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Update weakref.rst (GH-14098)

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Géry Ogam 2019-06-15 13:33:23 +02:00 • committed by Miss Islington (bot)
parent 0237265e82
commit f475729a71
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Doc/library/weakref.rst
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@ -65,8 +65,8 @@ exposed by the :mod:`weakref` module for the benefit of advanced uses.
Not all objects can be weakly referenced; those objects which can include class Not all objects can be weakly referenced; those objects which can include class
instances, functions written in Python (but not in C), instance methods, sets, instances, functions written in Python (but not in C), instance methods, sets,
frozensets, some :term:`file objects <file object>`, :term:`generator`\s, type frozensets, some :term:`file objects <file object>`, :term:`generators <generator>`,
objects, sockets, arrays, deques, regular expression pattern objects, and code type objects, sockets, arrays, deques, regular expression pattern objects, and code
objects. objects.
.. versionchanged:: 3.2 .. versionchanged:: 3.2
@ -80,9 +80,10 @@ support weak references but can add support through subclassing::
obj = Dict(red=1, green=2, blue=3) # this object is weak referenceable obj = Dict(red=1, green=2, blue=3) # this object is weak referenceable
.. impl-detail::
Other built-in types such as :class:`tuple` and :class:`int` do not support weak Other built-in types such as :class:`tuple` and :class:`int` do not support weak
references even when subclassed (This is an implementation detail and may be references even when subclassed.
different across various Python implementations.).
Extension types can easily be made to support weak references; see Extension types can easily be made to support weak references; see
:ref:`weakref-support`. :ref:`weakref-support`.