Method _print_message

Lib/argparse.py:2752–2758

(self, message, file=None)

        self._print_message(self.format_help(), file)

    def _print_message(self, message, file=None):
        if message:
            file = file or _sys.stderr
            try:
                file.write(message)
            except (AttributeError, OSError):
                pass

    # ===============
    # Exiting methods