[issue8958] 2.7rc1 tarfile.py: `bltn_open(targetpath, "wb")` -> IOError: Is a directory

[STINNER Victor]

Changes by STINNER Victor <victor.stinner at haypocalc.com>:


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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8958>
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