__init__.py 文件源码

def add_array_option(self, name, shortname, type, help, default=None, choices=None, required=False):
        """
        Define an array option (a dashed argument that may receive one
        or multiple values on the command line, separated with spaces).

        @param name: long name of the option (or None)
        @type name: str, None
        @param shortname: short (single character) name of the option (or None)
        @type shortname: str, None
        @param type: argument data type
        @type type: type (type factory callable)        
        @param help: help text
        @type help: str
        @param choices: list of allowed argument values
        @type choices: tuple
        @param required: make this option a named mandatory argument
        @type required: bool                   
        """
        help = self._format_help(help, default)      

        self._add(ArgHandler.Type.NAMED, name, shortname,
                  nargs=argparse.ZERO_OR_MORE, type=type, help=help, default=default,
                  choices=choices, required=required)