1. jhensley
  2. apscheduler


Advanced Python Scheduler (apscheduler) is a light but powerful in-process task scheduler that lets you schedule functions (or any python callables) to be executed at times of your choosing.

The development of apscheduler was heavily influenced by the Quartz task scheduler written in Java, although APScheduler cannot claim as many features.


  • No external dependencies
  • Thread-safe API
  • Cron-like scheduling
  • Delayed scheduling of single fire jobs (like the UNIX "at" command)
  • Interval-based scheduling of jobs, with configurable start date and repeat count


Documentation can be found on the APScheduler site.


The source can be browsed at Bitbucket.