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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def listDatasetParents(self, dataset=''):
 """ API to list A datasets parents in DBS. :param dataset: dataset (Required) :type dataset: str :returns: List of dictionaries containing the following keys (this_dataset, parent_dataset_id, parent_dataset) :rtype: list of dicts """

        try:
            return self.dbsDataset.listDatasetParents(dataset)
        except dbsException as de:
            dbsExceptionHandler(de.eCode, de.message, self.logger.exception, de.serverError)
        except Exception as ex:
            sError = "DBSReaderModel/listDatasetParents. %s\n. Exception trace: \n %s" \
                    % (ex, traceback.format_exc())
            dbsExceptionHandler('dbsException-server-error', dbsExceptionCode['dbsException-server-error'], self.logger.exception, sError)