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Description
There are various places in the stdlib where we access the .__annotations__ attribute. Under PEP-649 / PEP-749, this now forces evaluation of lazy annotations. We should avoid evaluating annotations where it is not necessary.
For example, currently typing.Protocol evaluates its annotations at protocol creation time.
Linked PRs
- gh-132493: Support deferred annotations in Protocols #132494
- gh-132493: lazy evaluation of annotations in
typing._proto_hook#132534 - gh-132493: Avoid eager import of annotationlib in typing (again) #132596
- gh-132493: Avoid eager evaluation of annotations in
@reprlib.recursive_repr()#133411 - gh-132493: Remove __annotations__ usage in inspect._signature_is_functionlike #133415
- [ 5931 3.14] gh-132493: Remove __annotations__ usage in inspect._signature_is_functionlike (GH-133415) #133796