[issue5251] contextlib.nested inconsistent with, well, nested with statements due exceptions raised in __enter__

[Nick Coghlan]

Nick Coghlan <ncoghlan at gmail.com> added the comment:

Removed first draft of patch - it was fundamentally flawed (it didn't
clean up the stack properly when the statement body was skipped)

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5251>
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