Idempotency keys with redis-py

pydempotent.py

from datetime import timedelta
from redis import Redis

def pydempotent(redis: Redis, ttl: timedelta | int | None, key: str):
    """
    Shields a block of code from repeated execution.
    """
    return redis.set(f"pydempotent:{key}", 1, nx=True, ex=ttl)

redis = Redis.from_url("redis://localhost:6379")
if pydempotent(redis, 3600, "test_key"):
    print("doing stuff!")