parse.py

#!/usr/bin/env python

import sys


def parse_arglist(args):
    arglist = []
    for arg in args:
        if not arg.startswith('-'):
            arglist.append(arg)
            continue
        arglist.extend(arg.split('=', 1))
    return _arglist_as_dict(arglist)


def _arglist_as_dict(args):
    ret, expecting_value, last_key = {}, False, None
    for arg in args:
        if arg.startswith('-'):  # it's a flag!
            last_key = arg.lstrip('-')
            ret[last_key] = expecting_value = True  # flag presence is data
            continue
        if not expecting_value:
            continue
        ret[last_key], expecting_value = arg, False
        # otherwise it's a standalone value and we don't know what to do with it
    return ret


def main():
    print(parse_arglist(sys.argv[1:]))


if __name__ == '__main__':
    main()