[issue22831] Use "with" to avoid possible fd leaks

[STINNER Victor]

STINNER Victor added the comment:

fd_leaks.diff is impossible to review, even Rietveld gave up, it's too big :-p

Could you please your patch into smaller patches? Split by directory for example.

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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22831>
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