gh-141196: Fix threading.Semaphore documentation inconsistency #141244
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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. The release() method documentation was ambiguous about behavior when n > 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 waiting The fix aligns documentation with actual implementation behavior in Lib/threading.py where release(n) calls Condition.notify(n).
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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/