Fennel is a task queue for Python 3.7+ based on Redis Streams with a Celery-like API.
Supports both sync (e.g. Django, Flask) and async (e.g. Starlette, FastAPI) code.
Sane defaults: at least once processing semantics, tasks acknowledged on completion.
Automatic retries with exponential backoff for fire-and-forget jobs.
Clear task statuses available (e.g. sent, executing, success).
Automatic task discovery (defaults to using
Exceptionally small and understandable codebase.
This is an alpha release. The project is under development, breaking changes are likely.
pip install fennel
Run Redis and then write your code in
from fennel import App app = App(name='myapp', redis_url='redis://127.0.0.1') @app.task def foo(n) return n # Enqueue a task to be executed in the background by a fennel worker process. foo.delay(7)
Meanwhile, run the worker:
$ python -m fennel worker --app tasks:app
from fennel import App app = App(name='myapp', redis_url='redis://127.0.0.1', interface='async') @app.task async def bar(x) return x await bar.delay(5)
- API Reference