[issue44353] PEP 604 NewType

[Dominic Davis-Foster]

Dominic Davis-Foster <dominic at davis-foster.co.uk> added the comment:

It is possible to implement NewType to return a class rather than a function as it does currently. However, the class version uses substantially more memory (1072 bytes vs 144 bytes with sys.getsizeof) and NewType is supposed to have almost no runtime overhead.

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nosy: +domdfcoding

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