diff options
Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/weakref.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index 9aaa58a..dcc5bf3 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -61,6 +61,9 @@ instances, functions written in Python (but not in C), instance methods, sets, frozensets, file objects, :term:`generator`\s, type objects, sockets, arrays, deques, and regular expression pattern objects. +.. versionchanged:: 3.2 + Added support for thread.lock and threading.Lock. + Several built-in types such as :class:`list` and :class:`dict` do not directly support weak references but can add support through subclassing:: |