New submission from Thomas Moreau <>:

The recent changes introduced by 
leaks some file descriptors (the Pipe open in _ThreadWakeup).
They should be properly closed at shutdown.

components: Library (Lib)
messages: 313656
nosy: tomMoral
priority: normal
pull_requests: 5845
severity: normal
status: open
title: LEaking files in concurrent.futures.process
type: behavior
versions: Python 3.7

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