[issue25341] File mode wb+ appears as rb+

[Xiang Zhang]

Xiang Zhang added the comment:

I think Mark is right. Since wb+ and rb+ have different behaviours they
should be treat separately.

But this behaviour treating wb+ and rb+ as the same is well tested and
seems to intended to do so.

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nosy: +xiang.zhang

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25341>
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