redis.set("key", 6)

assert redis.incr("key") == 7
If a key does not exist, it is initialized as 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer.

​
Arguments

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key
str
required
The key to increment.

​
Response

The value at the key after the incrementing.
redis.set("key", 6)

assert redis.incr("key") == 7