def __call__()

in nubia/internal/typing/argparse.py [0:0]

• 11 lines of code
• 3 McCabe index (conditional complexity)

    def __call__(self, parser, namespace, values, option_string=None):
        help_message = parser.format_help()
        help_message_length = len(help_message.split("\n"))
        _, rows = shutil.get_terminal_size()
        fits_one_page = help_message_length <= rows
        if sys.stdout.isatty() and not fits_one_page:
            pager = os.environ.get("PAGER", "less")
            subprocess.run([pager], input=help_message.encode())
        else:  # fallback
            parser.print_help()
        parser.exit()