redis.zadd("key1", {"a": 1, "b": 2, "c": 3})

redis.zadd("key2", {"c": 3, "d": 4, "e": 5})

result = redis.zunionstore(["key1", "key2"])

assert result == 5

​
Arguments

​
destination
str
required
The key to store the resulting set in.
​
keys
List[str]
required
The keys of the sets to compare.
​
weights
List[float]
default:"None"
The weights to apply to the sets.
​
aggregate
"SUM" | "MIN" | "MAX"
default:"sum"
The aggregation function to apply to the sets.
​
withscores
bool
default:"false"
Whether to include scores in the result.

​
Response

The number of elements in the resulting set.
redis.zadd("key1", {"a": 1, "b": 2, "c": 3})

redis.zadd("key2", {"c": 3, "d": 4, "e": 5})

result = redis.zunionstore(["key1", "key2"])

assert result == 5