def range_recommend_items(self,
                              dataset,
                              user_start,
                              user_end,
                              max_items=10,
                              return_scores=True,
                              item_features=None):
        return [self.recommend_items(dataset,u,max_items,return_scores) for u in xrange(user_start,user_end)]
Called when a channel is unsubscribed from.
dataset/ETHPy150Open Mendeley/mrec/mrec/base_recommender.py/BaseRecommender.range_recommend_items--crossover with--dataset/ETHPy150Open deldotdr/txRedis/txredis/client.py/RedisSubscriber.channelUnsubscribed