def DEFINE_list( # pylint: disable=invalid-name,redefined-builtin
name,
default,
help,
flag_values=_flagvalues.FLAGS,
**args):
"""Registers a flag whose value is a comma-separated list of strings.
The flag value is parsed with a CSV parser.
Args:
name: str, the flag name.
default: list|str|None, the default value of the flag.
help: str, the help message.
flag_values: FlagValues, the FlagValues instance with which the flag will be
registered. This should almost never need to be overridden.
**args: Dictionary with extra keyword args that are passed to the Flag
__init__.
Returns:
a handle to defined flag.
"""
parser = _argument_parser.ListParser()
serializer = _argument_parser.CsvListSerializer(',')
return DEFINE(parser, name, default, help, flag_values, serializer, **args)
def test_csv_serializer(self):
serializer = _argument_parser.CsvListSerializer('+')
self.assertEqual(serializer.serialize(['foo', 'bar']), 'foo+bar')
