6.10 sched -- Event scheduler
Python Library Reference
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6.10 sched --
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
Subsections
6.10.1 Scheduler Objects
Python Library Reference
Previous: 6.9 time
Up: 6. Generic Operating System
Next: 6.10.1 Scheduler Objects
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