[issue20318] subprocess.Popen can hang in threaded applications

[Andrew Lutomirski]

Andrew Lutomirski added the comment:

FWIW, sticking a mutex in Popen.__init__ (wrapping the whole thing) seems to work around this issue (for programs that aren't using multiprocessing or fork, for example).  This might be a good-enough fix and be safe enough to stick in the standard library.

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status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20318>
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