def getRecord(self, metadataPrefix, identifier):
        try:
            return self._data[int(identifier)]
        except IndexError:
            raise error.IdDoesNotExistError, identifier % "Id does not exist: %s"
dataset/ETHPy150Open infrae/pyoai/src/oaipmh/tests/fakeserver.py/FakeServerCommon.getRecord/swapped operands of `%`