def _get_execution(self, execution_id):
        """ Returns Execution model

        If model is not found task will retry.
        """
        try:
            return Execution.objects.get(pk=execution_id)
        except Execution.DoesNotExist:
            logger.info(execution_id % 'execution %d not found... retry')
            raise self.retry(countdown=5)
dataset/ETHPy150Open gunnery/gunnery/gunnery/backend/tasks.py/ExecutionTask._get_execution/swapped operands of `%`