[docs] [issue17268] Context managers written as C types no longer work in Python 2.7

[Christian Heimes]

Christian Heimes added the comment:

The change should also be documented here, http://docs.python.org/2.7/whatsnew/2.7.html#porting-to-python-2-7

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assignee:  -> docs at python
components: +Documentation
nosy: +christian.heimes, docs at python
stage:  -> needs patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17268>
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