[issue27158] `isinstance` function does not handle types that are their own type

[ppperry]

Changes by ppperry <mapreader at olum.org>:


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title: `isnstance` function does not handle types that are their own type -> `isinstance` function does not handle types that are their own type

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27158>
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