command save-session traceback (but menu works)

[Elaine Meng]

I could save the attached session with the menu, but trying to save it with a command like

save ~/Desktop/test.cxs

gave a traceback:
Traceback (most recent call last):
File "/Users/meng/Desktop/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/cmd_line/gui.py", line 167, in execute
cmd.run(cmd_text)
File "/Users/meng/Desktop/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/commands/cli.py", line 2200, in run
results.append(ci.function(session, kw_args))
File "/Users/meng/Desktop/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/commands/save.py", line 54, in save
save_session(session, filename)
File "/Users/meng/Desktop/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/session.py", line 553, in save
utils.set_file_icon(filename, image)
File "/Users/meng/Desktop/ChimeraX.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/utils.py", line 85, in set_file_icon
from . import _mac_util
ImportError: dynamic module does not define module export function (PyInitmac_util)

[Elaine Meng]

However, I can't restore the attached session (saved from the menu) anyway. Maybe that is a separate bug.

[Eric Pettersen]

The mac icon code seems to be a Tom Goddard special. Reassigning.

[Tom Goddard]

Fixed.

The code that makes the session file Mac icon show a thumbnail image was broken because changes for the ChimeraX Windows port caused the module initialization function not to be exported.