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Tue Feb 20 18:24:02 EST 2018 · https://mail.python.org/pipermail/python-dev/2018-February/152197.html

> On Feb 20, 2018, at 2:38 PM, Guido van Rossum <guido at python.org> wrote:
> 
> But then the class would also inherit a bunch of misfeatures from tuple (like being indexable and having a length). It would be nicer if it used __slots__ instead.

FWIW, George Sakkis made a tool like this about nine years ago.  https://code.activestate.com/recipes/576555-records  It would need to be modernized to include default arguments, types annotations and whatnot, but otherwise it has great performance and low API complexity.

> (Also, the problem with __slots__ is the same as the problem with inheriting from tuple, and it should just be solved right, somehow.)

Perhaps a new variant of __init_subclass__ would work.

Raymond

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[Python-Dev] Dataclasses, frozen and __post_init__