New submission from Nazime Koussaila Lakehal <nazime.lkh@gmail.com>: The parameter help in the method add_parser of _SubParsersAction (that we obtain with ArgumentParser.add_subparsers()) Is not documented. In the documentation we can find: The add_subparsers() method is normally called with no arguments and returns a special action object. This object has a single method, add_parser(), which takes a command name and any ArgumentParser constructor arguments, and returns an ArgumentParser object that can be modified as usual. I found the parameter by accident and then I checked in the source code, it's unfortunate because the help parameter give really nice output when having sub commands. the parameter 'aliases' is also not documented. ---------- assignee: docs@python components: Documentation messages: 363932 nosy: Nazime Koussaila Lakehal, docs@python priority: normal severity: normal status: open title: argparse: help parameter not documented in add_subparsers().add_parser type: enhancement versions: Python 2.7, Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue39935> _______________________________________