#! /usr/local/bin/python import sys, getopt, string def help_message(): print '''options.py -- uses getopt to recognize options Options: -h -- displays this help message -a -- expects an argument --file= -- expects an argument --view -- doesn't necessarily expect an argument --version -- displays Python version''' sys.exit(0) try: options, xarguments = getopt.getopt(sys.argv[1:], 'ha', ['file=', '--view', 'version']) except getopt.error: print 'Error: You tried to use an unknown option or the argument for an option that requires it was missing. Try `options.py -h\' for more information.' sys.exit(0) for a in options[:]: if a[0] == '-h': help_message() for a in options[:]: if a[0] == '-a' and a[1] != '': print a[0]+' = '+a[1] options.remove(a) break elif a[0] == '-a' and a[1] == '': print '-a expects an argument' sys.exit(0) for a in options[:]: if a[0] == '--file' and a[1] != '': print a[0]+' = '+a[1] options.remove(a) break elif a[0] == '--file' and a[1] == '': print '--file expects an argument' sys.exit(0) for a in options[:]: if a[0] == '--view' and a[1] != '': print a[0]+' = '+a[1] options.remove(a) break elif a[0] == '--view' and a[1] == '': print '--view doesn\'t necessarily expects an argument...' options.remove(a) sys.exit(0) for a in options[:]: if a[0] == '--version': print 'options version 0.0.001' sys.exit(0) for a in options[:]: if a[0] == '--python-version': print 'Python '+sys.version sys.exit(0)