redis-py : What's the difference between StrictRedis() and Redis()?

Question

I want to use redis-py for caching some data, but I can't find a suitable explanation of the difference between redis.StrictRedis() and redis.Redis(). Are they equivalent?

In addition, I can't find any clear documentation about redis.StrictRedis()'s arguments in Redis Python Docs. Any idea?

Answer 1

This seems pretty clear:

 redis-py exposes two client classes that implement these commands
 The StrictRedis class attempts to adhere to the official command syntax.

and

In addition to the changes above, the Redis class, a subclass of StrictRedis,
overrides several other commands to provide backwards compatibility with older
versions of redis-py

Do you need backwards compatibility? Use Redis. Don't care? Use StrictRedis.

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2017-03-31

Here are the specifics of the backwards compatibility, from the github.com link cited:

In addition to the changes above, the Redis class, a subclass of StrictRedis, overrides several other commands to provide backwards compatibility with older versions of redis-py:

LREM: Order of 'num' and 'value' arguments reversed such that 'num' can provide a default value of zero.

ZADD: Redis specifies the 'score' argument before 'value'. These were swapped accidentally when being implemented and not discovered until after people were already using it. The Redis class expects *args in the form of: name1, score1, name2, score2, ...

SETEX: Order of 'time' and 'value' arguments reversed.

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