[issue16991] Add OrderedDict written in C

[Stefan Krah]

Stefan Krah added the comment:

crash-2.py is due to the fact that _PyDict_Pop() deletes a reference
to 'key' in _odict_popkey().

The INCREF(key) in popitem should take place before calling _odict_popkey().


Again, I don't see the point of INCREF/DECREF *inside* of _odict_popkey().

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16991>
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