[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

[Emanuel Barry]

Emanuel Barry added the comment:

New patch with Berker's comments. I'm really not used to Sphinx markup so thanks for that!

> Is there any person who really thinks that their own patch is *not* ready for commit review? :)

Partial patches aren't that uncommon in some projects. I also sometimes don't trust that I got everything right (especially if it's in a very large codebase like CPython), and having a few more pair of eyes taking a look at it helps.

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Added file: http://bugs.python.org/file43062/type_one_argument_4.patch

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<http://bugs.python.org/issue27157>
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