def print_version(self):
        """
        Print the program version.
        """

        if not self._version:
            return self

        if not self._title:
            print((self._name, self._version) % '  %s %s')
            return self

        print('  %s (%s %s)' % (self._title, self._name, self._version))
        return self
dataset/ETHPy150Open lepture/terminal/terminal/command.py/Command.print_version/swapped operands of `%`