[issue13623] Bytes performance regression in python3.3 vs python3.2

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

> (b"A"*1000).find(b"A")    : -70%

This one is a performance regression introduced by #12170. Attached patch checks object type before trying a conversion to size_t instead of catching an exception.

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keywords: +patch
Added file: http://bugs.python.org/file24010/bytes_find.patch

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