[Python-checkins] python/dist/src/Lib optparse.py,NONE,1.1

[gvanrossum@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib
In directory usw-pr-cvs1:/tmp/cvs-serv30642

Added Files:
	optparse.py 
Log Message:
Checking in Greg Ward's Optik, as optparse.py.  This is the most
recent version from Greg's CVS.  I've changed the module docstring,
added a copyright notice, and renamed OptikError to OptParseError.

Still to do are documentation and unit tests.


--- NEW FILE: optparse.py ---
"""optparse - a powerful, extensible, and easy-to-use option parser.

By Greg Ward <gward@python.net>

Originally distributed as Optik.

See http://optik.sourceforge.net/
"""

__copyright__ = """
Copyright (c) 2001-2002 Gregory P. Ward.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

[...1345 lines suppressed...]
    else:
        # Isolate all words with s as a prefix.
        possibilities = [word for word in wordmap.keys()
                         if word.startswith(s)]
        # No exact match, so there had better be just one possibility.
        if len(possibilities) == 1:
            return possibilities[0]
        elif not possibilities:
            raise BadOptionError("no such option: %s" % s)
        else:
            # More than one possible completion: ambiguous prefix.
            raise BadOptionError("ambiguous option: %s (%s?)"
                                 % (s, ", ".join(possibilities)))


# Some day, there might be many Option classes.  As of Optik 1.3, the
# preferred way to instantiate Options is indirectly, via make_option(),
# which will become a factory function when there are many Option
# classes.
make_option = Option