diff options
Diffstat (limited to 'Doc/library/weakref.rst')
| -rw-r--r-- | Doc/library/weakref.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index a667479..d462f6e 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -69,9 +69,10 @@ 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 (those types implemented as a -:ctype:`PyVarObject`). +.. impl-detail:: + + Other built-in types such as :class:`tuple` and :class:`long` do not support + weak references even when subclassed. Extension types can easily be made to support weak references; see :ref:`weakref-support`. |