[3.14] gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None (GH-138814) #139084
+21
−3
Conversation
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
…eProcess and DummyProcess to use None (pythonGH-138814) * pythongh-138813: Default `BaseProcess` `kwargs` to `None` (pythonGH-138814) Set `BaseProcess.__init__(..., kwargs=None)` and initialize `kwargs` with `dict(kwargs) if kwargs else {}`. This avoids a shared mutable default and matches threading.Thread behavior. Co-authored-by: Dmitrii Chuprov <[email protected]> * DummyProcess kwargs=None (which threading.Thread accepts properly) (cherry picked from commit 5a15e73) Co-authored-by: Denis Sergeev <[email protected]> Co-authored-by: Gregory P. Smith <[email protected]>
|
All commit authors signed the Contributor License Agreement. |
This was referenced Sep 17, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 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Outdated suggestions cannot be applied.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.
multiprocessing.dummy.DummyProcess.__init__#138813: DefaultBaseProcesskwargstoNone(gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None #138814)Set
BaseProcess.__init__(..., kwargs=None)and initializekwargswithdict(kwargs) if kwargs else {}. This avoids a shared mutable default andmatches threading.Thread behavior.
Co-authored-by: Dmitrii Chuprov [email protected]
(cherry picked from commit 5a15e73)
Co-authored-by: Denis Sergeev [email protected]
Co-authored-by: Gregory P. Smith [email protected]