[issue28326] multiprocessing.Process depends on sys.stdout being open

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

In issue31804, we see that sys.stdout and sys.stderr can sometimes simply be None, so we must check for that too.

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nosy: +pitrou
versions:  -Python 3.5

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue28326>
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