
    6562 File
    6563 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6564 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6565 cb(event) 
    6566 File
    6567 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6568 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6569 cb(m) 
    6570 File
    6571 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6572 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6573 self.select_data_cb() # Causes redisplay using GUI settings 
    6574 File
    6575 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6576 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6577 d.redisplay_needed_cb() 
    6578 File
    6579 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6580 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6581 self.redisplay_needed() 
    6582 File
    6583 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6584 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6585 self.show_using_dialog_settings(self.active_volume) 
    6586 File
    6587 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6588 packages/chimerax/map/volume_viewer.py", line 360, in
    6589 show_using_dialog_settings 
    6590 p.use_gui_settings(dr) 
    6591 File
    6592 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6593 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6594 hp.set_threshold_parameters_from_gui() 
    6595 File
    6596 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6597 packages/chimerax/map/volume_viewer.py", line 2765, in
    6598 set_threshold_parameters_from_gui 
    6599 if tuple(s.rgba) != tuple(color): 
    6600 File
    6601 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6602 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6603 return tuple(c/255 for c in self.color) 
    6604 File
    6605 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6606 packages/chimerax/map/volume.py", line 1995, in get_color 
    6607 return Surface.get_color(self) 
    6608 File
    6609 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6610 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6611 return self._colors[0] 
    6612 TypeError: 'NoneType' object is not subscriptable 
    6613  
    6614 TypeError: 'NoneType' object is not subscriptable 
    6615  
    6616 File
    6617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6618 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6619 return self._colors[0] 
    6620  
    6621 See log for complete Python traceback. 
    6622  
    6623 Traceback (most recent call last): 
    6624 File
    6625 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6626 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6627 self._drag(event) 
    6628 File
    6629 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6630 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6631 cb(event) 
    6632 File
    6633 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6634 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6635 cb(m) 
    6636 File
    6637 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6638 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6639 self.select_data_cb() # Causes redisplay using GUI settings 
    6640 File
    6641 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6642 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6643 d.redisplay_needed_cb() 
    6644 File
    6645 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6646 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6647 self.redisplay_needed() 
    6648 File
    6649 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6650 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6651 self.show_using_dialog_settings(self.active_volume) 
    6652 File
    6653 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6654 packages/chimerax/map/volume_viewer.py", line 360, in
    6655 show_using_dialog_settings 
    6656 p.use_gui_settings(dr) 
    6657 File
    6658 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6659 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6660 hp.set_threshold_parameters_from_gui() 
    6661 File
    6662 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6663 packages/chimerax/map/volume_viewer.py", line 2765, in
    6664 set_threshold_parameters_from_gui 
    6665 if tuple(s.rgba) != tuple(color): 
    6666 File
    6667 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6668 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6669 return tuple(c/255 for c in self.color) 
    6670 File
    6671 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6672 packages/chimerax/map/volume.py", line 1995, in get_color 
    6673 return Surface.get_color(self) 
    6674 File
    6675 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6676 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6677 return self._colors[0] 
    6678 TypeError: 'NoneType' object is not subscriptable 
    6679  
    6680 TypeError: 'NoneType' object is not subscriptable 
    6681  
    6682 File
    6683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6684 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6685 return self._colors[0] 
    6686  
    6687 See log for complete Python traceback. 
    6688  
    6689 Traceback (most recent call last): 
    6690 File
    6691 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6692 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6693 self._drag(event) 
    6694 File
    6695 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6696 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6697 cb(event) 
    6698 File
    6699 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6700 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6701 cb(m) 
    6702 File
    6703 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6704 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6705 self.select_data_cb() # Causes redisplay using GUI settings 
    6706 File
    6707 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6708 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6709 d.redisplay_needed_cb() 
    6710 File
    6711 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6712 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6713 self.redisplay_needed() 
    6714 File
    6715 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6716 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6717 self.show_using_dialog_settings(self.active_volume) 
    6718 File
    6719 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6720 packages/chimerax/map/volume_viewer.py", line 360, in
    6721 show_using_dialog_settings 
    6722 p.use_gui_settings(dr) 
    6723 File
    6724 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6725 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6726 hp.set_threshold_parameters_from_gui() 
    6727 File
    6728 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6729 packages/chimerax/map/volume_viewer.py", line 2765, in
    6730 set_threshold_parameters_from_gui 
    6731 if tuple(s.rgba) != tuple(color): 
    6732 File
    6733 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6734 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6735 return tuple(c/255 for c in self.color) 
    6736 File
    6737 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6738 packages/chimerax/map/volume.py", line 1995, in get_color 
    6739 return Surface.get_color(self) 
    6740 File
    6741 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6742 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6743 return self._colors[0] 
    6744 TypeError: 'NoneType' object is not subscriptable 
    6745  
    6746 TypeError: 'NoneType' object is not subscriptable 
    6747  
    6748 File
    6749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6750 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6751 return self._colors[0] 
    6752  
    6753 See log for complete Python traceback. 
    6754  
    6755 Traceback (most recent call last): 
    6756 File
    6757 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6758 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6759 self._drag(event) 
    6760 File
    6761 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6762 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6763 cb(event) 
    6764 File
    6765 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6766 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6767 cb(m) 
    6768 File
    6769 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6770 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6771 self.select_data_cb() # Causes redisplay using GUI settings 
    6772 File
    6773 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6774 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6775 d.redisplay_needed_cb() 
    6776 File
    6777 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6778 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6779 self.redisplay_needed() 
    6780 File
    6781 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6782 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6783 self.show_using_dialog_settings(self.active_volume) 
    6784 File
    6785 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6786 packages/chimerax/map/volume_viewer.py", line 360, in
    6787 show_using_dialog_settings 
    6788 p.use_gui_settings(dr) 
    6789 File
    6790 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6791 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6792 hp.set_threshold_parameters_from_gui() 
    6793 File
    6794 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6795 packages/chimerax/map/volume_viewer.py", line 2765, in
    6796 set_threshold_parameters_from_gui 
    6797 if tuple(s.rgba) != tuple(color): 
    6798 File
    6799 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6800 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6801 return tuple(c/255 for c in self.color) 
    6802 File
    6803 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6804 packages/chimerax/map/volume.py", line 1995, in get_color 
    6805 return Surface.get_color(self) 
    6806 File
    6807 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6808 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6809 return self._colors[0] 
    6810 TypeError: 'NoneType' object is not subscriptable 
    6811  
    6812 TypeError: 'NoneType' object is not subscriptable 
    6813  
    6814 File
    6815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6816 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6817 return self._colors[0] 
    6818  
    6819 See log for complete Python traceback. 
    6820  
    6821 Traceback (most recent call last): 
    6822 File
    6823 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6824 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6825 self._drag(event) 
    6826 File
    6827 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6828 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6829 cb(event) 
    6830 File
    6831 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6832 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6833 cb(m) 
    6834 File
    6835 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6836 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6837 self.select_data_cb() # Causes redisplay using GUI settings 
    6838 File
    6839 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6840 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6841 d.redisplay_needed_cb() 
    6842 File
    6843 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6844 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6845 self.redisplay_needed() 
    6846 File
    6847 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6848 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6849 self.show_using_dialog_settings(self.active_volume) 
    6850 File
    6851 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6852 packages/chimerax/map/volume_viewer.py", line 360, in
    6853 show_using_dialog_settings 
    6854 p.use_gui_settings(dr) 
    6855 File
    6856 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6857 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6858 hp.set_threshold_parameters_from_gui() 
    6859 File
    6860 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6861 packages/chimerax/map/volume_viewer.py", line 2765, in
    6862 set_threshold_parameters_from_gui 
    6863 if tuple(s.rgba) != tuple(color): 
    6864 File
    6865 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6866 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6867 return tuple(c/255 for c in self.color) 
    6868 File
    6869 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6870 packages/chimerax/map/volume.py", line 1995, in get_color 
    6871 return Surface.get_color(self) 
    6872 File
    6873 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6874 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6875 return self._colors[0] 
    6876 TypeError: 'NoneType' object is not subscriptable 
    6877  
    6878 TypeError: 'NoneType' object is not subscriptable 
    6879  
    6880 File
    6881 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6882 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6883 return self._colors[0] 
    6884  
    6885 See log for complete Python traceback. 
    6886  
    6887 Traceback (most recent call last): 
    6888 File
    6889 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6890 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6891 self._drag(event) 
    6892 File
    6893 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6894 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6895 cb(event) 
    6896 File
    6897 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6898 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6899 cb(m) 
    6900 File
    6901 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6902 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6903 self.select_data_cb() # Causes redisplay using GUI settings 
    6904 File
    6905 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6906 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6907 d.redisplay_needed_cb() 
    6908 File
    6909 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6910 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6911 self.redisplay_needed() 
    6912 File
    6913 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6914 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6915 self.show_using_dialog_settings(self.active_volume) 
    6916 File
    6917 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6918 packages/chimerax/map/volume_viewer.py", line 360, in
    6919 show_using_dialog_settings 
    6920 p.use_gui_settings(dr) 
    6921 File
    6922 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6923 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6924 hp.set_threshold_parameters_from_gui() 
    6925 File
    6926 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6927 packages/chimerax/map/volume_viewer.py", line 2765, in
    6928 set_threshold_parameters_from_gui 
    6929 if tuple(s.rgba) != tuple(color): 
    6930 File
    6931 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6932 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6933 return tuple(c/255 for c in self.color) 
    6934 File
    6935 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6936 packages/chimerax/map/volume.py", line 1995, in get_color 
    6937 return Surface.get_color(self) 
    6938 File
    6939 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6940 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6941 return self._colors[0] 
    6942 TypeError: 'NoneType' object is not subscriptable 
    6943  
    6944 TypeError: 'NoneType' object is not subscriptable 
    6945  
    6946 File
    6947 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6948 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    6949 return self._colors[0] 
    6950  
    6951 See log for complete Python traceback. 
    6952  
    6953 Traceback (most recent call last): 
    6954 File
    6955 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6956 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    6957 self._drag(event) 
    6958 File
    6959 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6960 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    6961 cb(event) 
    6962 File
    6963 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6964 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    6965 cb(m) 
    6966 File
    6967 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6968 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    6969 self.select_data_cb() # Causes redisplay using GUI settings 
    6970 File
    6971 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6972 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    6973 d.redisplay_needed_cb() 
    6974 File
    6975 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6976 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    6977 self.redisplay_needed() 
    6978 File
    6979 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6980 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    6981 self.show_using_dialog_settings(self.active_volume) 
    6982 File
    6983 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6984 packages/chimerax/map/volume_viewer.py", line 360, in
    6985 show_using_dialog_settings 
    6986 p.use_gui_settings(dr) 
    6987 File
    6988 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6989 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    6990 hp.set_threshold_parameters_from_gui() 
    6991 File
    6992 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6993 packages/chimerax/map/volume_viewer.py", line 2765, in
    6994 set_threshold_parameters_from_gui 
    6995 if tuple(s.rgba) != tuple(color): 
    6996 File
    6997 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    6998 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    6999 return tuple(c/255 for c in self.color) 
    7000 File
    7001 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7002 packages/chimerax/map/volume.py", line 1995, in get_color 
    7003 return Surface.get_color(self) 
    7004 File
    7005 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7006 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7007 return self._colors[0] 
    7008 TypeError: 'NoneType' object is not subscriptable 
    7009  
    7010 TypeError: 'NoneType' object is not subscriptable 
    7011  
    7012 File
    7013 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7014 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7015 return self._colors[0] 
    7016  
    7017 See log for complete Python traceback. 
    7018  
    7019 Traceback (most recent call last): 
    7020 File
    7021 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7022 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7023 self._drag(event) 
    7024 File
    7025 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7026 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7027 cb(event) 
    7028 File
    7029 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7030 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7031 cb(m) 
    7032 File
    7033 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7034 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7035 self.select_data_cb() # Causes redisplay using GUI settings 
    7036 File
    7037 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7038 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7039 d.redisplay_needed_cb() 
    7040 File
    7041 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7042 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7043 self.redisplay_needed() 
    7044 File
    7045 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7046 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7047 self.show_using_dialog_settings(self.active_volume) 
    7048 File
    7049 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7050 packages/chimerax/map/volume_viewer.py", line 360, in
    7051 show_using_dialog_settings 
    7052 p.use_gui_settings(dr) 
    7053 File
    7054 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7055 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7056 hp.set_threshold_parameters_from_gui() 
    7057 File
    7058 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7059 packages/chimerax/map/volume_viewer.py", line 2765, in
    7060 set_threshold_parameters_from_gui 
    7061 if tuple(s.rgba) != tuple(color): 
    7062 File
    7063 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7064 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7065 return tuple(c/255 for c in self.color) 
    7066 File
    7067 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7068 packages/chimerax/map/volume.py", line 1995, in get_color 
    7069 return Surface.get_color(self) 
    7070 File
    7071 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7072 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7073 return self._colors[0] 
    7074 TypeError: 'NoneType' object is not subscriptable 
    7075  
    7076 TypeError: 'NoneType' object is not subscriptable 
    7077  
    7078 File
    7079 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7080 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7081 return self._colors[0] 
    7082  
    7083 See log for complete Python traceback. 
    7084  
    7085 Traceback (most recent call last): 
    7086 File
    7087 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7088 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    7089 self._drag(event) 
    7090 File
    7091 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7092 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7093 cb(event) 
    7094 File
    7095 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7096 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7097 cb(m) 
    7098 File
    7099 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7100 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7101 self.select_data_cb() # Causes redisplay using GUI settings 
    7102 File
    7103 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7104 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7105 d.redisplay_needed_cb() 
    7106 File
    7107 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7108 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7109 self.redisplay_needed() 
    7110 File
    7111 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7112 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7113 self.show_using_dialog_settings(self.active_volume) 
    7114 File
    7115 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7116 packages/chimerax/map/volume_viewer.py", line 360, in
    7117 show_using_dialog_settings 
    7118 p.use_gui_settings(dr) 
    7119 File
    7120 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7121 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7122 hp.set_threshold_parameters_from_gui() 
    7123 File
    7124 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7125 packages/chimerax/map/volume_viewer.py", line 2765, in
    7126 set_threshold_parameters_from_gui 
    7127 if tuple(s.rgba) != tuple(color): 
    7128 File
    7129 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7130 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7131 return tuple(c/255 for c in self.color) 
    7132 File
    7133 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7134 packages/chimerax/map/volume.py", line 1995, in get_color 
    7135 return Surface.get_color(self) 
    7136 File
    7137 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7138 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7139 return self._colors[0] 
    7140 TypeError: 'NoneType' object is not subscriptable 
    7141  
    7142 TypeError: 'NoneType' object is not subscriptable 
    7143  
    7144 File
    7145 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7146 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7147 return self._colors[0] 
    7148  
    7149 See log for complete Python traceback. 
    7150  
    7151 Traceback (most recent call last): 
    7152 File
    7153 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7154 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    7155 cb(event) 
    7156 File
    7157 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7158 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    7159 cb(self.markers[i]) 
    7160 File
    7161 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7162 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    7163 self.select_data_cb() 
    7164 File
    7165 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7166 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7167 d.redisplay_needed_cb() 
    7168 File
    7169 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7170 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7171 self.redisplay_needed() 
    7172 File
    7173 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7174 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7175 self.show_using_dialog_settings(self.active_volume) 
    7176 File
    7177 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7178 packages/chimerax/map/volume_viewer.py", line 360, in
    7179 show_using_dialog_settings 
    7180 p.use_gui_settings(dr) 
    7181 File
    7182 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7183 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7184 hp.set_threshold_parameters_from_gui() 
    7185 File
    7186 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7187 packages/chimerax/map/volume_viewer.py", line 2765, in
    7188 set_threshold_parameters_from_gui 
    7189 if tuple(s.rgba) != tuple(color): 
    7190 File
    7191 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7192 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7193 return tuple(c/255 for c in self.color) 
    7194 File
    7195 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7196 packages/chimerax/map/volume.py", line 1995, in get_color 
    7197 return Surface.get_color(self) 
    7198 File
    7199 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7200 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7201 return self._colors[0] 
    7202 TypeError: 'NoneType' object is not subscriptable 
    7203  
    7204 TypeError: 'NoneType' object is not subscriptable 
    7205  
    7206 File
    7207 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7208 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7209 return self._colors[0] 
    7210  
    7211 See log for complete Python traceback. 
    7212  
    7213 Traceback (most recent call last): 
    7214 File
    7215 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7216 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7217 self._drag(event) 
    7218 File
    7219 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7220 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7221 cb(event) 
    7222 File
    7223 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7224 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7225 cb(m) 
    7226 File
    7227 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7228 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7229 self.select_data_cb() # Causes redisplay using GUI settings 
    7230 File
    7231 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7232 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7233 d.redisplay_needed_cb() 
    7234 File
    7235 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7236 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7237 self.redisplay_needed() 
    7238 File
    7239 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7240 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7241 self.show_using_dialog_settings(self.active_volume) 
    7242 File
    7243 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7244 packages/chimerax/map/volume_viewer.py", line 360, in
    7245 show_using_dialog_settings 
    7246 p.use_gui_settings(dr) 
    7247 File
    7248 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7249 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7250 hp.set_threshold_parameters_from_gui() 
    7251 File
    7252 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7253 packages/chimerax/map/volume_viewer.py", line 2765, in
    7254 set_threshold_parameters_from_gui 
    7255 if tuple(s.rgba) != tuple(color): 
    7256 File
    7257 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7258 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7259 return tuple(c/255 for c in self.color) 
    7260 File
    7261 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7262 packages/chimerax/map/volume.py", line 1995, in get_color 
    7263 return Surface.get_color(self) 
    7264 File
    7265 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7266 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7267 return self._colors[0] 
    7268 TypeError: 'NoneType' object is not subscriptable 
    7269  
    7270 TypeError: 'NoneType' object is not subscriptable 
    7271  
    7272 File
    7273 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7274 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7275 return self._colors[0] 
    7276  
    7277 See log for complete Python traceback. 
    7278  
    7279 Traceback (most recent call last): 
    7280 File
    7281 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7282 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7283 self._drag(event) 
    7284 File
    7285 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7286 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7287 cb(event) 
    7288 File
    7289 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7290 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7291 cb(m) 
    7292 File
    7293 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7294 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7295 self.select_data_cb() # Causes redisplay using GUI settings 
    7296 File
    7297 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7298 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7299 d.redisplay_needed_cb() 
    7300 File
    7301 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7302 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7303 self.redisplay_needed() 
    7304 File
    7305 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7306 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7307 self.show_using_dialog_settings(self.active_volume) 
    7308 File
    7309 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7310 packages/chimerax/map/volume_viewer.py", line 360, in
    7311 show_using_dialog_settings 
    7312 p.use_gui_settings(dr) 
    7313 File
    7314 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7315 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7316 hp.set_threshold_parameters_from_gui() 
    7317 File
    7318 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7319 packages/chimerax/map/volume_viewer.py", line 2765, in
    7320 set_threshold_parameters_from_gui 
    7321 if tuple(s.rgba) != tuple(color): 
    7322 File
    7323 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7324 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7325 return tuple(c/255 for c in self.color) 
    7326 File
    7327 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7328 packages/chimerax/map/volume.py", line 1995, in get_color 
    7329 return Surface.get_color(self) 
    7330 File
    7331 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7332 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7333 return self._colors[0] 
    7334 TypeError: 'NoneType' object is not subscriptable 
    7335  
    7336 TypeError: 'NoneType' object is not subscriptable 
    7337  
    7338 File
    7339 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7340 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7341 return self._colors[0] 
    7342  
    7343 See log for complete Python traceback. 
    7344  
    7345 Traceback (most recent call last): 
    7346 File
    7347 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7348 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7349 self._drag(event) 
    7350 File
    7351 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7352 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7353 cb(event) 
    7354 File
    7355 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7356 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7357 cb(m) 
    7358 File
    7359 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7360 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7361 self.select_data_cb() # Causes redisplay using GUI settings 
    7362 File
    7363 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7364 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7365 d.redisplay_needed_cb() 
    7366 File
    7367 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7368 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7369 self.redisplay_needed() 
    7370 File
    7371 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7372 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7373 self.show_using_dialog_settings(self.active_volume) 
    7374 File
    7375 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7376 packages/chimerax/map/volume_viewer.py", line 360, in
    7377 show_using_dialog_settings 
    7378 p.use_gui_settings(dr) 
    7379 File
    7380 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7381 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7382 hp.set_threshold_parameters_from_gui() 
    7383 File
    7384 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7385 packages/chimerax/map/volume_viewer.py", line 2765, in
    7386 set_threshold_parameters_from_gui 
    7387 if tuple(s.rgba) != tuple(color): 
    7388 File
    7389 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7390 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7391 return tuple(c/255 for c in self.color) 
    7392 File
    7393 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7394 packages/chimerax/map/volume.py", line 1995, in get_color 
    7395 return Surface.get_color(self) 
    7396 File
    7397 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7398 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7399 return self._colors[0] 
    7400 TypeError: 'NoneType' object is not subscriptable 
    7401  
    7402 TypeError: 'NoneType' object is not subscriptable 
    7403  
    7404 File
    7405 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7406 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7407 return self._colors[0] 
    7408  
    7409 See log for complete Python traceback. 
    7410  
    7411 Traceback (most recent call last): 
    7412 File
    7413 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7414 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7415 self._drag(event) 
    7416 File
    7417 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7418 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7419 cb(event) 
    7420 File
    7421 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7422 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7423 cb(m) 
    7424 File
    7425 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7426 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7427 self.select_data_cb() # Causes redisplay using GUI settings 
    7428 File
    7429 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7430 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7431 d.redisplay_needed_cb() 
    7432 File
    7433 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7434 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7435 self.redisplay_needed() 
    7436 File
    7437 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7438 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7439 self.show_using_dialog_settings(self.active_volume) 
    7440 File
    7441 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7442 packages/chimerax/map/volume_viewer.py", line 360, in
    7443 show_using_dialog_settings 
    7444 p.use_gui_settings(dr) 
    7445 File
    7446 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7447 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7448 hp.set_threshold_parameters_from_gui() 
    7449 File
    7450 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7451 packages/chimerax/map/volume_viewer.py", line 2765, in
    7452 set_threshold_parameters_from_gui 
    7453 if tuple(s.rgba) != tuple(color): 
    7454 File
    7455 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7456 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7457 return tuple(c/255 for c in self.color) 
    7458 File
    7459 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7460 packages/chimerax/map/volume.py", line 1995, in get_color 
    7461 return Surface.get_color(self) 
    7462 File
    7463 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7464 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7465 return self._colors[0] 
    7466 TypeError: 'NoneType' object is not subscriptable 
    7467  
    7468 TypeError: 'NoneType' object is not subscriptable 
    7469  
    7470 File
    7471 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7472 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7473 return self._colors[0] 
    7474  
    7475 See log for complete Python traceback. 
    7476  
    7477 Traceback (most recent call last): 
    7478 File
    7479 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7480 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7481 self._drag(event) 
    7482 File
    7483 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7484 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7485 cb(event) 
    7486 File
    7487 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7488 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7489 cb(m) 
    7490 File
    7491 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7492 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7493 self.select_data_cb() # Causes redisplay using GUI settings 
    7494 File
    7495 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7496 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7497 d.redisplay_needed_cb() 
    7498 File
    7499 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7500 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7501 self.redisplay_needed() 
    7502 File
    7503 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7504 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7505 self.show_using_dialog_settings(self.active_volume) 
    7506 File
    7507 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7508 packages/chimerax/map/volume_viewer.py", line 360, in
    7509 show_using_dialog_settings 
    7510 p.use_gui_settings(dr) 
    7511 File
    7512 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7513 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7514 hp.set_threshold_parameters_from_gui() 
    7515 File
    7516 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7517 packages/chimerax/map/volume_viewer.py", line 2765, in
    7518 set_threshold_parameters_from_gui 
    7519 if tuple(s.rgba) != tuple(color): 
    7520 File
    7521 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7522 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7523 return tuple(c/255 for c in self.color) 
    7524 File
    7525 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7526 packages/chimerax/map/volume.py", line 1995, in get_color 
    7527 return Surface.get_color(self) 
    7528 File
    7529 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7530 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7531 return self._colors[0] 
    7532 TypeError: 'NoneType' object is not subscriptable 
    7533  
    7534 TypeError: 'NoneType' object is not subscriptable 
    7535  
    7536 File
    7537 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7538 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7539 return self._colors[0] 
    7540  
    7541 See log for complete Python traceback. 
    7542  
    7543 Traceback (most recent call last): 
    7544 File
    7545 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7546 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7547 self._drag(event) 
    7548 File
    7549 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7550 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7551 cb(event) 
    7552 File
    7553 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7554 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7555 cb(m) 
    7556 File
    7557 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7558 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7559 self.select_data_cb() # Causes redisplay using GUI settings 
    7560 File
    7561 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7562 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7563 d.redisplay_needed_cb() 
    7564 File
    7565 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7566 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7567 self.redisplay_needed() 
    7568 File
    7569 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7570 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7571 self.show_using_dialog_settings(self.active_volume) 
    7572 File
    7573 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7574 packages/chimerax/map/volume_viewer.py", line 360, in
    7575 show_using_dialog_settings 
    7576 p.use_gui_settings(dr) 
    7577 File
    7578 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7579 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7580 hp.set_threshold_parameters_from_gui() 
    7581 File
    7582 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7583 packages/chimerax/map/volume_viewer.py", line 2765, in
    7584 set_threshold_parameters_from_gui 
    7585 if tuple(s.rgba) != tuple(color): 
    7586 File
    7587 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7588 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7589 return tuple(c/255 for c in self.color) 
    7590 File
    7591 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7592 packages/chimerax/map/volume.py", line 1995, in get_color 
    7593 return Surface.get_color(self) 
    7594 File
    7595 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7596 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7597 return self._colors[0] 
    7598 TypeError: 'NoneType' object is not subscriptable 
    7599  
    7600 TypeError: 'NoneType' object is not subscriptable 
    7601  
    7602 File
    7603 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7604 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7605 return self._colors[0] 
    7606  
    7607 See log for complete Python traceback. 
    7608  
    7609 Traceback (most recent call last): 
    7610 File
    7611 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7612 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7613 self._drag(event) 
    7614 File
    7615 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7616 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7617 cb(event) 
    7618 File
    7619 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7620 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7621 cb(m) 
    7622 File
    7623 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7624 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7625 self.select_data_cb() # Causes redisplay using GUI settings 
    7626 File
    7627 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7628 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7629 d.redisplay_needed_cb() 
    7630 File
    7631 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7632 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7633 self.redisplay_needed() 
    7634 File
    7635 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7636 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7637 self.show_using_dialog_settings(self.active_volume) 
    7638 File
    7639 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7640 packages/chimerax/map/volume_viewer.py", line 360, in
    7641 show_using_dialog_settings 
    7642 p.use_gui_settings(dr) 
    7643 File
    7644 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7645 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7646 hp.set_threshold_parameters_from_gui() 
    7647 File
    7648 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7649 packages/chimerax/map/volume_viewer.py", line 2765, in
    7650 set_threshold_parameters_from_gui 
    7651 if tuple(s.rgba) != tuple(color): 
    7652 File
    7653 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7654 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7655 return tuple(c/255 for c in self.color) 
    7656 File
    7657 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7658 packages/chimerax/map/volume.py", line 1995, in get_color 
    7659 return Surface.get_color(self) 
    7660 File
    7661 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7662 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7663 return self._colors[0] 
    7664 TypeError: 'NoneType' object is not subscriptable 
    7665  
    7666 TypeError: 'NoneType' object is not subscriptable 
    7667  
    7668 File
    7669 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7670 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7671 return self._colors[0] 
    7672  
    7673 See log for complete Python traceback. 
    7674  
    7675 Traceback (most recent call last): 
    7676 File
    7677 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7678 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7679 self._drag(event) 
    7680 File
    7681 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7682 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7683 cb(event) 
    7684 File
    7685 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7686 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7687 cb(m) 
    7688 File
    7689 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7690 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7691 self.select_data_cb() # Causes redisplay using GUI settings 
    7692 File
    7693 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7694 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7695 d.redisplay_needed_cb() 
    7696 File
    7697 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7698 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7699 self.redisplay_needed() 
    7700 File
    7701 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7702 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7703 self.show_using_dialog_settings(self.active_volume) 
    7704 File
    7705 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7706 packages/chimerax/map/volume_viewer.py", line 360, in
    7707 show_using_dialog_settings 
    7708 p.use_gui_settings(dr) 
    7709 File
    7710 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7711 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7712 hp.set_threshold_parameters_from_gui() 
    7713 File
    7714 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7715 packages/chimerax/map/volume_viewer.py", line 2765, in
    7716 set_threshold_parameters_from_gui 
    7717 if tuple(s.rgba) != tuple(color): 
    7718 File
    7719 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7720 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7721 return tuple(c/255 for c in self.color) 
    7722 File
    7723 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7724 packages/chimerax/map/volume.py", line 1995, in get_color 
    7725 return Surface.get_color(self) 
    7726 File
    7727 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7728 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7729 return self._colors[0] 
    7730 TypeError: 'NoneType' object is not subscriptable 
    7731  
    7732 TypeError: 'NoneType' object is not subscriptable 
    7733  
    7734 File
    7735 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7736 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7737 return self._colors[0] 
    7738  
    7739 See log for complete Python traceback. 
    7740  
    7741 Traceback (most recent call last): 
    7742 File
    7743 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7744 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7745 self._drag(event) 
    7746 File
    7747 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7748 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7749 cb(event) 
    7750 File
    7751 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7752 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7753 cb(m) 
    7754 File
    7755 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7756 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7757 self.select_data_cb() # Causes redisplay using GUI settings 
    7758 File
    7759 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7760 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7761 d.redisplay_needed_cb() 
    7762 File
    7763 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7764 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7765 self.redisplay_needed() 
    7766 File
    7767 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7768 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7769 self.show_using_dialog_settings(self.active_volume) 
    7770 File
    7771 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7772 packages/chimerax/map/volume_viewer.py", line 360, in
    7773 show_using_dialog_settings 
    7774 p.use_gui_settings(dr) 
    7775 File
    7776 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7777 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7778 hp.set_threshold_parameters_from_gui() 
    7779 File
    7780 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7781 packages/chimerax/map/volume_viewer.py", line 2765, in
    7782 set_threshold_parameters_from_gui 
    7783 if tuple(s.rgba) != tuple(color): 
    7784 File
    7785 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7786 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7787 return tuple(c/255 for c in self.color) 
    7788 File
    7789 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7790 packages/chimerax/map/volume.py", line 1995, in get_color 
    7791 return Surface.get_color(self) 
    7792 File
    7793 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7794 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7795 return self._colors[0] 
    7796 TypeError: 'NoneType' object is not subscriptable 
    7797  
    7798 TypeError: 'NoneType' object is not subscriptable 
    7799  
    7800 File
    7801 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7802 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7803 return self._colors[0] 
    7804  
    7805 See log for complete Python traceback. 
    7806  
    7807 Traceback (most recent call last): 
    7808 File
    7809 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7810 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7811 self._drag(event) 
    7812 File
    7813 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7814 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7815 cb(event) 
    7816 File
    7817 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7818 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7819 cb(m) 
    7820 File
    7821 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7822 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7823 self.select_data_cb() # Causes redisplay using GUI settings 
    7824 File
    7825 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7826 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7827 d.redisplay_needed_cb() 
    7828 File
    7829 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7830 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7831 self.redisplay_needed() 
    7832 File
    7833 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7834 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7835 self.show_using_dialog_settings(self.active_volume) 
    7836 File
    7837 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7838 packages/chimerax/map/volume_viewer.py", line 360, in
    7839 show_using_dialog_settings 
    7840 p.use_gui_settings(dr) 
    7841 File
    7842 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7843 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7844 hp.set_threshold_parameters_from_gui() 
    7845 File
    7846 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7847 packages/chimerax/map/volume_viewer.py", line 2765, in
    7848 set_threshold_parameters_from_gui 
    7849 if tuple(s.rgba) != tuple(color): 
    7850 File
    7851 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7852 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7853 return tuple(c/255 for c in self.color) 
    7854 File
    7855 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7856 packages/chimerax/map/volume.py", line 1995, in get_color 
    7857 return Surface.get_color(self) 
    7858 File
    7859 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7860 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7861 return self._colors[0] 
    7862 TypeError: 'NoneType' object is not subscriptable 
    7863  
    7864 TypeError: 'NoneType' object is not subscriptable 
    7865  
    7866 File
    7867 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7868 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7869 return self._colors[0] 
    7870  
    7871 See log for complete Python traceback. 
    7872  
    7873 Traceback (most recent call last): 
    7874 File
    7875 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7876 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7877 self._drag(event) 
    7878 File
    7879 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7880 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7881 cb(event) 
    7882 File
    7883 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7884 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7885 cb(m) 
    7886 File
    7887 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7888 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7889 self.select_data_cb() # Causes redisplay using GUI settings 
    7890 File
    7891 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7892 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7893 d.redisplay_needed_cb() 
    7894 File
    7895 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7896 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7897 self.redisplay_needed() 
    7898 File
    7899 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7900 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7901 self.show_using_dialog_settings(self.active_volume) 
    7902 File
    7903 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7904 packages/chimerax/map/volume_viewer.py", line 360, in
    7905 show_using_dialog_settings 
    7906 p.use_gui_settings(dr) 
    7907 File
    7908 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7909 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7910 hp.set_threshold_parameters_from_gui() 
    7911 File
    7912 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7913 packages/chimerax/map/volume_viewer.py", line 2765, in
    7914 set_threshold_parameters_from_gui 
    7915 if tuple(s.rgba) != tuple(color): 
    7916 File
    7917 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7918 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7919 return tuple(c/255 for c in self.color) 
    7920 File
    7921 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7922 packages/chimerax/map/volume.py", line 1995, in get_color 
    7923 return Surface.get_color(self) 
    7924 File
    7925 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7926 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7927 return self._colors[0] 
    7928 TypeError: 'NoneType' object is not subscriptable 
    7929  
    7930 TypeError: 'NoneType' object is not subscriptable 
    7931  
    7932 File
    7933 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7934 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7935 return self._colors[0] 
    7936  
    7937 See log for complete Python traceback. 
    7938  
    7939 Traceback (most recent call last): 
    7940 File
    7941 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7942 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    7943 self._drag(event) 
    7944 File
    7945 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7946 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    7947 cb(event) 
    7948 File
    7949 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7950 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    7951 cb(m) 
    7952 File
    7953 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7954 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    7955 self.select_data_cb() # Causes redisplay using GUI settings 
    7956 File
    7957 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7958 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    7959 d.redisplay_needed_cb() 
    7960 File
    7961 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7962 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    7963 self.redisplay_needed() 
    7964 File
    7965 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7966 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    7967 self.show_using_dialog_settings(self.active_volume) 
    7968 File
    7969 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7970 packages/chimerax/map/volume_viewer.py", line 360, in
    7971 show_using_dialog_settings 
    7972 p.use_gui_settings(dr) 
    7973 File
    7974 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7975 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    7976 hp.set_threshold_parameters_from_gui() 
    7977 File
    7978 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7979 packages/chimerax/map/volume_viewer.py", line 2765, in
    7980 set_threshold_parameters_from_gui 
    7981 if tuple(s.rgba) != tuple(color): 
    7982 File
    7983 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7984 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    7985 return tuple(c/255 for c in self.color) 
    7986 File
    7987 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7988 packages/chimerax/map/volume.py", line 1995, in get_color 
    7989 return Surface.get_color(self) 
    7990 File
    7991 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    7992 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    7993 return self._colors[0] 
    7994 TypeError: 'NoneType' object is not subscriptable 
    7995  
    7996 TypeError: 'NoneType' object is not subscriptable 
    7997  
    7998 File
    7999 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8000 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8001 return self._colors[0] 
    8002  
    8003 See log for complete Python traceback. 
    8004  
    8005 Traceback (most recent call last): 
    8006 File
    8007 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8008 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8009 self._drag(event) 
    8010 File
    8011 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8012 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8013 cb(event) 
    8014 File
    8015 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8016 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8017 cb(m) 
    8018 File
    8019 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8020 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8021 self.select_data_cb() # Causes redisplay using GUI settings 
    8022 File
    8023 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8024 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8025 d.redisplay_needed_cb() 
    8026 File
    8027 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8028 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8029 self.redisplay_needed() 
    8030 File
    8031 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8032 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8033 self.show_using_dialog_settings(self.active_volume) 
    8034 File
    8035 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8036 packages/chimerax/map/volume_viewer.py", line 360, in
    8037 show_using_dialog_settings 
    8038 p.use_gui_settings(dr) 
    8039 File
    8040 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8041 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8042 hp.set_threshold_parameters_from_gui() 
    8043 File
    8044 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8045 packages/chimerax/map/volume_viewer.py", line 2765, in
    8046 set_threshold_parameters_from_gui 
    8047 if tuple(s.rgba) != tuple(color): 
    8048 File
    8049 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8050 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8051 return tuple(c/255 for c in self.color) 
    8052 File
    8053 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8054 packages/chimerax/map/volume.py", line 1995, in get_color 
    8055 return Surface.get_color(self) 
    8056 File
    8057 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8058 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8059 return self._colors[0] 
    8060 TypeError: 'NoneType' object is not subscriptable 
    8061  
    8062 TypeError: 'NoneType' object is not subscriptable 
    8063  
    8064 File
    8065 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8066 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8067 return self._colors[0] 
    8068  
    8069 See log for complete Python traceback. 
    8070  
    8071 Traceback (most recent call last): 
    8072 File
    8073 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8074 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8075 self._drag(event) 
    8076 File
    8077 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8078 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8079 cb(event) 
    8080 File
    8081 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8082 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8083 cb(m) 
    8084 File
    8085 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8086 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8087 self.select_data_cb() # Causes redisplay using GUI settings 
    8088 File
    8089 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8090 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8091 d.redisplay_needed_cb() 
    8092 File
    8093 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8094 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8095 self.redisplay_needed() 
    8096 File
    8097 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8098 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8099 self.show_using_dialog_settings(self.active_volume) 
    8100 File
    8101 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8102 packages/chimerax/map/volume_viewer.py", line 360, in
    8103 show_using_dialog_settings 
    8104 p.use_gui_settings(dr) 
    8105 File
    8106 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8107 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8108 hp.set_threshold_parameters_from_gui() 
    8109 File
    8110 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8111 packages/chimerax/map/volume_viewer.py", line 2765, in
    8112 set_threshold_parameters_from_gui 
    8113 if tuple(s.rgba) != tuple(color): 
    8114 File
    8115 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8116 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8117 return tuple(c/255 for c in self.color) 
    8118 File
    8119 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8120 packages/chimerax/map/volume.py", line 1995, in get_color 
    8121 return Surface.get_color(self) 
    8122 File
    8123 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8124 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8125 return self._colors[0] 
    8126 TypeError: 'NoneType' object is not subscriptable 
    8127  
    8128 TypeError: 'NoneType' object is not subscriptable 
    8129  
    8130 File
    8131 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8132 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8133 return self._colors[0] 
    8134  
    8135 See log for complete Python traceback. 
    8136  
    8137 Traceback (most recent call last): 
    8138 File
    8139 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8140 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8141 self._drag(event) 
    8142 File
    8143 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8144 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8145 cb(event) 
    8146 File
    8147 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8148 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8149 cb(m) 
    8150 File
    8151 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8152 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8153 self.select_data_cb() # Causes redisplay using GUI settings 
    8154 File
    8155 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8156 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8157 d.redisplay_needed_cb() 
    8158 File
    8159 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8160 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8161 self.redisplay_needed() 
    8162 File
    8163 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8164 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8165 self.show_using_dialog_settings(self.active_volume) 
    8166 File
    8167 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8168 packages/chimerax/map/volume_viewer.py", line 360, in
    8169 show_using_dialog_settings 
    8170 p.use_gui_settings(dr) 
    8171 File
    8172 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8173 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8174 hp.set_threshold_parameters_from_gui() 
    8175 File
    8176 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8177 packages/chimerax/map/volume_viewer.py", line 2765, in
    8178 set_threshold_parameters_from_gui 
    8179 if tuple(s.rgba) != tuple(color): 
    8180 File
    8181 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8182 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8183 return tuple(c/255 for c in self.color) 
    8184 File
    8185 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8186 packages/chimerax/map/volume.py", line 1995, in get_color 
    8187 return Surface.get_color(self) 
    8188 File
    8189 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8190 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8191 return self._colors[0] 
    8192 TypeError: 'NoneType' object is not subscriptable 
    8193  
    8194 TypeError: 'NoneType' object is not subscriptable 
    8195  
    8196 File
    8197 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8198 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8199 return self._colors[0] 
    8200  
    8201 See log for complete Python traceback. 
    8202  
    8203 Traceback (most recent call last): 
    8204 File
    8205 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8206 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8207 self._drag(event) 
    8208 File
    8209 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8210 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8211 cb(event) 
    8212 File
    8213 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8214 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8215 cb(m) 
    8216 File
    8217 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8218 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8219 self.select_data_cb() # Causes redisplay using GUI settings 
    8220 File
    8221 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8222 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8223 d.redisplay_needed_cb() 
    8224 File
    8225 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8226 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8227 self.redisplay_needed() 
    8228 File
    8229 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8230 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8231 self.show_using_dialog_settings(self.active_volume) 
    8232 File
    8233 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8234 packages/chimerax/map/volume_viewer.py", line 360, in
    8235 show_using_dialog_settings 
    8236 p.use_gui_settings(dr) 
    8237 File
    8238 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8239 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8240 hp.set_threshold_parameters_from_gui() 
    8241 File
    8242 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8243 packages/chimerax/map/volume_viewer.py", line 2765, in
    8244 set_threshold_parameters_from_gui 
    8245 if tuple(s.rgba) != tuple(color): 
    8246 File
    8247 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8248 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8249 return tuple(c/255 for c in self.color) 
    8250 File
    8251 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8252 packages/chimerax/map/volume.py", line 1995, in get_color 
    8253 return Surface.get_color(self) 
    8254 File
    8255 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8256 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8257 return self._colors[0] 
    8258 TypeError: 'NoneType' object is not subscriptable 
    8259  
    8260 TypeError: 'NoneType' object is not subscriptable 
    8261  
    8262 File
    8263 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8264 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8265 return self._colors[0] 
    8266  
    8267 See log for complete Python traceback. 
    8268  
    8269 Traceback (most recent call last): 
    8270 File
    8271 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8272 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8273 self._drag(event) 
    8274 File
    8275 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8276 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8277 cb(event) 
    8278 File
    8279 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8280 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8281 cb(m) 
    8282 File
    8283 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8284 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8285 self.select_data_cb() # Causes redisplay using GUI settings 
    8286 File
    8287 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8288 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8289 d.redisplay_needed_cb() 
    8290 File
    8291 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8292 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8293 self.redisplay_needed() 
    8294 File
    8295 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8296 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8297 self.show_using_dialog_settings(self.active_volume) 
    8298 File
    8299 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8300 packages/chimerax/map/volume_viewer.py", line 360, in
    8301 show_using_dialog_settings 
    8302 p.use_gui_settings(dr) 
    8303 File
    8304 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8305 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8306 hp.set_threshold_parameters_from_gui() 
    8307 File
    8308 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8309 packages/chimerax/map/volume_viewer.py", line 2765, in
    8310 set_threshold_parameters_from_gui 
    8311 if tuple(s.rgba) != tuple(color): 
    8312 File
    8313 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8314 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8315 return tuple(c/255 for c in self.color) 
    8316 File
    8317 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8318 packages/chimerax/map/volume.py", line 1995, in get_color 
    8319 return Surface.get_color(self) 
    8320 File
    8321 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8322 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8323 return self._colors[0] 
    8324 TypeError: 'NoneType' object is not subscriptable 
    8325  
    8326 TypeError: 'NoneType' object is not subscriptable 
    8327  
    8328 File
    8329 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8330 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8331 return self._colors[0] 
    8332  
    8333 See log for complete Python traceback. 
    8334  
    8335 Traceback (most recent call last): 
    8336 File
    8337 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8338 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8339 self._drag(event) 
    8340 File
    8341 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8342 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8343 cb(event) 
    8344 File
    8345 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8346 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8347 cb(m) 
    8348 File
    8349 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8350 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8351 self.select_data_cb() # Causes redisplay using GUI settings 
    8352 File
    8353 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8354 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8355 d.redisplay_needed_cb() 
    8356 File
    8357 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8358 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8359 self.redisplay_needed() 
    8360 File
    8361 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8362 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8363 self.show_using_dialog_settings(self.active_volume) 
    8364 File
    8365 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8366 packages/chimerax/map/volume_viewer.py", line 360, in
    8367 show_using_dialog_settings 
    8368 p.use_gui_settings(dr) 
    8369 File
    8370 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8371 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8372 hp.set_threshold_parameters_from_gui() 
    8373 File
    8374 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8375 packages/chimerax/map/volume_viewer.py", line 2765, in
    8376 set_threshold_parameters_from_gui 
    8377 if tuple(s.rgba) != tuple(color): 
    8378 File
    8379 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8380 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8381 return tuple(c/255 for c in self.color) 
    8382 File
    8383 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8384 packages/chimerax/map/volume.py", line 1995, in get_color 
    8385 return Surface.get_color(self) 
    8386 File
    8387 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8388 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8389 return self._colors[0] 
    8390 TypeError: 'NoneType' object is not subscriptable 
    8391  
    8392 TypeError: 'NoneType' object is not subscriptable 
    8393  
    8394 File
    8395 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8396 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8397 return self._colors[0] 
    8398  
    8399 See log for complete Python traceback. 
    8400  
    8401 Traceback (most recent call last): 
    8402 File
    8403 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8404 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8405 self._drag(event) 
    8406 File
    8407 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8408 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8409 cb(event) 
    8410 File
    8411 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8412 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8413 cb(m) 
    8414 File
    8415 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8416 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8417 self.select_data_cb() # Causes redisplay using GUI settings 
    8418 File
    8419 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8420 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8421 d.redisplay_needed_cb() 
    8422 File
    8423 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8424 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8425 self.redisplay_needed() 
    8426 File
    8427 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8428 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8429 self.show_using_dialog_settings(self.active_volume) 
    8430 File
    8431 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8432 packages/chimerax/map/volume_viewer.py", line 360, in
    8433 show_using_dialog_settings 
    8434 p.use_gui_settings(dr) 
    8435 File
    8436 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8437 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8438 hp.set_threshold_parameters_from_gui() 
    8439 File
    8440 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8441 packages/chimerax/map/volume_viewer.py", line 2765, in
    8442 set_threshold_parameters_from_gui 
    8443 if tuple(s.rgba) != tuple(color): 
    8444 File
    8445 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8446 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8447 return tuple(c/255 for c in self.color) 
    8448 File
    8449 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8450 packages/chimerax/map/volume.py", line 1995, in get_color 
    8451 return Surface.get_color(self) 
    8452 File
    8453 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8454 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8455 return self._colors[0] 
    8456 TypeError: 'NoneType' object is not subscriptable 
    8457  
    8458 TypeError: 'NoneType' object is not subscriptable 
    8459  
    8460 File
    8461 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8462 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8463 return self._colors[0] 
    8464  
    8465 See log for complete Python traceback. 
    8466  
    8467 Traceback (most recent call last): 
    8468 File
    8469 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8470 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8471 self._drag(event) 
    8472 File
    8473 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8474 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8475 cb(event) 
    8476 File
    8477 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8478 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8479 cb(m) 
    8480 File
    8481 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8482 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8483 self.select_data_cb() # Causes redisplay using GUI settings 
    8484 File
    8485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8486 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8487 d.redisplay_needed_cb() 
    8488 File
    8489 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8490 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8491 self.redisplay_needed() 
    8492 File
    8493 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8494 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8495 self.show_using_dialog_settings(self.active_volume) 
    8496 File
    8497 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8498 packages/chimerax/map/volume_viewer.py", line 360, in
    8499 show_using_dialog_settings 
    8500 p.use_gui_settings(dr) 
    8501 File
    8502 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8503 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8504 hp.set_threshold_parameters_from_gui() 
    8505 File
    8506 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8507 packages/chimerax/map/volume_viewer.py", line 2765, in
    8508 set_threshold_parameters_from_gui 
    8509 if tuple(s.rgba) != tuple(color): 
    8510 File
    8511 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8512 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8513 return tuple(c/255 for c in self.color) 
    8514 File
    8515 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8516 packages/chimerax/map/volume.py", line 1995, in get_color 
    8517 return Surface.get_color(self) 
    8518 File
    8519 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8520 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8521 return self._colors[0] 
    8522 TypeError: 'NoneType' object is not subscriptable 
    8523  
    8524 TypeError: 'NoneType' object is not subscriptable 
    8525  
    8526 File
    8527 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8528 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8529 return self._colors[0] 
    8530  
    8531 See log for complete Python traceback. 
    8532  
    8533 Traceback (most recent call last): 
    8534 File
    8535 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8536 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8537 self._drag(event) 
    8538 File
    8539 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8540 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8541 cb(event) 
    8542 File
    8543 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8544 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8545 cb(m) 
    8546 File
    8547 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8548 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8549 self.select_data_cb() # Causes redisplay using GUI settings 
    8550 File
    8551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8552 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8553 d.redisplay_needed_cb() 
    8554 File
    8555 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8556 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8557 self.redisplay_needed() 
    8558 File
    8559 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8560 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8561 self.show_using_dialog_settings(self.active_volume) 
    8562 File
    8563 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8564 packages/chimerax/map/volume_viewer.py", line 360, in
    8565 show_using_dialog_settings 
    8566 p.use_gui_settings(dr) 
    8567 File
    8568 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8569 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8570 hp.set_threshold_parameters_from_gui() 
    8571 File
    8572 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8573 packages/chimerax/map/volume_viewer.py", line 2765, in
    8574 set_threshold_parameters_from_gui 
    8575 if tuple(s.rgba) != tuple(color): 
    8576 File
    8577 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8578 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8579 return tuple(c/255 for c in self.color) 
    8580 File
    8581 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8582 packages/chimerax/map/volume.py", line 1995, in get_color 
    8583 return Surface.get_color(self) 
    8584 File
    8585 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8586 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8587 return self._colors[0] 
    8588 TypeError: 'NoneType' object is not subscriptable 
    8589  
    8590 TypeError: 'NoneType' object is not subscriptable 
    8591  
    8592 File
    8593 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8594 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8595 return self._colors[0] 
    8596  
    8597 See log for complete Python traceback. 
    8598  
    8599 Traceback (most recent call last): 
    8600 File
    8601 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8602 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8603 self._drag(event) 
    8604 File
    8605 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8606 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8607 cb(event) 
    8608 File
    8609 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8610 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8611 cb(m) 
    8612 File
    8613 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8614 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8615 self.select_data_cb() # Causes redisplay using GUI settings 
    8616 File
    8617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8618 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8619 d.redisplay_needed_cb() 
    8620 File
    8621 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8622 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8623 self.redisplay_needed() 
    8624 File
    8625 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8626 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8627 self.show_using_dialog_settings(self.active_volume) 
    8628 File
    8629 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8630 packages/chimerax/map/volume_viewer.py", line 360, in
    8631 show_using_dialog_settings 
    8632 p.use_gui_settings(dr) 
    8633 File
    8634 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8635 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8636 hp.set_threshold_parameters_from_gui() 
    8637 File
    8638 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8639 packages/chimerax/map/volume_viewer.py", line 2765, in
    8640 set_threshold_parameters_from_gui 
    8641 if tuple(s.rgba) != tuple(color): 
    8642 File
    8643 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8644 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8645 return tuple(c/255 for c in self.color) 
    8646 File
    8647 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8648 packages/chimerax/map/volume.py", line 1995, in get_color 
    8649 return Surface.get_color(self) 
    8650 File
    8651 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8652 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8653 return self._colors[0] 
    8654 TypeError: 'NoneType' object is not subscriptable 
    8655  
    8656 TypeError: 'NoneType' object is not subscriptable 
    8657  
    8658 File
    8659 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8660 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8661 return self._colors[0] 
    8662  
    8663 See log for complete Python traceback. 
    8664  
    8665 Traceback (most recent call last): 
    8666 File
    8667 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8668 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8669 self._drag(event) 
    8670 File
    8671 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8672 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8673 cb(event) 
    8674 File
    8675 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8676 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8677 cb(m) 
    8678 File
    8679 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8680 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8681 self.select_data_cb() # Causes redisplay using GUI settings 
    8682 File
    8683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8684 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8685 d.redisplay_needed_cb() 
    8686 File
    8687 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8688 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8689 self.redisplay_needed() 
    8690 File
    8691 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8692 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8693 self.show_using_dialog_settings(self.active_volume) 
    8694 File
    8695 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8696 packages/chimerax/map/volume_viewer.py", line 360, in
    8697 show_using_dialog_settings 
    8698 p.use_gui_settings(dr) 
    8699 File
    8700 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8701 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8702 hp.set_threshold_parameters_from_gui() 
    8703 File
    8704 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8705 packages/chimerax/map/volume_viewer.py", line 2765, in
    8706 set_threshold_parameters_from_gui 
    8707 if tuple(s.rgba) != tuple(color): 
    8708 File
    8709 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8710 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8711 return tuple(c/255 for c in self.color) 
    8712 File
    8713 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8714 packages/chimerax/map/volume.py", line 1995, in get_color 
    8715 return Surface.get_color(self) 
    8716 File
    8717 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8718 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8719 return self._colors[0] 
    8720 TypeError: 'NoneType' object is not subscriptable 
    8721  
    8722 TypeError: 'NoneType' object is not subscriptable 
    8723  
    8724 File
    8725 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8726 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8727 return self._colors[0] 
    8728  
    8729 See log for complete Python traceback. 
    8730  
    8731 Traceback (most recent call last): 
    8732 File
    8733 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8734 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8735 self._drag(event) 
    8736 File
    8737 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8738 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8739 cb(event) 
    8740 File
    8741 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8742 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8743 cb(m) 
    8744 File
    8745 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8746 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8747 self.select_data_cb() # Causes redisplay using GUI settings 
    8748 File
    8749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8750 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8751 d.redisplay_needed_cb() 
    8752 File
    8753 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8754 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8755 self.redisplay_needed() 
    8756 File
    8757 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8758 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8759 self.show_using_dialog_settings(self.active_volume) 
    8760 File
    8761 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8762 packages/chimerax/map/volume_viewer.py", line 360, in
    8763 show_using_dialog_settings 
    8764 p.use_gui_settings(dr) 
    8765 File
    8766 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8767 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8768 hp.set_threshold_parameters_from_gui() 
    8769 File
    8770 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8771 packages/chimerax/map/volume_viewer.py", line 2765, in
    8772 set_threshold_parameters_from_gui 
    8773 if tuple(s.rgba) != tuple(color): 
    8774 File
    8775 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8776 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8777 return tuple(c/255 for c in self.color) 
    8778 File
    8779 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8780 packages/chimerax/map/volume.py", line 1995, in get_color 
    8781 return Surface.get_color(self) 
    8782 File
    8783 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8784 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8785 return self._colors[0] 
    8786 TypeError: 'NoneType' object is not subscriptable 
    8787  
    8788 TypeError: 'NoneType' object is not subscriptable 
    8789  
    8790 File
    8791 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8792 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8793 return self._colors[0] 
    8794  
    8795 See log for complete Python traceback. 
    8796  
    8797 Traceback (most recent call last): 
    8798 File
    8799 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8800 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    8801 self._drag(event) 
    8802 File
    8803 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8804 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8805 cb(event) 
    8806 File
    8807 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8808 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8809 cb(m) 
    8810 File
    8811 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8812 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8813 self.select_data_cb() # Causes redisplay using GUI settings 
    8814 File
    8815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8816 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8817 d.redisplay_needed_cb() 
    8818 File
    8819 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8820 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8821 self.redisplay_needed() 
    8822 File
    8823 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8824 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8825 self.show_using_dialog_settings(self.active_volume) 
    8826 File
    8827 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8828 packages/chimerax/map/volume_viewer.py", line 360, in
    8829 show_using_dialog_settings 
    8830 p.use_gui_settings(dr) 
    8831 File
    8832 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8833 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8834 hp.set_threshold_parameters_from_gui() 
    8835 File
    8836 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8837 packages/chimerax/map/volume_viewer.py", line 2765, in
    8838 set_threshold_parameters_from_gui 
    8839 if tuple(s.rgba) != tuple(color): 
    8840 File
    8841 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8842 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8843 return tuple(c/255 for c in self.color) 
    8844 File
    8845 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8846 packages/chimerax/map/volume.py", line 1995, in get_color 
    8847 return Surface.get_color(self) 
    8848 File
    8849 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8850 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8851 return self._colors[0] 
    8852 TypeError: 'NoneType' object is not subscriptable 
    8853  
    8854 TypeError: 'NoneType' object is not subscriptable 
    8855  
    8856 File
    8857 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8858 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8859 return self._colors[0] 
    8860  
    8861 See log for complete Python traceback. 
    8862  
    8863 Traceback (most recent call last): 
    8864 File
    8865 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8866 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    8867 self._drag(event) 
    8868 File
    8869 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8870 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    8871 cb(event) 
    8872 File
    8873 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8874 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    8875 cb(m) 
    8876 File
    8877 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8878 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    8879 self.select_data_cb() # Causes redisplay using GUI settings 
    8880 File
    8881 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8882 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8883 d.redisplay_needed_cb() 
    8884 File
    8885 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8886 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8887 self.redisplay_needed() 
    8888 File
    8889 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8890 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8891 self.show_using_dialog_settings(self.active_volume) 
    8892 File
    8893 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8894 packages/chimerax/map/volume_viewer.py", line 360, in
    8895 show_using_dialog_settings 
    8896 p.use_gui_settings(dr) 
    8897 File
    8898 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8899 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8900 hp.set_threshold_parameters_from_gui() 
    8901 File
    8902 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8903 packages/chimerax/map/volume_viewer.py", line 2765, in
    8904 set_threshold_parameters_from_gui 
    8905 if tuple(s.rgba) != tuple(color): 
    8906 File
    8907 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8908 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8909 return tuple(c/255 for c in self.color) 
    8910 File
    8911 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8912 packages/chimerax/map/volume.py", line 1995, in get_color 
    8913 return Surface.get_color(self) 
    8914 File
    8915 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8916 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8917 return self._colors[0] 
    8918 TypeError: 'NoneType' object is not subscriptable 
    8919  
    8920 TypeError: 'NoneType' object is not subscriptable 
    8921  
    8922 File
    8923 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8924 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8925 return self._colors[0] 
    8926  
    8927 See log for complete Python traceback. 
    8928  
    8929 Traceback (most recent call last): 
    8930 File
    8931 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8932 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    8933 cb(event) 
    8934 File
    8935 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8936 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8937 d.redisplay_needed_cb() 
    8938 File
    8939 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8940 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    8941 self.redisplay_needed() 
    8942 File
    8943 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8944 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    8945 self.show_using_dialog_settings(self.active_volume) 
    8946 File
    8947 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8948 packages/chimerax/map/volume_viewer.py", line 360, in
    8949 show_using_dialog_settings 
    8950 p.use_gui_settings(dr) 
    8951 File
    8952 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8953 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    8954 hp.set_threshold_parameters_from_gui() 
    8955 File
    8956 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8957 packages/chimerax/map/volume_viewer.py", line 2765, in
    8958 set_threshold_parameters_from_gui 
    8959 if tuple(s.rgba) != tuple(color): 
    8960 File
    8961 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8962 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    8963 return tuple(c/255 for c in self.color) 
    8964 File
    8965 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8966 packages/chimerax/map/volume.py", line 1995, in get_color 
    8967 return Surface.get_color(self) 
    8968 File
    8969 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8970 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8971 return self._colors[0] 
    8972 TypeError: 'NoneType' object is not subscriptable 
    8973  
    8974 TypeError: 'NoneType' object is not subscriptable 
    8975  
    8976 File
    8977 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8978 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    8979 return self._colors[0] 
    8980  
    8981 See log for complete Python traceback. 
    8982  
    8983 Traceback (most recent call last): 
    8984 File
    8985 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8986 packages/chimerax/map/volume_viewer.py", line 2126, in mousePressEvent 
    8987 cb(event) 
    8988 File
    8989 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8990 packages/chimerax/map/histogram.py", line 365, in select_marker_cb 
    8991 cb(self.markers[i]) 
    8992 File
    8993 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8994 packages/chimerax/map/volume_viewer.py", line 2195, in selected_marker_cb 
    8995 self.select_data_cb() 
    8996 File
    8997 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    8998 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    8999 d.redisplay_needed_cb() 
    9000 File
    9001 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9002 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9003 self.redisplay_needed() 
    9004 File
    9005 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9006 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9007 self.show_using_dialog_settings(self.active_volume) 
    9008 File
    9009 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9010 packages/chimerax/map/volume_viewer.py", line 360, in
    9011 show_using_dialog_settings 
    9012 p.use_gui_settings(dr) 
    9013 File
    9014 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9015 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9016 hp.set_threshold_parameters_from_gui() 
    9017 File
    9018 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9019 packages/chimerax/map/volume_viewer.py", line 2765, in
    9020 set_threshold_parameters_from_gui 
    9021 if tuple(s.rgba) != tuple(color): 
    9022 File
    9023 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9024 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9025 return tuple(c/255 for c in self.color) 
    9026 File
    9027 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9028 packages/chimerax/map/volume.py", line 1995, in get_color 
    9029 return Surface.get_color(self) 
    9030 File
    9031 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9032 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9033 return self._colors[0] 
    9034 TypeError: 'NoneType' object is not subscriptable 
    9035  
    9036 TypeError: 'NoneType' object is not subscriptable 
    9037  
    9038 File
    9039 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9040 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9041 return self._colors[0] 
    9042  
    9043 See log for complete Python traceback. 
    9044  
    9045 Traceback (most recent call last): 
    9046 File
    9047 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9048 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9049 self._drag(event) 
    9050 File
    9051 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9052 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9053 cb(event) 
    9054 File
    9055 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9056 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9057 cb(m) 
    9058 File
    9059 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9060 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9061 self.select_data_cb() # Causes redisplay using GUI settings 
    9062 File
    9063 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9064 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9065 d.redisplay_needed_cb() 
    9066 File
    9067 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9068 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9069 self.redisplay_needed() 
    9070 File
    9071 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9072 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9073 self.show_using_dialog_settings(self.active_volume) 
    9074 File
    9075 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9076 packages/chimerax/map/volume_viewer.py", line 360, in
    9077 show_using_dialog_settings 
    9078 p.use_gui_settings(dr) 
    9079 File
    9080 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9081 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9082 hp.set_threshold_parameters_from_gui() 
    9083 File
    9084 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9085 packages/chimerax/map/volume_viewer.py", line 2765, in
    9086 set_threshold_parameters_from_gui 
    9087 if tuple(s.rgba) != tuple(color): 
    9088 File
    9089 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9090 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9091 return tuple(c/255 for c in self.color) 
    9092 File
    9093 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9094 packages/chimerax/map/volume.py", line 1995, in get_color 
    9095 return Surface.get_color(self) 
    9096 File
    9097 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9098 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9099 return self._colors[0] 
    9100 TypeError: 'NoneType' object is not subscriptable 
    9101  
    9102 TypeError: 'NoneType' object is not subscriptable 
    9103  
    9104 File
    9105 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9106 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9107 return self._colors[0] 
    9108  
    9109 See log for complete Python traceback. 
    9110  
    9111 Traceback (most recent call last): 
    9112 File
    9113 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9114 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9115 self._drag(event) 
    9116 File
    9117 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9118 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9119 cb(event) 
    9120 File
    9121 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9122 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9123 cb(m) 
    9124 File
    9125 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9126 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9127 self.select_data_cb() # Causes redisplay using GUI settings 
    9128 File
    9129 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9130 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9131 d.redisplay_needed_cb() 
    9132 File
    9133 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9134 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9135 self.redisplay_needed() 
    9136 File
    9137 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9138 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9139 self.show_using_dialog_settings(self.active_volume) 
    9140 File
    9141 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9142 packages/chimerax/map/volume_viewer.py", line 360, in
    9143 show_using_dialog_settings 
    9144 p.use_gui_settings(dr) 
    9145 File
    9146 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9147 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9148 hp.set_threshold_parameters_from_gui() 
    9149 File
    9150 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9151 packages/chimerax/map/volume_viewer.py", line 2765, in
    9152 set_threshold_parameters_from_gui 
    9153 if tuple(s.rgba) != tuple(color): 
    9154 File
    9155 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9156 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9157 return tuple(c/255 for c in self.color) 
    9158 File
    9159 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9160 packages/chimerax/map/volume.py", line 1995, in get_color 
    9161 return Surface.get_color(self) 
    9162 File
    9163 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9164 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9165 return self._colors[0] 
    9166 TypeError: 'NoneType' object is not subscriptable 
    9167  
    9168 TypeError: 'NoneType' object is not subscriptable 
    9169  
    9170 File
    9171 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9172 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9173 return self._colors[0] 
    9174  
    9175 See log for complete Python traceback. 
    9176  
    9177 Traceback (most recent call last): 
    9178 File
    9179 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9180 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9181 self._drag(event) 
    9182 File
    9183 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9184 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9185 cb(event) 
    9186 File
    9187 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9188 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9189 cb(m) 
    9190 File
    9191 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9192 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9193 self.select_data_cb() # Causes redisplay using GUI settings 
    9194 File
    9195 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9196 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9197 d.redisplay_needed_cb() 
    9198 File
    9199 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9200 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9201 self.redisplay_needed() 
    9202 File
    9203 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9204 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9205 self.show_using_dialog_settings(self.active_volume) 
    9206 File
    9207 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9208 packages/chimerax/map/volume_viewer.py", line 360, in
    9209 show_using_dialog_settings 
    9210 p.use_gui_settings(dr) 
    9211 File
    9212 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9213 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9214 hp.set_threshold_parameters_from_gui() 
    9215 File
    9216 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9217 packages/chimerax/map/volume_viewer.py", line 2765, in
    9218 set_threshold_parameters_from_gui 
    9219 if tuple(s.rgba) != tuple(color): 
    9220 File
    9221 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9222 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9223 return tuple(c/255 for c in self.color) 
    9224 File
    9225 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9226 packages/chimerax/map/volume.py", line 1995, in get_color 
    9227 return Surface.get_color(self) 
    9228 File
    9229 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9230 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9231 return self._colors[0] 
    9232 TypeError: 'NoneType' object is not subscriptable 
    9233  
    9234 TypeError: 'NoneType' object is not subscriptable 
    9235  
    9236 File
    9237 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9238 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9239 return self._colors[0] 
    9240  
    9241 See log for complete Python traceback. 
    9242  
    9243 Traceback (most recent call last): 
    9244 File
    9245 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9246 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9247 self._drag(event) 
    9248 File
    9249 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9250 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9251 cb(event) 
    9252 File
    9253 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9254 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9255 cb(m) 
    9256 File
    9257 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9258 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9259 self.select_data_cb() # Causes redisplay using GUI settings 
    9260 File
    9261 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9262 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9263 d.redisplay_needed_cb() 
    9264 File
    9265 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9266 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9267 self.redisplay_needed() 
    9268 File
    9269 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9270 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9271 self.show_using_dialog_settings(self.active_volume) 
    9272 File
    9273 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9274 packages/chimerax/map/volume_viewer.py", line 360, in
    9275 show_using_dialog_settings 
    9276 p.use_gui_settings(dr) 
    9277 File
    9278 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9279 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9280 hp.set_threshold_parameters_from_gui() 
    9281 File
    9282 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9283 packages/chimerax/map/volume_viewer.py", line 2765, in
    9284 set_threshold_parameters_from_gui 
    9285 if tuple(s.rgba) != tuple(color): 
    9286 File
    9287 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9288 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9289 return tuple(c/255 for c in self.color) 
    9290 File
    9291 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9292 packages/chimerax/map/volume.py", line 1995, in get_color 
    9293 return Surface.get_color(self) 
    9294 File
    9295 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9296 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9297 return self._colors[0] 
    9298 TypeError: 'NoneType' object is not subscriptable 
    9299  
    9300 TypeError: 'NoneType' object is not subscriptable 
    9301  
    9302 File
    9303 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9304 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9305 return self._colors[0] 
    9306  
    9307 See log for complete Python traceback. 
    9308  
    9309 Traceback (most recent call last): 
    9310 File
    9311 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9312 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9313 self._drag(event) 
    9314 File
    9315 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9316 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9317 cb(event) 
    9318 File
    9319 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9320 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9321 cb(m) 
    9322 File
    9323 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9324 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9325 self.select_data_cb() # Causes redisplay using GUI settings 
    9326 File
    9327 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9328 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9329 d.redisplay_needed_cb() 
    9330 File
    9331 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9332 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9333 self.redisplay_needed() 
    9334 File
    9335 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9336 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9337 self.show_using_dialog_settings(self.active_volume) 
    9338 File
    9339 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9340 packages/chimerax/map/volume_viewer.py", line 360, in
    9341 show_using_dialog_settings 
    9342 p.use_gui_settings(dr) 
    9343 File
    9344 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9345 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9346 hp.set_threshold_parameters_from_gui() 
    9347 File
    9348 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9349 packages/chimerax/map/volume_viewer.py", line 2765, in
    9350 set_threshold_parameters_from_gui 
    9351 if tuple(s.rgba) != tuple(color): 
    9352 File
    9353 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9354 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9355 return tuple(c/255 for c in self.color) 
    9356 File
    9357 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9358 packages/chimerax/map/volume.py", line 1995, in get_color 
    9359 return Surface.get_color(self) 
    9360 File
    9361 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9362 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9363 return self._colors[0] 
    9364 TypeError: 'NoneType' object is not subscriptable 
    9365  
    9366 TypeError: 'NoneType' object is not subscriptable 
    9367  
    9368 File
    9369 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9370 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9371 return self._colors[0] 
    9372  
    9373 See log for complete Python traceback. 
    9374  
    9375 Traceback (most recent call last): 
    9376 File
    9377 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9378 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9379 self._drag(event) 
    9380 File
    9381 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9382 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9383 cb(event) 
    9384 File
    9385 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9386 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9387 cb(m) 
    9388 File
    9389 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9390 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9391 self.select_data_cb() # Causes redisplay using GUI settings 
    9392 File
    9393 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9394 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9395 d.redisplay_needed_cb() 
    9396 File
    9397 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9398 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9399 self.redisplay_needed() 
    9400 File
    9401 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9402 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9403 self.show_using_dialog_settings(self.active_volume) 
    9404 File
    9405 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9406 packages/chimerax/map/volume_viewer.py", line 360, in
    9407 show_using_dialog_settings 
    9408 p.use_gui_settings(dr) 
    9409 File
    9410 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9411 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9412 hp.set_threshold_parameters_from_gui() 
    9413 File
    9414 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9415 packages/chimerax/map/volume_viewer.py", line 2765, in
    9416 set_threshold_parameters_from_gui 
    9417 if tuple(s.rgba) != tuple(color): 
    9418 File
    9419 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9420 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9421 return tuple(c/255 for c in self.color) 
    9422 File
    9423 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9424 packages/chimerax/map/volume.py", line 1995, in get_color 
    9425 return Surface.get_color(self) 
    9426 File
    9427 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9428 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9429 return self._colors[0] 
    9430 TypeError: 'NoneType' object is not subscriptable 
    9431  
    9432 TypeError: 'NoneType' object is not subscriptable 
    9433  
    9434 File
    9435 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9436 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9437 return self._colors[0] 
    9438  
    9439 See log for complete Python traceback. 
    9440  
    9441 Traceback (most recent call last): 
    9442 File
    9443 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9444 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9445 self._drag(event) 
    9446 File
    9447 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9448 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9449 cb(event) 
    9450 File
    9451 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9452 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9453 cb(m) 
    9454 File
    9455 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9456 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9457 self.select_data_cb() # Causes redisplay using GUI settings 
    9458 File
    9459 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9460 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9461 d.redisplay_needed_cb() 
    9462 File
    9463 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9464 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9465 self.redisplay_needed() 
    9466 File
    9467 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9468 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9469 self.show_using_dialog_settings(self.active_volume) 
    9470 File
    9471 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9472 packages/chimerax/map/volume_viewer.py", line 360, in
    9473 show_using_dialog_settings 
    9474 p.use_gui_settings(dr) 
    9475 File
    9476 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9477 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9478 hp.set_threshold_parameters_from_gui() 
    9479 File
    9480 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9481 packages/chimerax/map/volume_viewer.py", line 2765, in
    9482 set_threshold_parameters_from_gui 
    9483 if tuple(s.rgba) != tuple(color): 
    9484 File
    9485 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9486 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9487 return tuple(c/255 for c in self.color) 
    9488 File
    9489 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9490 packages/chimerax/map/volume.py", line 1995, in get_color 
    9491 return Surface.get_color(self) 
    9492 File
    9493 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9494 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9495 return self._colors[0] 
    9496 TypeError: 'NoneType' object is not subscriptable 
    9497  
    9498 TypeError: 'NoneType' object is not subscriptable 
    9499  
    9500 File
    9501 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9502 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9503 return self._colors[0] 
    9504  
    9505 See log for complete Python traceback. 
    9506  
    9507 Traceback (most recent call last): 
    9508 File
    9509 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9510 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9511 self._drag(event) 
    9512 File
    9513 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9514 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9515 cb(event) 
    9516 File
    9517 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9518 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9519 cb(m) 
    9520 File
    9521 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9522 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9523 self.select_data_cb() # Causes redisplay using GUI settings 
    9524 File
    9525 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9526 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9527 d.redisplay_needed_cb() 
    9528 File
    9529 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9530 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9531 self.redisplay_needed() 
    9532 File
    9533 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9534 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9535 self.show_using_dialog_settings(self.active_volume) 
    9536 File
    9537 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9538 packages/chimerax/map/volume_viewer.py", line 360, in
    9539 show_using_dialog_settings 
    9540 p.use_gui_settings(dr) 
    9541 File
    9542 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9543 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9544 hp.set_threshold_parameters_from_gui() 
    9545 File
    9546 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9547 packages/chimerax/map/volume_viewer.py", line 2765, in
    9548 set_threshold_parameters_from_gui 
    9549 if tuple(s.rgba) != tuple(color): 
    9550 File
    9551 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9552 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9553 return tuple(c/255 for c in self.color) 
    9554 File
    9555 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9556 packages/chimerax/map/volume.py", line 1995, in get_color 
    9557 return Surface.get_color(self) 
    9558 File
    9559 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9560 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9561 return self._colors[0] 
    9562 TypeError: 'NoneType' object is not subscriptable 
    9563  
    9564 TypeError: 'NoneType' object is not subscriptable 
    9565  
    9566 File
    9567 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9568 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9569 return self._colors[0] 
    9570  
    9571 See log for complete Python traceback. 
    9572  
    9573 Traceback (most recent call last): 
    9574 File
    9575 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9576 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9577 self._drag(event) 
    9578 File
    9579 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9580 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9581 cb(event) 
    9582 File
    9583 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9584 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9585 cb(m) 
    9586 File
    9587 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9588 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9589 self.select_data_cb() # Causes redisplay using GUI settings 
    9590 File
    9591 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9592 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9593 d.redisplay_needed_cb() 
    9594 File
    9595 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9596 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9597 self.redisplay_needed() 
    9598 File
    9599 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9600 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9601 self.show_using_dialog_settings(self.active_volume) 
    9602 File
    9603 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9604 packages/chimerax/map/volume_viewer.py", line 360, in
    9605 show_using_dialog_settings 
    9606 p.use_gui_settings(dr) 
    9607 File
    9608 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9609 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9610 hp.set_threshold_parameters_from_gui() 
    9611 File
    9612 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9613 packages/chimerax/map/volume_viewer.py", line 2765, in
    9614 set_threshold_parameters_from_gui 
    9615 if tuple(s.rgba) != tuple(color): 
    9616 File
    9617 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9618 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9619 return tuple(c/255 for c in self.color) 
    9620 File
    9621 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9622 packages/chimerax/map/volume.py", line 1995, in get_color 
    9623 return Surface.get_color(self) 
    9624 File
    9625 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9626 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9627 return self._colors[0] 
    9628 TypeError: 'NoneType' object is not subscriptable 
    9629  
    9630 TypeError: 'NoneType' object is not subscriptable 
    9631  
    9632 File
    9633 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9634 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9635 return self._colors[0] 
    9636  
    9637 See log for complete Python traceback. 
    9638  
    9639 Traceback (most recent call last): 
    9640 File
    9641 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9642 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9643 self._drag(event) 
    9644 File
    9645 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9646 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9647 cb(event) 
    9648 File
    9649 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9650 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9651 cb(m) 
    9652 File
    9653 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9654 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9655 self.select_data_cb() # Causes redisplay using GUI settings 
    9656 File
    9657 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9658 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9659 d.redisplay_needed_cb() 
    9660 File
    9661 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9662 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9663 self.redisplay_needed() 
    9664 File
    9665 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9666 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9667 self.show_using_dialog_settings(self.active_volume) 
    9668 File
    9669 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9670 packages/chimerax/map/volume_viewer.py", line 360, in
    9671 show_using_dialog_settings 
    9672 p.use_gui_settings(dr) 
    9673 File
    9674 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9675 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9676 hp.set_threshold_parameters_from_gui() 
    9677 File
    9678 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9679 packages/chimerax/map/volume_viewer.py", line 2765, in
    9680 set_threshold_parameters_from_gui 
    9681 if tuple(s.rgba) != tuple(color): 
    9682 File
    9683 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9684 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9685 return tuple(c/255 for c in self.color) 
    9686 File
    9687 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9688 packages/chimerax/map/volume.py", line 1995, in get_color 
    9689 return Surface.get_color(self) 
    9690 File
    9691 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9692 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9693 return self._colors[0] 
    9694 TypeError: 'NoneType' object is not subscriptable 
    9695  
    9696 TypeError: 'NoneType' object is not subscriptable 
    9697  
    9698 File
    9699 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9700 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9701 return self._colors[0] 
    9702  
    9703 See log for complete Python traceback. 
    9704  
    9705 Traceback (most recent call last): 
    9706 File
    9707 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9708 packages/chimerax/map/volume_viewer.py", line 2128, in mouseMoveEvent 
    9709 self._drag(event) 
    9710 File
    9711 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9712 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9713 cb(event) 
    9714 File
    9715 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9716 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9717 cb(m) 
    9718 File
    9719 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9720 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9721 self.select_data_cb() # Causes redisplay using GUI settings 
    9722 File
    9723 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9724 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9725 d.redisplay_needed_cb() 
    9726 File
    9727 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9728 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9729 self.redisplay_needed() 
    9730 File
    9731 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9732 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9733 self.show_using_dialog_settings(self.active_volume) 
    9734 File
    9735 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9736 packages/chimerax/map/volume_viewer.py", line 360, in
    9737 show_using_dialog_settings 
    9738 p.use_gui_settings(dr) 
    9739 File
    9740 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9741 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9742 hp.set_threshold_parameters_from_gui() 
    9743 File
    9744 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9745 packages/chimerax/map/volume_viewer.py", line 2765, in
    9746 set_threshold_parameters_from_gui 
    9747 if tuple(s.rgba) != tuple(color): 
    9748 File
    9749 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9750 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9751 return tuple(c/255 for c in self.color) 
    9752 File
    9753 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9754 packages/chimerax/map/volume.py", line 1995, in get_color 
    9755 return Surface.get_color(self) 
    9756 File
    9757 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9758 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9759 return self._colors[0] 
    9760 TypeError: 'NoneType' object is not subscriptable 
    9761  
    9762 TypeError: 'NoneType' object is not subscriptable 
    9763  
    9764 File
    9765 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9766 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9767 return self._colors[0] 
    9768  
    9769 See log for complete Python traceback. 
    9770  
    9771 Traceback (most recent call last): 
    9772 File
    9773 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9774 packages/chimerax/map/volume_viewer.py", line 2135, in mouseReleaseEvent 
    9775 self._drag(event) 
    9776 File
    9777 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9778 packages/chimerax/map/volume_viewer.py", line 2132, in _drag 
    9779 cb(event) 
    9780 File
    9781 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9782 packages/chimerax/map/histogram.py", line 414, in move_marker_cb 
    9783 cb(m) 
    9784 File
    9785 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9786 packages/chimerax/map/volume_viewer.py", line 2203, in moved_marker_cb 
    9787 self.select_data_cb() # Causes redisplay using GUI settings 
    9788 File
    9789 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9790 packages/chimerax/map/volume_viewer.py", line 2189, in select_data_cb 
    9791 d.redisplay_needed_cb() 
    9792 File
    9793 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9794 packages/chimerax/map/volume_viewer.py", line 294, in redisplay_needed_cb 
    9795 self.redisplay_needed() 
    9796 File
    9797 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9798 packages/chimerax/map/volume_viewer.py", line 320, in redisplay_needed 
    9799 self.show_using_dialog_settings(self.active_volume) 
    9800 File
    9801 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9802 packages/chimerax/map/volume_viewer.py", line 360, in
    9803 show_using_dialog_settings 
    9804 p.use_gui_settings(dr) 
    9805 File
    9806 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9807 packages/chimerax/map/volume_viewer.py", line 1666, in use_gui_settings 
    9808 hp.set_threshold_parameters_from_gui() 
    9809 File
    9810 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9811 packages/chimerax/map/volume_viewer.py", line 2765, in
    9812 set_threshold_parameters_from_gui 
    9813 if tuple(s.rgba) != tuple(color): 
    9814 File
    9815 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9816 packages/chimerax/map/volume.py", line 1967, in _get_rgba 
    9817 return tuple(c/255 for c in self.color) 
    9818 File
    9819 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9820 packages/chimerax/map/volume.py", line 1995, in get_color 
    9821 return Surface.get_color(self) 
    9822 File
    9823 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9824 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9825 return self._colors[0] 
    9826 TypeError: 'NoneType' object is not subscriptable 
    9827  
    9828 TypeError: 'NoneType' object is not subscriptable 
    9829  
    9830 File
    9831 "/Applications/ChimeraX-1.0-rc-2020.05.29.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
    9832 packages/chimerax/graphics/drawing.py", line 530, in get_color 
    9833 return self._colors[0] 
    9834  
    9835 See log for complete Python traceback. 
    9836  
     459
     460[_many_ of these tracebacks deleted]
     461
    9837462Traceback (most recent call last): 
    9838463File