Redis: How to parse a list result

Question

I am storing a list in Redis like this:

redis.lpush(\'foo\', [1,2,3,4,5,6,7,8,9])

And then I get the list back like this:

r         


        

Answer 1

I think you're bumping into semantics which are similar to the distinction between list.append() and list.extend(). I know that this works for me:

myredis.lpush('foo', *[1,2,3,4])

... note the * (map-over) operator prefixing the list!

Answer 2

import json
r = [b'[1, 2, 3, 4, 5, 6, 7, 8, 9]']
rstr = r[0]
res_list = json.loads(rstr)

Answer 3

Another way: you can use RedisWorks library.

pip install redisworks

>>> from redisworks import Root
>>> root = Root()
>>> root.foo = [1,2,3,4,5,6,7,8,9]  # saves it to Redis as a list
...
>>> print(root.foo)  # loads it from Redis later

It converts python types to Redis types and vice-versa. So even if you had nested list, it would have worked:

>>> root.sides = [10, [1, 2]]  # saves it as list in Redis.
>>> print(root.sides)  # loads it from Redis
[10, [1, 2]]
>>> type(root.sides[1])
<class 'list'>

Disclaimer: I wrote the library. Here is the code: https://github.com/seperman/redisworks