[issue7624] isinstance(... , collections.Callable) fails with oldstyle class i nstances

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

"subtype == _InstanceType" can probably be replaced with "subtype is _InstanceType". Otherwise, the patch looks good to me.

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nosy: +benjamin.peterson

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue7624>
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