return parser, args, other

def _escape_split(text, sep):

    """

    Allows for escaping of the separator: e.g. arg='foo\, bar'

    It should be noted that the way bash et. al. do command line parsing, those

    single quotes are required. a shameless ripoff from fabric project.

    """

    escaped_sep = r'\%s' % sep

    if escaped_sep not in text:

        return text.split(sep)

    before, _, after = text.partition(escaped_sep)

    startlist = before.split(sep)  # a regular split is fine here

    unfinished = startlist[-1]

    startlist = startlist[:-1]

    # recurse because there may be more escaped separators

    endlist = _escape_split(after, sep)

    # part of the string sent in recursion is the rest of the escaped value.

    unfinished += sep + endlist[0]

    return startlist + [unfinished] + endlist[1:]  # put together all the parts

def _run(argv):

    parser, args, other = argparser(argv)

    if not len(sys.argv) > 1:

        print parser.print_help()

        sys.exit(0)

    # defaults that can be overwritten by arguments

    tmpl_stored_args = {

        'http_server': 'waitress',

        'lang': 'en',

        'database_engine': 'sqlite',

        'host': '127.0.0.1',

        'port': 5000,

        'error_aggregation_service': None,

    }

    if other:

        # parse arguments, we assume only first is correct

        kwargs = {}

        for el in _escape_split(other[0], ','):

            kv = _escape_split(el, '=')