Comparing
Async http client/server framework (asyncio)
Python client for Redis — the in-memory data store for caching, pub/sub, and queues.
| Metric | aiohttp | redis |
|---|---|---|
| Ecosystem | Python | Python |
| Difficulty | Beginner ✓ | Intermediate |
| Weekly downloads | 0 | 8.5M↑ |
| Latest version | v3.13.5 | v5.0.8 |
| Recipes | 1 | 3↑ |
aiohttp only
Shared
redis only
Use aiohttp when you need a battle-tested async HTTP client or server, especially in applications that make many concurrent HTTP calls (scrapers, API aggregators) or build lightweight async web services. It has a mature ecosystem and is widely used in production.
Caching API responses or DB queries, session storage, rate limiting counters, pub/sub messaging, leaderboards (sorted sets), task queues (BLPOP), distributed locks.
For new async API projects, FastAPI (built on Starlette/uvicorn) has better developer ergonomics, automatic validation, and docs. For synchronous scripts, requests is simpler. httpx offers a compatible API with both sync and async modes if you want flexibility.
Primary persistent storage — Redis is RAM-first and can evict data. Complex relational queries. Large blobs (Redis excels at small, fast values).
aiohttp
redis