[issue20517] Support errors with two filenames for errno exceptions

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

I think it is worth to mention this in Doc/whatsnew/3.4.rst, as this is a little incompatible change.

Python 3.3:

>>> x = OSError(2, 'No such file or directory', 'foo', 0, 'bar')
>>> x.args
(2, 'No such file or directory', 'foo', 0, 'bar')

Python 3.4:

>>> x = OSError(2, 'No such file or directory', 'foo', 0, 'bar')
>>> x.args
(2, 'No such file or directory')

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<http://bugs.python.org/issue20517>
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