[issue18876] Problems with files opened in append mode with io module

[R. David Murray]

Changes by R. David Murray <rdmurray at bitdance.com>:


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nosy: +pitrou
versions: +Python 3.4 -Python 3.1, Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18876>
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