datafs.py 文件源码

def _parse_args_and_kwargs(passed_args):

    args = []
    kwargs = {}

    has_kwargs = False

    while len(passed_args) > 0:

        arg = passed_args.pop(0)

        if arg[:2] == '--':
            has_kwargs = True

            if not len(passed_args) > 0:
                raise ValueError('Argument "{}" not recognized'.format(arg))

            kwargs[arg[2:]] = passed_args.pop(0)

        else:
            if has_kwargs:
                raise ValueError(
                    'Positional argument "{}" after keyword arguments'.format(
                        arg))

            args.append(arg)

    return args, kwargs