[issue33188] dataclass MRO entry resolution for type variable metaclasses: TypeError

[Rick Teachey]

Rick Teachey <ricky at teachey.org> added the comment:

I'll also say: one of the biggest reasons I was excited to read the `dataclasses` PEP was because I thought "AWESOME! Now I can delete all of the stupid boilerplate __init__ and __repr__ methods for those `typing.Sequences`, `typing.Mapping`, etc etc subclasses!"

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33188>
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