document NotImplemented

f444f94e · Benjamin Peterson · dedb502f · f444f94e
Commit f444f94e authored Jul 30, 2011 by Benjamin Peterson
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Doc/library/stdtypes.rst Doc/library/stdtypes.rst +9 -0

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--- a/Doc/library/stdtypes.rst
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@@ -2932,6 +2932,15 @@ supports no special operations.  There is exactly one ellipsis object, named

 It is written as ``Ellipsis``.

+The NotImplemented Object
+-------------------------
+
+This object is returned from comparisons and binary operations when they are
+asked to operate on types they don't support. See :ref:`comparisons` for more
+information.
+
+It is written as ``NotImplemented``.
+

 Boolean Values
 --------------