redis.set("key1", "Hello")
redis.set("key2", "World")

# Rename failed because "key2" already exists.
assert redis.renamenx("key1", "key2") == False

assert redis.renamenx("key1", "key3") == True

assert redis.get("key1") is None
assert redis.get("key2") == "World"
assert redis.get("key3") == "Hello"
Renames a key, only if the new key does not exist. Throws an exception if the key does not exist.

​
Arguments

​
source
str
required
The original key.
​
destination
str
required
A new name for the key.

​
Response

True if key was renamed
redis.set("key1", "Hello")
redis.set("key2", "World")

# Rename failed because "key2" already exists.
assert redis.renamenx("key1", "key2") == False

assert redis.renamenx("key1", "key3") == True

assert redis.get("key1") is None
assert redis.get("key2") == "World"
assert redis.get("key3") == "Hello"