diff options
Diffstat (limited to 'Doc/library/weakref.rst')
| -rw-r--r-- | Doc/library/weakref.rst | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index 685d2079eb..2aa49e3d5c 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -72,10 +72,9 @@ support weak references but can add support through subclassing:: 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:`long` do not support - weak references even when subclassed. +Other built-in types such as :class:`tuple` and :class:`long` do not support +weak references even when subclassed (This is an implementation detail and may +be different across various Python implementations.). Extension types can easily be made to support weak references; see :ref:`weakref-support`. |