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

[Yury Selivanov]

Yury Selivanov added the comment:

> issue27122_broken_cm.py also shows why I think "make it work" is the right answer here [..]

But fixing this issue by reordering the exception chain will only mask bugs that just better to be fixed.  And sometimes, this will cause weird exceptions chains, that will make *some* people spend a lot of time debugging/googling to understand what's going on.

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