[3.11] gh-104536: Improve multiprocessing.process._cleanup
logic (GH-104537)
#104737
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Fix a race condition in the internal
multiprocessing.process
cleanuplogic that could manifest as an unintended
AttributeError
when callingBaseProcess.close()
.(cherry picked from commit ef5d00a)
Co-authored-by: Luccccifer [email protected]
Co-authored-by: Oleg Iarygin [email protected]
Co-authored-by: Gregory P. Smith [email protected]