[issue27100] Attempting to use class with both __enter__ & __exit__ undefined yields __exit__ attribute error

[Roundup Robot]

Roundup Robot added the comment:

New changeset 749c5d6c4ba5 by Raymond Hettinger in branch '3.6':
Issue #27100:  Fix ref leak
https://hg.python.org/cpython/rev/749c5d6c4ba5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27100>
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