def controlService(self, serviceName, controlArg=None, env=None):
        logging.info("Attempting to %s service %s", controlArg, serviceName)
        binDir = os.path.join(ufora.rootPythonPath, 'ufora/scripts/init')
        exitCode = self.runCommandAndLogOutput(binDir, serviceName, controlArg, env=env)
        if exitCode != 0:
            logging.error("Failed to %s %s. Exit code: %s", controlArg, serviceName, exitCode)
            raise Exception((controlArg, serviceName, exitCode) % "Failed to %s %s. Exit code: %s")
        logging.info("Service %s successfully completed %s command", serviceName, controlArg)
dataset/ETHPy150Open ufora/ufora/ufora/test/MultiMachineTestRunner.py/MultiMachineTestRunner.controlService/swapped operands of `%`