Control formatting of the argparse help argument list?

Question

import argparse
parser = argparse.ArgumentParser(prog=\'tool\')
args = [(\'-u\', \'--upf\', \'ref. upf\', dict(required=\'True\')),
        (\'-s\', \'--skew\', \'ref. s         


        

Answer 1

If you are providing a custom formatter_class to your ArgumentParser

parser = argparse.ArgumentParser(formatter_class=help_formatter)

and then use subparsers, the formatter will only apply to the top-level help message. In order to use the same (or some other) formatter for all subparsers, you need to provide formatter_class argument for each add_parser call:

subparsers = parser.add_subparsers(metavar="ACTION", dest="action")
child_parser = subparsers.add_parser(
    action_name, formatter_class=help_formatter
)