Is argparse.SUPPRESS needed for anything in def create_cli_parser?

[PawelLipski]

Maybe it at least affects error message in case of invalid CLI options?

Either put a comment explaining why it's needed, or remove if not.

[PawelLipski]

>>> import argparse
>>> parser = argparse.ArgumentParser(argument_default=argparse.SUPPRESS)
>>> parser.add_argument('--foo')
_StoreAction(option_strings=['--foo'], dest='foo', nargs=None, const=None, default='==SUPPRESS==', type=None, choices=None, required=False, help=None, metavar=None)
>>> parser.add_argument('bar', nargs='?')
_StoreAction(option_strings=[], dest='bar', nargs='?', const=None, default='==SUPPRESS==', type=None, choices=None, required=False, help=None, metavar=None)
>>> parser.parse_args(['--foo', '1', 'BAR'])
Namespace(foo='1', bar='BAR')
>>> parser.parse_args([])    ### HERE
Namespace()
>>> parser2 = argparse.ArgumentParser(argument_default=argparse.SUPPRESS)
>>> parser2 = argparse.ArgumentParser()
>>> parser2.add_argument('--foo')
_StoreAction(option_strings=['--foo'], dest='foo', nargs=None, const=None, default=None, type=None, choices=None, required=False, help=None, metavar=None)
>>> parser2.add_argument('bar', nargs='?')
_StoreAction(option_strings=[], dest='bar', nargs='?', const=None, default=None, type=None, choices=None, required=False, help=None, metavar=None)
>>> parser2.parse_args(['--foo', '1', 'BAR'])
Namespace(foo='1', bar='BAR')
>>> parser2.parse_args([])   ### vs HERE
Namespace(foo=None, bar=None)