Python shell for having a singular script, via symlink, have multiple personalities easily.

multiplicity_act.py

#!/usr/bin/python

import sys
import os
from optparse import OptionParser


class cli_handlers(object):

    def __init__(self, argv):
        self.argv = argv
        self.parser = OptionParser()

    def process(self):
        pass


class t2_handler(cli_handlers):
    def __init__(self, argv):
        cli_handlers.__init__(self, argv)
        self.parser.add_option('--a', dest='a', help='a')
        self.parser.add_option('--b', dest='b', help='b')
        (self.options, self.args) = self.parser.parse_args(argv[1:])

    def process(self):
        print 't2_handler - a = %s, b = %s' % (self.options.a, self.options.b)


class t3_handler(cli_handlers):
    def __init__(self, argv):
        cli_handlers.__init__(self, argv)
        self.parser.add_option('--c', dest='c', help='c')
        self.parser.add_option('--d', dest='d', help='d')
        (self.options, self.args) = self.parser.parse_args(argv[1:])

    def process(self):
        print 't3_handler - c = %s, d = %s' % (self.options.c, self.options.d)


cli_lookup = {'t2': t2_handler,
              't3': t3_handler, }


def main():
    fn, ext = os.path.splitext(os.path.basename(sys.argv[0]))

    handler = cli_lookup.get(fn, None)

    if handler:
        h = handler(sys.argv)
        h.process()


if __name__ == '__main__':
    main()