Author terry.reedy
Recipients terry.reedy
Date 2020-07-29.03:33:22
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Message-id <1595993603.42.0.358377843337.issue41432@roundup.psfhosted.org>
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https://stackoverflow.com/questions/35397377/python-freezes-when-configuring-idle froze IDLE with a custom theme missing 'colours for the blinker and highlighting'.  I reported some experiments there.  Tracebacks might help, but

Proposal 1: check theme before try to paint.  All keys present?  Replace missing with normal colors.


https://stackoverflow.com/questions/63137659/idle-crashing-when-i-press-configure-idle froze IDLE with a custom theme with a bad color "#00224".

 File "C:\Users\...\idlelib\configdialog.py", line 1279, in paint_theme_sample
    self.highlight_sample.tag_config(element, **colors)
...
_tkinter.TclError: invalid color name "#00224"

Proposal 2: wrap line in try-except, if error text matches, extract bad color, replace any occurrence of bad color with "#000000" (black) or "#FFFFFF" (white), report to user with suggestion to edit.  Maybe save first.  Should do within loop in case more errors.
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Date User Action Args
2020-07-29 03:33:23terry.reedysetrecipients: + terry.reedy
2020-07-29 03:33:23terry.reedysetmessageid: <1595993603.42.0.358377843337.issue41432@roundup.psfhosted.org>
2020-07-29 03:33:23terry.reedylinkissue41432 messages
2020-07-29 03:33:22terry.reedycreate