[3.15] gh-83274: Don't crash when a Tcl interpreter is deallocated in the wrong thread (GH-152323)#153271
Merged
serhiy-storchaka merged 1 commit intoJul 7, 2026
Conversation
…ted in the wrong thread (pythonGH-152323) Deallocating the interpreter from a thread other than the one it was created in ran Tcl_DeleteInterp() there, which makes Tcl abort the process ("Tcl_AsyncDelete: async handler deleted by the wrong thread"). Tkapp_Dealloc() now leaks the interpreter in that case and reports a RuntimeWarning instead. (cherry picked from commit 46d1809) Co-authored-by: E. Paine <63801254+E-Paine@users.noreply.github.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This was referenced Jul 7, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Backport of #152323 to 3.15.
(cherry picked from commit 46d1809)