Session restore: 'Ring' object has no attribute '_c_pointer_ref'

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Linux-3.10.0-1062.9.1.el7.x86_64-x86_64-with-centos-7.7.1908-Core
ChimeraX Version: 0.9 (2019-06-06)
Description
(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
warning | 'clip' is a prefix of an existing command 'clipper'  
  
UCSF ChimeraX version: 0.9 (2019-06-06)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /mol/ban/letea/Kraken-Tea/Manuscript-prep/Figures/AP-site-
occupation/AP-site-IF-RNA-mtSAF39-IF3.cxs

opened ChimeraX session  
Traceback (most recent call last):  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 2637, in
_update_graphics_if_needed  
s[i]._update_graphics_if_needed()  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 314, in
_update_graphics_if_needed  
self._create_ring_graphics()  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/structure.py", line 500, in _create_ring_graphics  
atoms = ring.ordered_atoms  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 161, in get_prop  
vcount = getattr(self, value_count)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 93, in get_prop  
cget(self._c_pointer_ref, 1, v_ref)  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
Error processing trigger "graphics update": 'Ring' object has no attribute
'_c_pointer_ref':  
AttributeError: 'Ring' object has no attribute '_c_pointer_ref'  
  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/atomic/molc.py", line 93, in get_prop  
cget(self._c_pointer_ref, 1, v_ref)  
  
See log for complete Python traceback.  
  

> close #2

> close #4

> close #5

> show #1.3:574-579 atoms

> toolshed show "Side View"

> show #1

> show #!1 models

> hide #1 atoms

Traceback (most recent call last):  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/sideview/tool.py", line 108, in _redraw  
self.render()  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/sideview/tool.py", line 269, in render  
self.view.draw()  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/view.py", line 162, in draw  
self._draw_scene(camera, drawings)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/view.py", line 224, in _draw_scene  
draw_opaque(r, opaque_drawings)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 1394, in draw_opaque  
_draw_multiple(drawings, renderer, Drawing.OPAQUE_DRAW_PASS)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 1405, in _draw_multiple  
d.draw(renderer, draw_pass)  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 694, in draw  
if not self.display:  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 317, in get_display  
return self._any_displayed_positions and len(self._positions) > 0  
TypeError: object of type 'NoneType' has no len()  
  
Error processing trigger "frame drawn": object of type 'NoneType' has no
len():  
TypeError: object of type 'NoneType' has no len()  
  
File "/programs/x86_64-linux/chimerax/0.9/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 317, in get_display  
return self._any_displayed_positions and len(self._positions) > 0  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.0 NVIDIA 440.33.01
OpenGL renderer: GeForce GTX 1080 Ti/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation

[Eric Pettersen]

Fixed on 10/24