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gh-141831: Document behavior of functools.lru_cache with concurrent access (gh-141869)

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Satyam Kumar Verman 2025-11-24 09:36:09 -05:00 committed by GitHub
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Doc/library/functools.rst
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@ -57,6 +57,10 @@ The :mod:`functools` module defines the following functions:
another thread makes an additional call before the initial call has been
completed and cached.
Call-once behavior is not guaranteed because locks are not held during the
function call. Potentially another call with the same arguments could
occur while the first call is still running.
.. versionadded:: 3.9