rank is which place the value ranked by score in the zset.
zadd KEY SCORE MEMBER # add a value to a zset zincrby KEY SCORE MEMBER # increment the member's score NOTE redis-py implements wrongly zrem KEY MEMBER... # remove a value from zset zremrangebyrank KEY START STOP # removes all values in the set within the give index zremrangebyscore KEY MIN MAX # removes all values in the set within the given scores
this is zismember command, just use zscore KEY MEMBER is None to check
zcard KEY # get the number of elements in a zset zcount KEY MIN MAX # count the members in a sorted set with scores within the given scores zrank KEY MEMBER # get the index of member in zset zrevrank KEY MEMBER # the reverse index of member zscore KEY MEMBER # get the score of member in zset
zrange KEY START END # a range of members by index zrevrange KEY START END # a range of memvers by index, sorted from high to low zrangebyscore KEY MIN MAX # a range of members within given scores zrevrangebyscore KEY MAX MIN # a range of members within given scores, from max to min