argparse._AppendAction Class Reference

Inheritance diagram for argparse._AppendAction:

Public Member Functions
def	__call__ (self, parser, namespace, values, option_string=None)
def	__init__ (self, option_strings, dest, nargs=None, const =None, default=None, type=None, choices=None, required=False, help=None, metavar=None)
Public Member Functions inherited from argparse.Action
def	__call__ (self, parser, namespace, values, option_string=None)
def	__init__ (self, option_strings, dest, nargs=None, const =None, default=None, type=None, choices=None, required=False, help=None, metavar=None)
Public Member Functions inherited from argparse._AttributeHolder
def	__repr__ (self)

Additional Inherited Members
Public Attributes inherited from argparse.Action
	choices
	const
	default
	dest
	help
	metavar
	nargs
	option_strings
	required
	type

Detailed Description

Definition at line 906 of file argparse.py.

Constructor & Destructor Documentation

def argparse._AppendAction.__init__	(		self,
			option_strings,
			dest,
			nargs = None,
			const = None,
			default = None,
			type = None,
			choices = None,
			required = False,
			help = None,
			metavar = None
	)

Definition at line 918 of file argparse.py.

                 metavar=None):
        if nargs == 0:
            raise ValueError('nargs for append actions must be > 0; if arg '
                             'strings are not supplying the value to append, '
                             'the append const action may be more appropriate')
        if const is not None and nargs != OPTIONAL:
            raise ValueError('nargs must be %r to supply const' % OPTIONAL)
        super(_AppendAction, self).__init__(
            option_strings=option_strings,
            dest=dest,
            nargs=nargs,
            const=const,
            default=default,
            type=type,
            choices=choices,
            required=required,
            help=help,
            metavar=metavar)

Member Function Documentation

def argparse._AppendAction.__call__	(		self,
			parser,
			namespace,
			values,
			option_string = None
	)

Definition at line 937 of file argparse.py.

References argparse._ensure_value(), argparse.Action.dest, and python.rootplot.argparse.Action.dest.

    def __call__(self, parser, namespace, values, option_string=None):
        items = _copy.copy(_ensure_value(namespace, self.dest, []))
        items.append(values)
        setattr(namespace, self.dest, items)