diff options
-rw-r--r-- | Doc/library/weakref.rst | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index 7f3d267d74..8d8a0b5df2 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -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 instances, functions written in Python (but not in C), instance methods, sets, -frozensets, some :term:`file objects <file object>`, :term:`generator`\s, type -objects, sockets, arrays, deques, regular expression pattern objects, and code +frozensets, some :term:`file objects <file object>`, :term:`generators <generator>`, +type objects, sockets, arrays, deques, regular expression pattern objects, and code objects. .. 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 -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 -different across various Python implementations.). +.. impl-detail:: + + Other built-in types such as :class:`tuple` and :class:`int` do not support weak + references even when subclassed. Extension types can easily be made to support weak references; see :ref:`weakref-support`. |