[issue18275] Make isinstance() work with super type instances

[Brett Cannon]

Brett Cannon added the comment:

That solution looks right. Problem is that it would need to either go directly into isinstance() or type would need to grow an __instancecheck__ to deal with this case since you can't override isinstance from the instance end. That I'm not sure people are okay with.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18275>
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