I also liked Huey because of it's simplicity, and tried using it in a commercial project, but it couldn't execute periodic tasks in less than a minute intervals which puzzled me a bit. I had need to execute task every 10 seconds to reindex database changes to ElasticSearch.

After opening GitHub issue about it and asking if there were plans to implement sub-minute intervals, library's author (coleifer on github) had dismissive/arrogant attitude, and his reply was something along the lines of "too bad you cannot fork it and do it by yourself" and deleted my thread.

This threw me off from using this library, and I went back to Celery.