Reference library

Caching & Redis

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

1 match
Caching & Redis easy

How to Iterate Redis Keys with SCAN in Python

Iterate all Redis keys matching a pattern using the SCAN command with a mock client to simulate pagination.

redis scan keys
Python 
import redis

def scan_keys(client, pattern="*", count=10):
    keys = []
    cursor = 0
    while True:
        cursor, batch = client.scan(cursor=cursor, match=pattern, count=count)
        keys.extend(batch)
        if cursor == 0:
            break
    return keys

if __name__ == "__main__":
    # Mock Redis clien…
15 0 Open

Browse by section

Each section groups closely related Python snippets.

Caching & Redis — Python code examples

What you will find here

This page collects caching & redis snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.

Samples vs tutorials and challenges

Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

Related coding tools

Free online Python IDE Write and run Python in your browser — no install. Free Python code formatter Format with autopep8 — side-by-side PEP 8 cleanup. Python code samples Copy-ready snippets to study and run in the IDE.