Reproduced on 3.11, with a different error:

% ./python.exe prog.py
Traceback (most recent call last):
  File "/Users/iritkatriel/src/cpython-1/prog.py", line 5, in <module>
    args = parse.parse_args()
           ^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/argparse.py", line 1822, in parse_args
    args, argv = self.parse_known_args(args, namespace)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/argparse.py", line 1855, in parse_known_args
    namespace, args = self._parse_known_args(args, namespace)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/iritkatriel/src/cpython-1/Lib/argparse.py", line 2093, in _parse_known_args
    ', '.join(required_actions))
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: sequence item 0: expected str instance, tuple found