[2.7] bpo-25872: fix KeyError on race in linecache.checkcache()#12061
Closed
cunkel wants to merge 3 commits intopython:2.7from
cunkel:fix-bpo-25872
Closed
[2.7] bpo-25872: fix KeyError on race in linecache.checkcache()#12061cunkel wants to merge 3 commits intopython:2.7from cunkel:fix-bpo-25872
cunkel wants to merge 3 commits intopython:2.7from
cunkel:fix-bpo-25872
Conversation
If two threads generating a traceback run checkcache() at the same time, they may both try to delete the same entries in the line cache, resulting in a KeyError in one. Use .pop(filename, None) instead of del, as it will not raise the KeyError. https://bugs.python.org/issue25872
Contributor
|
This looks fine to me. Please add a news entry. |
(Intended for squash merge.)
remilapeyre
approved these changes
Feb 28, 2019
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
7 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
If two threads generating a traceback run checkcache() at the same time,
they may both try to delete the same entries in the line cache,
resulting in a KeyError in one. Use .pop(filename, None) instead of
del, as it will not raise the KeyError.
https://bugs.python.org/issue25872
https://bugs.python.org/issue25872