[3.14] gh-132493: Remove __annotations__ usage in inspect._signature_is_functionlike (GH-133415)#133796
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…s_functionlike (pythonGH-133415) This check is potentially problematic because it could force evaluation of annotations unnecessarily. This doesn't trigger for builtin objects (functions, classes, or modules) with annotations, but it could trigger for third-party objects. The check was not particularly useful anyway, because it succeeds if ``__annotations__`` is a dict or None, so the only thing this did was guard against objects that have an ``__annotations__`` attribute that is of some other type. That doesn't seem particularly useful, so I just removed the check. (cherry picked from commit cb6596c) Co-authored-by: Jelle Zijlstra <[email protected]>
This was referenced May 10, 2025
JelleZijlstra approved these changes May 10, 2025
JelleZijlstra merged commit dc441ef into python:3.14 47 checks passed
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This check is potentially problematic because it could force evaluation of
annotations unnecessarily. This doesn't trigger for builtin objects (functions,
classes, or modules) with annotations, but it could trigger for third-party objects.
The check was not particularly useful anyway, because it succeeds if
__annotations__is a dict or None, so the only thing this did was guard against objects that have an
__annotations__attribute that is of some other type. That doesn't seem particularlyuseful, so I just removed the check.
(cherry picked from commit cb6596c)
Co-authored-by: Jelle Zijlstra [email protected]