periodic python scheduler

looper.py

import sched, time


class looper(sched.scheduler):
    def loop(self, interval, p, action, actionargs=()):
        self.enter(interval, 1, self.loop, (interval, p, action, actionargs))
        action(*actionargs)


s = looper(time.time, time.sleep)


def task_heartbeat():
    print time.time(), u"\u2665", len(s.queue)


def task_print_time(text):
    print time.time(), text, len(s.queue)


s.loop(1, 1, task_heartbeat, ())
s.loop(3, 1, task_print_time, ("print time 1",))
s.loop(10, 1, task_print_time, ("print time 2",))
s.run()

Inspired by http://stackoverflow.com/a/2399145/347181