[issue41543] contextlib.nullcontext doesn't work with async context managers

[Tom Gringauz]

Change by Tom Gringauz <tomgrin10 at gmail.com>:


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keywords: +patch
pull_requests: +20995
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21870

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41543>
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