[issue36772] Let lru_cache be used as a decorator with no arguments

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

I do not like mixing decorators and decorator fabrics. But this can of worms has already been open by dataclasses. The question is whether we want to extend this design to the rest of the stdlib. lru_cache() resisted this change for a long time.

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nosy: +gvanrossum

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<https://bugs.python.org/issue36772>
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