Add advice on choosing between DictMixin and MutableMapping

7e33663e · Raymond Hettinger · d53f1c4d · 7e33663e
Commit 7e33663e authored Feb 08, 2008 by Raymond Hettinger
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Doc/library/userdict.rst Doc/library/userdict.rst +2 -0

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--- a/Doc/library/userdict.rst
+++ b/Doc/library/userdict.rst
@@ -68,6 +68,8 @@ provide the following attribute:
   Since the mixin has no knowledge of the subclass constructor, it does not define
   :meth:`__init__` or :meth:`copy`.

+   Starting with Python version 2.6, it is recommended to use
+   :class:`collections.MutableMapping` instead of :class:`DictMixin`.

 :mod:`UserList` --- Class wrapper for list objects
 ==================================================