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gh-143535: Document dispatch behavior of singledispatchmethod #143592

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gh-143535: Document dispatch behavior of singledispatchmethod #143592

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gh-143535: Document dispatch behavior of singledispatchmethod
priyanshu2282-cyber Jan 9, 2026
ea2fda1
gh-143535: Move singledispatchmethod note outside example block
priyanshu2282-cyber Jan 9, 2026
119a4b1
Merge branch 'main' into doc-singledispatchmethod-dispatch
priyanshu2282-cyber Jan 9, 2026
2834c45
gh-143535: Clarify dispatch semantics of singledispatchmethod
priyanshu2282-cyber Jan 9, 2026
57e6d20
Update Doc/library/functools.rst
priyanshu2282-cyber Jan 12, 2026
44f3295
Indentation fixes
priyanshu2282-cyber Jan 12, 2026
e033b66
gh-143535: Fix indentation in singledispatchmethod docs
priyanshu2282-cyber Jan 13, 2026
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Used decorators
priyanshu2282-cyber Jan 13, 2026
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gh-143535: Move singledispatchmethod note outside example block
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priyanshu2282-cyber committed Jan 9, 2026
commit ea2fda1cdbde5d32d0c3f57f3b4a8c099853ee87
11 changes: 6 additions & 5 deletions Doc/library/functools.rst
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Expand Up @@ -679,11 +679,7 @@
decorator. When defining a method using ``@singledispatchmethod``, note
that the dispatch happens on the type of the first non-*self* or non-*cls*
argument::
.. note::
``singledispatchmethod`` dispatches the first argument during call
time irrespective of whether the method is bound or unbound, as a result,
``x.f(a) != C.f(x, a)``.The behavior is intentional and required to support correct dispatch for
``staticmethod`` and ``classmethod``.

class Negator:
@singledispatchmethod
def neg(self, arg):
Expand All @@ -696,6 +692,11 @@
@neg.register
def _(self, arg: bool):
return not arg
.. note::

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``singledispatchmethod`` dispatches the first argument during call
time irrespective of whether the method is bound or unbound, as a result,
``x.f(a) != C.f(x, a)``.The behavior is intentional and required to support correct dispatch for

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Block quote ends without a blank line; unexpected unindent. [docutils]
``staticmethod`` and ``classmethod``.

``@singledispatchmethod`` supports nesting with other decorators such as
:deco:`classmethod`. Note that to allow for
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