[issue24806] Inheriting from NoneType does not fail consistently

[Armin Rigo]

Armin Rigo added the comment:

To be clearer, this bug report is, more precisely, about subclassing built-in classes that are not meant to be subclassable.  This includes type(None) and bool.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24806>
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