timer question

[Elittdogg]

Ok, so I feel really stupid but I can't figure this one out. I'm trying to implement a timer that tells you how much time has elapsed at certain intervals. In other words, if I'm running a 600 second (10 min) trial, I'd like to be notified when 300 seconds have passed, when 400 seconds have passed and when 500 seconds have passed (or something like that). The problem is, when I run this (there's more code above but it has nothing to do with the elapsed time):

def mytimer2(num):
if num == 0:
print 'Elapsed time:', viz.elapsed(),'seconds'

def onkeydown(key):
if key == ' ':
viz.starttimer(0,(1.0/40),viz.FOREVER)
viz.starttimer(1,60,1)

viz.callback(viz.KEYDOWN_EVENT,onkeydown)
viz.callback(viz.TIMER_EVENT,mytimer)

viz.callback(viz.TIMER_EVENT,mytimer2)
viz.starttimer(0,2.4)


I get:
Elapsed time: 0.0404154717988 seconds
Elapsed time: 0.0300169434942 seconds
Elapsed time: 0.0302259086001 seconds
Elapsed time: 0.0502695174945 seconds
Elapsed time: 0.0304756610128 seconds
Elapsed time: 0.0594360456427 seconds
Elapsed time: 0.0897818018771 seconds
Elapsed time: 0.0305709245169 seconds
Elapsed time: 0.0611904585639 seconds
Elapsed time: 0.0498390158526 seconds
Elapsed time: 0.0498803618896 seconds
Elapsed time: 0.0499303682451 seconds
Elapsed time: 0.0499004761778 seconds
Elapsed time: 0.0499605396775 seconds
Elapsed time: 0.0499921079355 seconds
Elapsed time: 0.0499136063382 seconds
Elapsed time: 0.0498828761756 seconds
Elapsed time: 0.049988476189 seconds
Elapsed time: 0.0497297840927 seconds
Elapsed time: 0.0501510666858 seconds
Elapsed time: 0.0498091237853 seconds
Elapsed time: 0.0497898475924 seconds
Elapsed time: 0.0499610984078 seconds
Elapsed time: 0.049934838087 seconds
Elapsed time: 0.0399550780895 seconds
Elapsed time: 0.0258921175736 seconds
Elapsed time: 0.0327119787571 seconds
Elapsed time: 0.0332114835824 seconds
Elapsed time: 0.0335727026759 seconds
Elapsed time: 0.0540660894052 seconds
Elapsed time: 0.0300367784174 seconds
Elapsed time: 0.0900379796874 seconds
Elapsed time: 0.0254152413226 seconds
Elapsed time: 0.0536895052304 seconds
Elapsed time: 0.0293087529281 seconds
Elapsed time: 0.0709419772625 seconds
Elapsed time: 0.0289522830416 seconds
Elapsed time: 0.0506083873788 seconds
Elapsed time: 0.0323689183961 seconds
Elapsed time: 0.0676222816028 seconds
Elapsed time: 0.0321641437669 seconds
Elapsed time: 0.0475708504852 seconds
Elapsed time: 0.0351245758888 seconds
Elapsed time: 0.0446880818652 seconds
Elapsed time: 0.0388387350906 seconds
Elapsed time: 0.051005365207 seconds
Elapsed time: 0.0321038009021 seconds
Elapsed time: 0.0441273960797 seconds
Elapsed time: 0.0390069128898 seconds
Elapsed time: 0.034387890081 seconds
Elapsed time: 0.0319954072375 seconds
Elapsed time: 0.0559900769511 seconds
Elapsed time: 0.0301099720775 seconds
Elapsed time: 0.0698421168053 seconds
Elapsed time: 0.0304359911665 seconds
Elapsed time: 0.0512134922176 seconds
Elapsed time: 0.0484530855179 seconds
Elapsed time: 0.0595718170885 seconds
Elapsed time: 0.0304052610038 seconds
Elapsed time: 0.0342286519655 seconds
Elapsed time: 0.149784120608 seconds
Elapsed time: 0.0693127199127 seconds
Elapsed time: 0.0901446971612 seconds
Elapsed time: 0.0799568101532 seconds
Elapsed time: 0.069858319982 seconds
Elapsed time: 0.140486849586 seconds
Elapsed time: 0.0492009459303 seconds
Elapsed time: 0.0299817434897 seconds
Elapsed time: 0.039783547909 seconds
Elapsed time: 0.0399014399875 seconds
Elapsed time: 0.0600785854068 seconds
Elapsed time: 0.059874648873 seconds
Elapsed time: 0.0397114717094 seconds
Elapsed time: 0.0600822171533 seconds
Elapsed time: 0.0391546970355 seconds
Elapsed time: 0.0407870274015 seconds
Elapsed time: 0.0397782399718 seconds
Elapsed time: 0.0499708761868 seconds
Elapsed time: 0.0298599402997 seconds
Elapsed time: 0.039700855835 seconds
Elapsed time: 0.0402174019324 seconds
Elapsed time: 0.0398086907694 seconds
Elapsed time: 0.0507089588202 seconds
Elapsed time: 0.250029822226 seconds
Elapsed time: 0.129951991105 seconds
Elapsed time: 0.210361931475 seconds
Elapsed time: 0.0701253930318 seconds
Elapsed time: 0.140293528926 seconds
Elapsed time: 0.0890523795622 seconds
Elapsed time: 0.0709620915507 seconds
Elapsed time: 0.079391933891 seconds
Elapsed time: 0.140002430476 seconds
Elapsed time: 0.0799908926973 seconds
Elapsed time: 0.089535960576 seconds
Elapsed time: 0.0325985565205 seconds
Elapsed time: 0.0874242396729 seconds
Elapsed time: 0.089893547923 seconds
Elapsed time: 0.0597355250458 seconds
Elapsed time: 0.0598123504524 seconds
Elapsed time: 0.0403749638571 seconds
Elapsed time: 0.0594826996169 seconds
Elapsed time: 0.0401626463699 seconds
Elapsed time: 0.0596958551995 seconds
Elapsed time: 0.0400877765191 seconds
Elapsed time: 0.0621375063032 seconds
Elapsed time: 0.0377503286032 seconds
Elapsed time: 0.0878555794102 seconds
Elapsed time: 0.0416790402132 seconds
Elapsed time: 0.0607434743801 seconds
Elapsed time: 0.0548544577593 seconds
Elapsed time: 0.0846071218549 seconds
Elapsed time: 0.0320761437557 seconds
Elapsed time: 0.0330757121366 seconds
Elapsed time: 0.0339185566881 seconds
Elapsed time: 0.0502295682831 seconds
Elapsed time: 0.0311514452256 seconds
Elapsed time: 0.0512213144408 seconds
Elapsed time: 0.0322535406036 seconds
Elapsed time: 0.0328541756005 seconds
Elapsed time: 0.0335822010898 seconds
Elapsed time: 0.03859401125 seconds
Elapsed time: 0.027829514645 seconds


Now, if I don't press the spacebar to start the stimulus then I'll get this:
Elapsed time: 2.42326859978 seconds
Elapsed time: 2.41321369057 seconds

but once I press the key to start the program, I get the output above. Is there a way that I can bypass all of that output every 0.0XXXXX seconds and just get Vizard to print when X, Y, Z, etc. seconds have passed???