huey
A little task queue for python
...It can execute tasks with processes, threads, or greenlets, which makes it adaptable to different workloads. Huey also supports scheduled tasks, recurring tasks, retries, task priorities, result storage, expiration, locking, rate limits, timeouts, pipelines, groups, and chords. Overall, it is a practical option for Python teams that want background processing without the complexity of a heavier distributed task system.