[issue13322] buffered read() and write() does not raise BlockingIOError

[Antoine Pitrou]

Changes by Antoine Pitrou <pitrou at free.fr>:


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components: +IO, Library (Lib)
nosy: +pitrou
versions:  -Python 2.6, Python 3.1, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13322>
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