[issue43867] multiprocess: catch explicitly SystemExit in the Server class

[STINNER Victor]

Change by STINNER Victor <vstinner at python.org>:


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title: concurrent.futures: handle explicitly SystemExit in managers.Server -> multiprocess: catch explicitly SystemExit in the Server class

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43867>
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