[issue21291] subprocess Popen objects are not thread safe w.r.t. wait() and returncode being set

[Roundup Robot]

Roundup Robot added the comment:

New changeset 5d745d97b7da by Gregory P. Smith in branch '3.4':
subprocess's Popen.wait() is now thread safe so that multiple threads
http://hg.python.org/cpython/rev/5d745d97b7da

New changeset df45d0336dad by Gregory P. Smith in branch 'default':
subprocess's Popen.wait() is now thread safe so that multiple threads
http://hg.python.org/cpython/rev/df45d0336dad

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nosy: +python-dev

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<http://bugs.python.org/issue21291>
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