Initial commit of the argparse library, based on argparse 1.1.

Docs still need some updating to make getopt and optparse match the wording promised in the PEP.
There are also probably a number of :class:ArgumentParser etc. links that could be added to the argparse documentation.

Doc/library/allos.rst

@@ -16,6 +16,7 @@ but they are available on most other systems as well.  Here's an overview:
    os.rst
    io.rst
    time.rst
+   argparse.rst
    optparse.rst
    getopt.rst
    logging.rst

Doc/library/getopt.rst

 
-:mod:`getopt` --- Parser for command line options
-=================================================
+:mod:`getopt` --- C-style parser for command line options
+=========================================================
 
 .. module:: getopt
    :synopsis: Portable parser for command line options; support both short and long option

Doc/library/optparse.rst

-:mod:`optparse` --- More powerful command line option parser
-============================================================
+:mod:`optparse` --- Parser for command line options
+===================================================
 
 .. module:: optparse
-   :synopsis: More convenient, flexible, and powerful command-line parsing library.
+   :synopsis: Command-line option parsing library.
 .. moduleauthor:: Greg Ward <gward@python.net>
 
 

Doc/tutorial/stdlib.rst

@@ -72,7 +72,7 @@ three`` at the command line::
 
 The :mod:`getopt` module processes *sys.argv* using the conventions of the Unix
 :func:`getopt` function.  More powerful and flexible command line processing is
-provided by the :mod:`optparse` module.
+provided by the :mod:`argparse` module.
 
 
 .. _tut-stderr:

Misc/NEWS

@@ -83,6 +83,8 @@ Library
 
 - Issue #6729: Added ctypes.c_ssize_t to represent ssize_t.
 
+- Issue #6247: The argparse module has been added to the standard library.
+
 Extension Modules
 -----------------