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Thu Sep 3 00:19:46 CEST 2009 · http://mail.python.org/pipermail/python-dev/2009-September/091569.html

2009/9/2 Campbell Barton <ideasman42 at gmail.com>:
> For blender we have a number of types defined in the C/API like
> meshes, lamps, metaballs, nurbs etc that dont make sense with some of
> richcmp's operations.
> A problem I have is that in python 3.1 the Py_CmpToRich function is removed.
>
> Should we copy Py_CmpToRich into our source tree?
> Otherwise we have fairly long cmp functions that have Py_CmpToRich inline.
>
> For C extension writers what is the suggested method for comparing
> types where Py_LT, Py_GT Py_GE etc are not useful?

Return Py_NotImplemented when you get them.

-- 
Regards,
Benjamin

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[Python-Dev] Py_CmpToRich removed, alternatives for comparison?