id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
2023	Unexpected None in data given to BasicActions.restore_snapshot()	nicholas.sofos@…	Greg Couch	"{{{
The following bug report has been submitted:
Platform:        Darwin-18.6.0-x86_64-i386-64bit
ChimeraX Version: 0.91 (2019-06-06)
Description
(Describe the actions that caused this problem to occur here)

Log:
UCSF ChimeraX version: 0.91 (2019-06-06)  
© 2016-2019 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open
/Users/hqj603/Desktop/Postdoc_Montoya_lab/CmrB_ChimeraX_sessions/apo_Cmr7_overview_040619.cxs

Unable to restore session, resetting.  
  
Traceback (most recent call last):  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/session.py"", line 628, in restore  
obj = sm.restore_snapshot(self, data)  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/basic_actions/statemgr.py"", line 65, in restore_snapshot  
cmd.name_frozen(session, name, Objects(**value))  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 53, in __init__  
{ m:m.triggers.add_handler(""deleted"", self._model_deleted_cb) for m in
self._models })  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 53, in <dictcomp>  
{ m:m.triggers.add_handler(""deleted"", self._model_deleted_cb) for m in
self._models })  
AttributeError: 'NoneType' object has no attribute 'triggers'  
  
Error processing trigger ""deleted"": 'Objects' object has no attribute
'_handlers':  
AttributeError: 'Objects' object has no attribute '_handlers'  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 73, in _model_deleted_cb  
del self._handlers[model]  
  
See log for complete Python traceback.  
  
Summary of feedback from opening
/Users/hqj603/Desktop/Postdoc_Montoya_lab/CmrB_ChimeraX_sessions/apo_Cmr7_overview_040619.cxs  
---  
note | Traceback (most recent call last):  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/session.py"", line 628, in restore  
  
obj = sm.restore_snapshot(self, data)  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/basic_actions/statemgr.py"", line 65, in restore_snapshot  
  
cmd.name_frozen(session, name, Objects(**value))  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 53, in __init__  
  
{ m:m.triggers.add_handler(""deleted"", self._model_deleted_cb) for m in
self._models })  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 53, in <dictcomp>  
  
{ m:m.triggers.add_handler(""deleted"", self._model_deleted_cb) for m in
self._models })  
  
AttributeError: 'NoneType' object has no attribute 'triggers'  
  
  
  
During handling of the above exception, another exception occurred:  
  
  
  
Traceback (most recent call last):  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/triggerset.py"", line 130, in invoke  
  
return self._func(self._name, data)  
  
File
""/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/chimerax/core/objects.py"", line 73, in _model_deleted_cb  
  
del self._handlers[model]  
  
AttributeError: 'Objects' object has no attribute '_handlers'  
  
  
  
  
opened ChimeraX session  




OpenGL version: 4.1 INTEL-12.9.22
OpenGL renderer: Intel Iris Pro OpenGL Engine
OpenGL vendor: Intel Inc.

}}}
"	defect	closed	normal		Sessions		duplicate						all	ChimeraX