Merged revisions 74524 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r74524 | gregory.p.smith | 2009-08-20 04:39:38 -0500 (Thu, 20 Aug 2009) | 2 lines

  Add weakref support to the thread.lock type.
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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 @@
 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::