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gh-106310 - document the __signature__ attribute #106311

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Oct 20, 2023
Merged

gh-106310 - document the __signature__ attribute #106311

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a56180f
Document the __signature__ attribute
Gouvernathor Jul 1, 2023
adc5897
Merge branch 'main' into patch-6
AlexWaygood Oct 11, 2023
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5 changes: 5 additions & 0 deletions Doc/library/inspect.rst
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Expand Up @@ -640,6 +640,9 @@ function.
Accepts a wide range of Python callables, from plain functions and classes to
:func:`functools.partial` objects.

If the passed object has a ``__signature__`` attribute, this function
returns it without further computations.

For objects defined in modules using stringized annotations
(``from __future__ import annotations``), :func:`signature` will
attempt to automatically un-stringize the annotations using
Expand Down Expand Up @@ -763,6 +766,8 @@ function.
sig = MySignature.from_callable(min)
assert isinstance(sig, MySignature)

Its behavior is otherwise identical to that of :func:`signature`.

.. versionadded:: 3.5

.. versionadded:: 3.10
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