id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
909	Closing a labeled pseudobond model causes an error	meng@…	Tom Goddard	"open 1zik 1gcn
hb #1 restrict #2 show t rev t
label color yellow
move y -10 mod #2
~hb

results in:

Error processing trigger ""graphics update""
Traceback (most recent call last):
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/core/triggerset.py"", line 126, in invoke
return self._func(self._name, data)
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/label/label3d.py"", line 333, in _update_graphics_if_needed
self.delete_labels(delo)
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/label/label3d.py"", line 290, in delete_labels
self.session.models.close([self])
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/core/models.py"", line 419, in close
self.remove(models)
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/core/models.py"", line 397, in remove
mlist.sort(key=lambda m: len(m.id), reverse=True)
File ""/Users/pett/src/chimerax/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/chimerax/core/models.py"", line 397, in <lambda>
mlist.sort(key=lambda m: len(m.id), reverse=True)
TypeError: object of type 'NoneType' has no len()"	defect	closed	blocker	0.5	Graphics		fixed		Eric Pettersen				all	ChimeraX