[issue27122] Hang with contextlib.ExitStack and subprocess.Popen (regression)

[STINNER Victor]

STINNER Victor added the comment:

Simplified script to reproduce the bug.

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nosy: +haypo
Added file: http://bugs.python.org/file42999/hang_bug2.py

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27122>
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