Hi. I would like to suggest to add functionality to argparse For example we can have one ArgumentParser instance, for (windows, linux), (community edition, pro edition) apps. It could give ability to show and be able to run only allowed commands based on version of os, app or some other logic. import argparse def some_callable(): if edition() == 'pro_edition': return True return False parser = argparse.ArgumentParser( prog="CustomProgramm", description="CustomProgramms custom description", epilog='Epilog of this', ) parser.add_argument('--full-function', target=some_callable) This --full-function argument will be available only if some_callable function is True, otherwise it will not be shown in command line arguments.