fakeredis is a pure python implementation of the redis-py python client that
simulates talking to a redis server. This was created for a single purpose:
to write unittests. Setting up redis is not hard, but many times you want to
write unittests that do not talk to an external server (such as redis). This
module now allows tests to simply use this module as a reasonable substitute
for redis.

WWW: https://github.com/jamesls/fakeredis