[issue21149] logging._removeHandlerRef is not threadsafe during interpreter shutdown

[Gregory P. Smith]

Change by Gregory P. Smith <greg at krypto.org>:


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resolution:  -> fixed
stage: patch review -> commit review
status: open -> closed
type:  -> behavior

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue21149>
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