Kraken Framework : Kraken is the first and only multi-processed, multi-threaded, fault-tolerant framework for PHP. It has been written to provide easy and reliable API f...
Faktory : Faktory is a language-agnostic, persistent background job system.
notifiers : A Python one stop shop for all notification providers with a unified and simple interface.
Clint : Clint is a python module filled with a set of awesome tools for developing commandline applications.
Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.