Add documentation for the packaging module.
This updates the user guide to refer to Packaging instead of Distutils.
Some files still require an update.
diff --git a/Doc/library/packaging.fancy_getopt.rst b/Doc/library/packaging.fancy_getopt.rst
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+:mod:`packaging.fancy_getopt` --- Wrapper around the getopt module
+==================================================================
+
+.. module:: packaging.fancy_getopt
+ :synopsis: Additional getopt functionality.
+
+
+.. warning::
+ This module is deprecated and will be replaced with :mod:`optparse`.
+
+This module provides a wrapper around the standard :mod:`getopt` module that
+provides the following additional features:
+
+* short and long options are tied together
+
+* options have help strings, so :func:`fancy_getopt` could potentially create a
+ complete usage summary
+
+* options set attributes of a passed-in object
+
+* boolean options can have "negative aliases" --- e.g. if :option:`--quiet` is
+ the "negative alias" of :option:`--verbose`, then :option:`--quiet` on the
+ command line sets *verbose* to false.
+
+.. function:: fancy_getopt(options, negative_opt, object, args)
+
+ Wrapper function. *options* is a list of ``(long_option, short_option,
+ help_string)`` 3-tuples as described in the constructor for
+ :class:`FancyGetopt`. *negative_opt* should be a dictionary mapping option names
+ to option names, both the key and value should be in the *options* list.
+ *object* is an object which will be used to store values (see the :meth:`getopt`
+ method of the :class:`FancyGetopt` class). *args* is the argument list. Will use
+ ``sys.argv[1:]`` if you pass ``None`` as *args*.
+
+
+.. class:: FancyGetopt([option_table=None])
+
+ The option_table is a list of 3-tuples: ``(long_option, short_option,
+ help_string)``
+
+ If an option takes an argument, its *long_option* should have ``'='`` appended;
+ *short_option* should just be a single character, no ``':'`` in any case.
+ *short_option* should be ``None`` if a *long_option* doesn't have a
+ corresponding *short_option*. All option tuples must have long options.
+
+The :class:`FancyGetopt` class provides the following methods:
+
+
+.. method:: FancyGetopt.getopt([args=None, object=None])
+
+ Parse command-line options in args. Store as attributes on *object*.
+
+ If *args* is ``None`` or not supplied, uses ``sys.argv[1:]``. If *object* is
+ ``None`` or not supplied, creates a new :class:`OptionDummy` instance, stores
+ option values there, and returns a tuple ``(args, object)``. If *object* is
+ supplied, it is modified in place and :func:`getopt` just returns *args*; in
+ both cases, the returned *args* is a modified copy of the passed-in *args* list,
+ which is left untouched.
+
+ .. TODO and args returned are?
+
+
+.. method:: FancyGetopt.get_option_order()
+
+ Returns the list of ``(option, value)`` tuples processed by the previous run of
+ :meth:`getopt` Raises :exc:`RuntimeError` if :meth:`getopt` hasn't been called
+ yet.
+
+
+.. method:: FancyGetopt.generate_help([header=None])
+
+ Generate help text (a list of strings, one per suggested line of output) from
+ the option table for this :class:`FancyGetopt` object.
+
+ If supplied, prints the supplied *header* at the top of the help.