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(python2.1-lib.info)sched

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Event scheduler
===============

This manual section was written by Moshe Zadka
<moshez@zadka.site.co.il>.
General purpose event scheduler.

The `sched' module defines a class which implements a general purpose
event scheduler:

`scheduler(timefunc, delayfunc)'
     The `scheduler' class defines a generic interface to scheduling
     events. It needs two functions to actually deal with the "outside
     world" -- TIMEFUNC should be callable without arguments, and return
     a number (the "time", in any units whatsoever).  The DELAYFUNC
     function should be callable with one argument, compatible with the
     output of TIMEFUNC, and should delay that many time units.
     DELAYFUNC will also be called with the argument `0' after each
     event is run to allow other threads an opportunity to run in
     multi-threaded applications.

Example:

     >>> import sched, time
     >>> s=sched.scheduler(time.time, time.sleep)
     >>> def print_time(): print "From print_time", time.time()
     ...
     >>> def print_some_times():
     ...     print time.time()
     ...     s.enter(5, 1, print_time, ())
     ...     s.enter(10, 1, print_time, ())
     ...     s.run()
     ...     print time.time()
     ...
     >>> print_some_times()
     930343690.257
     From print_time 930343695.274
     From print_time 930343700.273
     930343700.276

Scheduler Objects