Add missing ABCs to list.

Doc/library/collections.rst

@@ -46,24 +46,15 @@ ABCs - abstract base classes
 
 The collections module offers the following ABCs:
 
-=========================  ====================  ======================  ====================================================
+=========================  =====================  ======================  ====================================================
 ABC                        Inherits               Abstract Methods        Mixin Methods
-=========================  ====================  ======================  ====================================================
+=========================  =====================  ======================  ====================================================
 :class:`Container`                                ``__contains__``
 :class:`Hashable`                                 ``__hash__``
 :class:`Iterable`                                 ``__iter__``
 :class:`Iterator`          :class:`Iterable`      ``__next__``            ``__iter__``
 :class:`Sized`          			  ``__len__``
-
-:class:`Mapping`           :class:`Sized`,       ``__getitem__``,        ``__contains__``, ``keys``, ``items``, ``values``,
-                           :class:`Iterable`,    ``__len__``. and        ``get``, ``__eq__``, and ``__ne__``
-                           :class:`Container`    ``__iter__``
-
-:class:`MutableMapping`    :class:`Mapping`      ``__getitem__``         Inherited Mapping methods and
-                                                 ``__setitem__``,        ``pop``, ``popitem``, ``clear``, ``update``,
-                                                 ``__delitem__``,        and ``setdefault``
-						 ``__iter__``, and
-                                                 ``__len__``
+:class:`Callable`                                 ``__call__``
                                                   
 :class:`Sequence`          :class:`Sized`,        ``__getitem__``         ``__contains__``. ``__iter__``, ``__reversed__``.
                            :class:`Iterable`,     and ``__len__``         ``index``, and ``count``
@@ -81,7 +72,24 @@ ABC                        Inherits              Abstract Methods        Mixin M
 :class:`MutableSet`        :class:`Set`           ``add`` and             Inherited Set methods and
                                                   ``discard``             ``clear``, ``pop``, ``remove``, ``__ior__``,
                                                                           ``__iand__``, ``__ixor__``, and ``__isub__``
-=========================  ====================  ======================  ====================================================
+                                                  
+:class:`Mapping`           :class:`Sized`,        ``__getitem__``,        ``__contains__``, ``keys``, ``items``, ``values``,
+                           :class:`Iterable`,     ``__len__``. and        ``get``, ``__eq__``, and ``__ne__``
+                           :class:`Container`     ``__iter__``
+                                                  
+:class:`MutableMapping`    :class:`Mapping`       ``__getitem__``         Inherited Mapping methods and
+                                                  ``__setitem__``,        ``pop``, ``popitem``, ``clear``, ``update``,
+                                                  ``__delitem__``,        and ``setdefault``
+						  ``__iter__``, and
+                                                  ``__len__``
+                                                  
+:class:`MappingView`       :class:`Sized`                                 ``__len__``
+:class:`KeysView`          :class:`MappingView`,                          ``__contains__``,
+                           :class:`Set`                                   ``__iter__``
+:class:`ItemsView`         :class:`MappingView`,                          ``__contains__``,
+                           :class:`Set`                                   ``__iter__``
+:class:`ValuesView`        :class:`MappingView`                           ``__contains__``, ``__iter__``
+=========================  =====================  ======================  ====================================================
 
 These ABCs allow us to ask classes or instances if they provide
 particular functionality, for example::