A flag that can appear multiple time on the command-line.
The value of such a flag is a list that contains the individual values from all the appearances of that flag on the command-line.
See the doc for Flag for most behavior of this class. Only differences in behavior are described here:
The default value may be either a single value or an iterable of values. A single value is transformed into a single-item list of that value.
The value of the flag is always a list, even if the option was only supplied once, and even if the default value is a single value
__init__( *args, **kwargs )
Initialize self. See help(type(self)) for accurate signature.
__ge__( other, NotImplemented=NotImplemented )
Return a >= b. Computed by @total_ordering from (not a < b).
__gt__( other, NotImplemented=NotImplemented )
Return a > b. Computed by @total_ordering from (not a < b) and (a != b).
__le__( other, NotImplemented=NotImplemented )
Return a <= b. Computed by @total_ordering from (a < b) or (a == b).
See base class.
Parses one or more arguments with the installed parser.
arguments: a single argument or a list of arguments (typically a list of default values); a single argument is converted internally into a list containing one item.
Serializes the flag.