argparse subparser monolithic help output

Question

My argparse has only 3 flags (store_true) on the top level, everything else is handled through subparsers. When I run myprog.py --help, the output shows a list

Answer 1

I was also able to print a short help for commands using _choices_actions.

def print_help(parser):
  print(parser.description)
  print('\ncommands:\n')

  # retrieve subparsers from parser
  subparsers_actions = [
      action for action in parser._actions 
      if isinstance(action, argparse._SubParsersAction)]
  # there will probably only be one subparser_action,
  # but better save than sorry
  for subparsers_action in subparsers_actions:
      # get all subparsers and print help
      for choice in subparsers_action._choices_actions:
          print('    {:<19} {}'.format(choice.dest, choice.help))