While the API looks really nice and clean, this seems to lack any sort of task distribution mechanism, i.e. tasks run in-process but cannot be passed off to off-process workers, like in e.g. Celery [1] or RQ [2] (the former also does scheduling, the latter is more of a job queueing library, that can do scheduling via an add-on [3])

1: http://www.celeryproject.org/ 2: http://python-rq.org/ 3: https://github.com/ui/rq-scheduler