Celery is an open source asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well. It's written in Python and powered by the Redis key-value store.
Developers love Celery because it's simple yet powerful. It's highly configurable and can be used for a wide variety of tasks. Celery is also very easy to integrate with other frameworks and libraries, making it a great choice for projects that require asynchronous processing. With its robust features and reliable performance, it's a great choice for developers looking for a reliable asynchronous task processing system.