def set_option(self, option):
        if option not in self.OPTIONS:
            raise Exception('Invalid option specified: "%s". Expected one of (%s)'
                            % (option, ', '.join(self.OPTIONS.keys())))

        if self.options not in option:
            self.options[self.OPTIONS[option]] = option
dataset/ETHPy150Open sdispater/cleo/cleo/formatters/output_formatter_style.py/OutputFormatterStyle.set_option/swapped operands of `not in`