Update docs for collections ABCs and for collections.UserDict.

2 files changed, 41 insertions, 59 deletions

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 0be8d07..d218a9b 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -32,25 +32,32 @@ ABC                                    Notes
 :class:`collections.Iterable`          Defines ``__iter__()``
 :class:`collections.Iterator`          Derived from :class:`Iterable` and in
                                        addition defines ``__next__()``
+:class:`collections.Sized`             Defines ``__len__()``
 :class:`collections.Mapping`           Derived from :class:`Container`,
                                        :class:`Iterable`,
                                        and :class:`Sized`, and in addition
                                        defines ``__getitem__()``, ``get()``,
                                        ``__contains__()``, ``__len__()``,
+                                       ``__eq__()``, ``__ne__()``,
                                        ``__iter__()``, ``keys()``,
                                        ``items()``, and ``values()``
 :class:`collections.MutableMapping`    Derived from :class:`Mapping`
+:class:`collections.Sequence`          Derived from :class:`Container`,
+                                       :class:`Iterable`, and :class:`Sized`,
+                                       and in addition defines
+                                       ``__getitem__()`
 :class:`collections.MutableSequence`   Derived from :class:`Sequence`
+:class:`collections.Set`               Derived from :class:`Container`, :class:`Iterable`, :class:`Sized`.
+                                       add in addition defines
+				       ``__le__()``, ``__lt__()``, ``__eq__()``,
+                                       ``__and__()``, ``__or__()``, ``__sub__()``,
+                                       ``__xor__()``, and ``isdisjoint()``,
 :class:`collections.MutableSet`        Derived from :class:`Set` and in
                                        addition defines ``add()``,
                                        ``clear()``, ``discard()``, ``pop()``,
-                                       and ``toggle()``
-:class:`collections.Sequence`          Derived from :class:`Container`,
-                                       :class:`Iterable`, and :class:`Sized`,
-                                       and in addition defines
-                                       ``__getitem__()``
-:class:`collections.Set`               Derived from :class:`Container`, :class:`Iterable`, and :class:`Sized`
-:class:`collections.Sized`             Defines ``__len__()``
+                                       ``remove()``, ``__ior__()``, ``__iand__()``,
+                                       ``__ixor__()``, and ``__isub__()``
+
 =====================================  ========================================
 
 .. XXX Have not included them all and the notes are incomplete
@@ -577,3 +584,30 @@ customize a prototype instance::
 
 .. [#] For information on the double-star-operator see
    :ref:`tut-unpacking-arguments` and :ref:`calls`.
+
+
+
+:class:`UserDict` objects
+----------------------
+
+The class, :class:`UserDict` acts as a wrapper around dictionary objects.  
+The need for this class has been partially supplanted by the ability to 
+subclass directly from :class:`dict`; however, this class can be easier
+to work with because the underlying dictionary is accessible as an
+attribute.
+
+.. class:: UserDict([initialdata])
+
+   Class that simulates a dictionary.  The instance's contents are kept in a
+   regular dictionary, which is accessible via the :attr:`data` attribute of
+   :class:`UserDict` instances.  If *initialdata* is provided, :attr:`data` is
+   initialized with its contents; note that a reference to *initialdata* will not
+   be kept, allowing it be used for other purposes.
+
+In addition to supporting the methods and operations of mappings, 
+:class:`UserDict` and :class:`IterableUserDict` instances
+provide the following attribute:
+
+.. attribute:: UserDict.data
+
+   A real dictionary used to store the contents of the :class:`UserDict` class.
diff --git a/Doc/library/userdict.rst b/Doc/library/userdict.rst
index 820a743..1475197 100644
--- a/Doc/library/userdict.rst
+++ b/Doc/library/userdict.rst
@@ -1,56 +1,4 @@
 
-:mod:`UserDict` --- Class wrapper for dictionary objects
-========================================================
-
-.. module:: UserDict
-   :synopsis: Class wrapper for dictionary objects.
-
-
-The module defines a mixin,  :class:`DictMixin`, defining all dictionary methods
-for classes that already have a minimum mapping interface.  This greatly
-simplifies writing classes that need to be substitutable for dictionaries (such
-as the shelve module).
-
-This also module defines a class, :class:`UserDict`, that acts as a wrapper
-around dictionary objects.  The need for this class has been largely supplanted
-by the ability to subclass directly from :class:`dict` (a feature that became
-available starting with Python version 2.2).  Prior to the introduction of
-:class:`dict`, the :class:`UserDict` class was used to create dictionary-like
-sub-classes that obtained new behaviors by overriding existing methods or adding
-new ones.
-
-The :mod:`UserDict` module defines the :class:`UserDict` class and
-:class:`DictMixin`:
-
-
-.. class:: UserDict([initialdata])
-
-   Class that simulates a dictionary.  The instance's contents are kept in a
-   regular dictionary, which is accessible via the :attr:`data` attribute of
-   :class:`UserDict` instances.  If *initialdata* is provided, :attr:`data` is
-   initialized with its contents; note that a reference to *initialdata* will not
-   be kept, allowing it be used for other purposes.
-
-   .. note::
-
-      For backward compatibility, instances of :class:`UserDict` are not
-      iterable.
-
-
-.. class:: IterableUserDict([initialdata])
-
-   Subclass of :class:`UserDict` that supports direct iteration (e.g.  ``for key in
-   myDict``).
-
-In addition to supporting the methods and operations of mappings (see section
-:ref:`typesmapping`), :class:`UserDict` and :class:`IterableUserDict` instances
-provide the following attribute:
-
-
-.. attribute:: IterableUserDict.data
-
-   A real dictionary used to store the contents of the :class:`UserDict` class.
-
 
 :mod:`UserList` --- Class wrapper for list objects
 ==================================================