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Caching & Redis

Cache-aside, TTL, invalidation, hot keys, and in-memory lookup patterns at scale.

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Caching & Redis easy

How to Use Redis ZADD and ZRANGE in Python

Add members to a Redis sorted set with ZADD and retrieve them in score order with ZRANGE in Python.

redis sorted-set zadd
Python 
import redis

client = redis.Redis(host='localhost', port=6379, db=0)

client.delete('scores')

members = {'alice': 30, 'bob': 20, 'carol': 50}
for name, score in members.items():
    client.zadd('scores', {name: score})

result = client.zrange('scores', 0, -1)
print(result)
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