[3.15] gh-155974: Restore the window attributes when a curses write fails (GH-155975) - #156136
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[3.15] gh-155974: Restore the window attributes when a curses write fails (GH-155975)#156136miss-islington wants to merge 1 commit into
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…ils (pythonGH-155975) addstr(), addnstr(), insstr() and insnstr() set the window rendition to the caller's attr, write, then restore the previous rendition. Since 30dde1e the restore sits below an early return taken when the write fails, so a failed write leaves the caller's attr on the window and drops whatever the application had set with attrset(). Restore the rendition first and report the write error afterwards. A wattrset() failure is still reported when the write itself succeeded. (cherry picked from commit 83531fd39f24f873671c38b981061afe1730613f) Co-authored-by: Vyron Vasileiadis <hi@fedonman.com>
This was referenced Aug 20, 2026
serhiy-storchaka
approved these changes
Aug 20, 2026
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addstr(), addnstr(), insstr() and insnstr() set the window rendition to
the caller's attr, write, then restore the previous rendition. Since
30dde1e the restore sits below an early return taken when the write
fails, so a failed write leaves the caller's attr on the window and
drops whatever the application had set with attrset().
Restore the rendition first and report the write error afterwards. A
wattrset() failure is still reported when the write itself succeeded.
(cherry picked from commit 83531fd)
Co-authored-by: Vyron Vasileiadis hi@fedonman.com
addstrno longer restores the window attributes when the write fails #155974