Bug reporter broken: error in new locale.getdefaultlocale() code

[Tom Goddard]

Bug reporter has been broken on Mac for the last 16 days in daily builds due to a change in the bug reporter code.

UCSF ChimeraX version: 1.4.dev202201200604 (2022-01-20)
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Traceback (most recent call last):

File "/Users/goddard/Desktop/ChimeraX Jan 20 2022.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/bug_reporter/bug_reporter_gui.py", line 375, in <lambda>

mw.add_menu_entry(Help, 'Report a Bug', lambda: show_bug_reporter(session),

File "/Users/goddard/Desktop/ChimeraX Jan 20 2022.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/bug_reporter/bug_reporter_gui.py", line 367, in show_bug_reporter

tool = BugReporter(session, tool_name)

File "/Users/goddard/Desktop/ChimeraX Jan 20 2022.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/bug_reporter/bug_reporter_gui.py", line 115, in init

info += f"\n\nLocale: {'.'.join(locale.getdefaultlocale())}\n"

TypeError: sequence item 0: expected str instance, NoneType found

TypeError: sequence item 0: expected str instance, NoneType found

File "/Users/goddard/Desktop/ChimeraX Jan 20 2022.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/bug_reporter/bug_reporter_gui.py", line 115, in init
info += f"\n\nLocale: {'.'.join(locale.getdefaultlocale())}\n"

See log for complete Python traceback.

[Greg Couch]

The old code was: info += f"\n\nLocale: {locale.getdefaultlocale()}\n". What does locale.getdefaultlocale() return on macOS? The documentation for locale.getdefaultlocale says it returns a tuple.

[goddard@…]

On macOS 10.15.7 

import locale
locale.getdefaultlocale()
(None, 'UTF-8')

getdefaultlocale() documentation says the tuple values can be None.

[Greg Couch]

Fixed. See ​https://bugs.python.org/issue18378 for a discussion of this problem.