Uh oh!
There was an error while loading.Please reload this page.
- Notifications
You must be signed in to change notification settings - Fork33.3k
gh-141196: Fix threading.Semaphore documentation inconsistency#141244
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to ourterms of service andprivacy statement. We’ll occasionally send you account related emails.
Already on GitHub?Sign in to your account
Open
mohsinm-dev wants to merge1 commit intopython:mainChoose a base branch frommohsinm-dev:fix-gh-141196-semaphore-docs
base:main
Could not load branches
Branch not found:{{ refName }}
Loading
Could not load tags
Nothing to show
Loading
Are you sure you want to change the base?
Some commits from the old base branch may be removed from the timeline, and old review comments may become outdated.
Uh oh!
There was an error while loading.Please reload this page.
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
The acquire() method documentation stated 'Exactly one thread will be awokenby each call to release()' which became incorrect when the n parameter wasadded to release() in Python 3.9.The release() method documentation was ambiguous about behavior whenn > waiting_threads.Changes:- acquire(): Updated to reflect that release(n) wakes min(j,n) threads where j = waiting threads- release(): Clarified that it wakes 'up to n' threads, or all available if fewer than n are waitingThe fix aligns documentation with actual implementation behavior inLib/threading.py where release(n) calls Condition.notify(n).
372b843 to7ec656eCompareSign up for freeto join this conversation on GitHub. Already have an account?Sign in to comment
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.
Uh oh!
There was an error while loading.Please reload this page.
Fixes issue#141196 by correcting inconsistent documentation in threading.Semaphore.
The acquire() method documentation stated 'Exactly one thread will be awoken by each call to release()' which became incorrect when the n parameter was added to release() in Python 3.9.
Updated acquire() docs to reflect that release(n) wakes min(j,n) threads where j = waiting threads, and clarified release() docs to specify 'up to n threads' are awakened.
The fix aligns documentation with actual behavior: Semaphore.release(n) calls Condition.notify(n), which wakes exactly min(n, waiting_threads) threads.
Documentation-only change, no code modifications required.
📚 Documentation preview 📚:https://cpython-previews--141244.org.readthedocs.build/