[issue25782] CPython hangs on error __context__ set to the error itself

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

The patch LGTM (but I prefer reordering solution).

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stage: patch review -> commit review
type:  -> behavior
versions:  -Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25782>
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