cmdparse is a command line parser that works with CVS style
commands.  Each command can have its own optparse settings.

Install it with the usual setuptools usage:

$ python setup.py install

Example usage:

import cmdparse

class EchoCommand(cmdparse.Command):
    def __init__(self):
        cmdparse.Command.__init__(self, "echo", summary="echo a string")

        self.add_option("-c", "--count", type="int",
                        default="1", help="number of times to echo")

    def run(self, options, args):
        for i in xrange(options.count):
            print " ".join(args)

parser = cmdparse.CommandParser()
parser.add_command(EchoCommand())

(command, options, args) = parser.parse_args()
command.run(options, args)