Add MutableSet example.

be075b1c · Raymond Hettinger · d72c7b67 · be075b1c
Commit be075b1c authored Mar 20, 2009 by Raymond Hettinger
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Doc/library/collections.rst Doc/library/collections.rst +6 -1

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--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -132,7 +132,12 @@ Notes on using :class:`Set` and :class:`MutableSet` as a mixin:
   inherit from both :meth:`Set` and :meth:`Hashable`, then define
   ``__hash__ = Set._hash``.

-(For more about ABCs, see the :mod:`abc` module and :pep:`3119`.)
+.. seealso::
+
+   * `OrderedSet recipe <http://code.activestate.com/recipes/576694/>`_ for an
+     example built on :class:`MutableSet`.
+
+   * For more about ABCs, see the :mod:`abc` module and :pep:`3119`.


 :class:`Counter` objects