self._positions is None

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Linux-3.10.0-693.el7.x86_64-x86_64-with-centos-7.4.1708-Core
ChimeraX Version: 0.9 (2019-01-23)
Description
(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
note | Traceback (most recent call last):  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/toolshed/__init__.py", line 338, in __init__  
  
self.init_available_from_cache(logger)  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/toolshed/__init__.py", line 449, in
init_available_from_cache  
  
abc.load_from_cache()  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/toolshed/available.py", line 64, in load_from_cache  
  
b = _build_bundle(d)  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/toolshed/available.py", line 249, in _build_bundle  
  
keywords = _extract_extra_keywords(keywords)  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/toolshed/installed.py", line 270, in
_extract_extra_keywords  
  
all_kwds = [k.strip() for k in kwds.split(',')]  
  
AttributeError: 'list' object has no attribute 'split'  
  
  
  
  
UCSF ChimeraX version: 0.9 (2019-01-23)  
How to cite UCSF ChimeraX  

> open xxx.cxs

Unable to restore session, resetting.  
  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/session.py", line 596, in restore  
obj = sm.restore_snapshot(self, data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/atomic/molobject.py", line 569, in restore_snapshot  
for ses_id, structure in data['structure mapping'].items():  
TypeError: 'NoneType' object is not subscriptable  
  
opened ChimeraX session  
Traceback (most recent call last):  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/triggerset.py", line 130, in invoke  
return self._func(self._name, data)  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/map/volume.py", line 3406, in _update_drawings  
if v.display:  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 311, in get_display  
return self._any_displayed_positions and len(self._positions) > 0  
TypeError: object of type 'NoneType' has no len()  
  
Error processing trigger "graphics update": object of type 'NoneType' has no
len():  
TypeError: object of type 'NoneType' has no len()  
  
File "/opt/UCSF/ChimeraX-daily/lib/python3.7/site-
packages/chimerax/core/graphics/drawing.py", line 311, 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 418.43
OpenGL renderer: GeForce RTX 2080 Ti/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation

[Eric Pettersen]

duplicate of #2146