This assumes you are already able to connect to Redis using Python. If not, check out my article Connect to Redis using Python. Here is an example of how to create a key value pair using set.

#!/usr/bin/python3
import redis

try:
  client = redis.Redis.from_url("redis://my-redis-cluster.abc123.clustercfg.use1.cache.amazonaws.com:6379")
except Exception as exception:
  print(f"got the following exception when trying redis.Redis.from_url - {exception}")
else:
  print(f"It appears the connection to Redis was successful")

try:
  client.set('foo', 'bar')
except Exception as exception:
  print(f"got the following exception when trying to set key 'foo' to have a value of 'bar' - {exception}")
else:
  print(f"successfully set the 'foo' key to have a value of 'bar'")

try:
  response = client.get('foo')
except Exception as exception:
  print(f"got the following exception when trying to get key 'foo' - {exception}")
else:
  print(f"foo = {response.decode('utf-8')}")

Something like this should be returned.

It appears the connection to Redis was successful
successfully set the 'foo' key to have a value of 'bar'
foo = bar