parser.py 文件源码

def gen_parser(caller, commands, parser, subparsers):
    """
    Run setup() for all submodules of sub_commands
    :param caller: Module calling this module
    :type caller: string
    :param commands: Sub-module relative to caller with commands
    :type commands: string
    :param parser: Argparse object
    :type parser: argparse.ArgumentParser
    :param subparsers: Subparsers object
    :type subparsers: argparse._SubParsersAction
    """
    package = importlib.import_module('{}.{}'.format(caller, commands))
    for importer, modname, ispkg in \
            pkgutil.iter_modules(package.__path__,
                                 prefix='{}.{}.'.format(caller, commands)):
        if not ispkg:
            found_module = importlib.import_module('{}'.format(modname))
            found_module.setup(parser, subparsers)

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