[issue12494] subprocess: check_output() doesn't close pipes on error

[Roundup Robot]

Roundup Robot <devnull at psf.upfronthosting.co.za> added the comment:

New changeset 86b7f14485c9 by Victor Stinner in branch 'default':
Issue #12494: Close pipes and kill process on error in subprocess functions
http://hg.python.org/cpython/rev/86b7f14485c9

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nosy: +python-dev

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