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| -rw-r--r-- | Doc/library/inspect.rst | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Doc/library/inspect.rst b/Doc/library/inspect.rst index 8a74cad..ed8d705 100644 --- a/Doc/library/inspect.rst +++ b/Doc/library/inspect.rst @@ -665,9 +665,6 @@ 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 @@ -702,6 +699,13 @@ function. Python. For example, in CPython, some built-in functions defined in C provide no metadata about their arguments. + .. impl-detail:: + + If the passed object has a :attr:`!__signature__` attribute, + we may use it to create the signature. + The exact semantics are an implementation detail and are subject to + unannounced changes. Consult the source code for current semantics. + .. class:: Signature(parameters=None, *, return_annotation=Signature.empty) |