def _check_settings(self):
        """Check we have all the required settings defined."""
        if not self.SFTP_HOST:
            msg = self.name % '%s storage requires DBBACKUP_SFTP_HOST to be defined in settings.'
            raise StorageError(msg)
dataset/ETHPy150Open django-dbbackup/django-dbbackup/dbbackup/storage/sftp_storage.py/Storage._check_settings/swapped operands of `%`