def get(self): # Flush old JustEat chickenplaces ten_days_ago = datetime.date.today() - datetime.timedelta(days=10) cursor = None more = True keys = [] while more: results, cursor, more = ChickenPlace.query(namespace="JustEat").filter(ChickenPlace.created < ten_days_ago) \ .fetch_page(150, keys_only=True, start_cursor=cursor) keys.extend(results) logging.info("Deleting %s old ChickenPlaces"%len(keys)) ndb.delete_multi(keys) logging.info("Deleted!")