Irit Katriel <iritkatr...@yahoo.com> added the comment:
This is fixed now: Python 3.10.0a2+ (heads/bpo-42184:f3cb814315, Nov 7 2020, 00:31:51) [MSC v.1916 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import argparse >>> parser = argparse.ArgumentParser() >>> parser.add_argument('foo', nargs='1') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\User\src\cpython\lib\argparse.py", line 1430, in add_argument self._get_formatter()._format_args(action, None) File "C:\Users\User\src\cpython\lib\argparse.py", line 611, in _format_args raise ValueError("invalid nargs value") from None ValueError: invalid nargs value ---------- nosy: +iritkatriel resolution: -> fixed stage: needs patch -> resolved status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue9849> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com