Issue 41432: IDLE: Handle bad highlight tab color config

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/85604

classification

Title:	IDLE: Handle bad highlight tab color config
Type:	behavior	Stage:	test needed
Components:	IDLE	Versions:	Python 3.10

process

Status:	open	Resolution:
Dependencies:		Superseder:
Assigned To:	terry.reedy	Nosy List:	terry.reedy
Priority:	normal	Keywords:

Created on 2020-07-29 03:33 by terry.reedy, last changed 2022-04-11 14:59 by admin.

Messages (1)
msg374558 - (view)	Author: Terry J. Reedy (terry.reedy) *	Date: 2020-07-29 03:33
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.

msg374558 - (view)

Author: Terry J. Reedy (terry.reedy) * (Python committer)

Date: 2020-07-29 03:33

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.

History
Date	User	Action	Args
2022-04-11 14:59:34	admin	set	github: 85604
2020-07-29 03:33:23	terry.reedy	create