[issue18712] Pure Python operator.index doesn't match the C version.

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Here is a patch. Now the code of operator.index() becomes even more complicated. Perhaps you want suggest other wording for documentation?

Some code in stdlib (_pyio.py, bz2.py, connection.py) uses a.__index__() instead of type(a).__index__(a) (with replacing AttributeError to TypeError). Is it worth to change?

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keywords: +patch
stage:  -> patch review
Added file: http://bugs.python.org/file31273/operator_index.patch

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