DECR

Decrement the integer value of a key by one

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

key

str

required

The key to decrement.

Response

The value at the key after the decrementing.

Example

redis.set("key", 6)

assert redis.decr("key") == 5