Argparse subcommand order in help output

Question

Using Python's argparse module, is there a way to order sub-commands created through the use of subparsers in the help output?

looks like duplicate of : http://stackoverflow.com/questions/12268602/sort-argparse-help-alphabetically — Jakub Czaplicki, Mar 19 '13 at 12:54
The question you linked to is about the order of arguments. I need to sort the sub-commands. — jd., Mar 19 '13 at 13:20

score 2 · Accepted Answer · answered Mar 19 '13 at 16:48

I actually found a way using argparse.HelpFormatter.

class CustomHelpFormatter(argparse.HelpFormatter):
    def _iter_indented_subactions(self, action):
        try:
            get_subactions = action._get_subactions
        except AttributeError:
            pass
        else:
            self._indent()
            if isinstance(action, argparse._SubParsersAction):
                for subaction in sorted(get_subactions(), key=lambda x: x.dest):
                    yield subaction
            else:
                for subaction in get_subactions():
                    yield subaction
            self._dedent()

Argparse subcommand order in help output

1 Answers1