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Commit 7e33663e authored by Raymond Hettinger's avatar Raymond Hettinger
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Add advice on choosing between DictMixin and MutableMapping

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Doc/library/userdict.rst
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...@@ -68,6 +68,8 @@ provide the following attribute: ...@@ -68,6 +68,8 @@ provide the following attribute:
Since the mixin has no knowledge of the subclass constructor, it does not define Since the mixin has no knowledge of the subclass constructor, it does not define
:meth:`__init__` or :meth:`copy`. :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 :mod:`UserList` --- Class wrapper for list objects
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