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Perl and Python

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...my sojourn continues

...my sojourn continues, getting the module to send msg

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dwun	12 May, 2008 - 11:22 AM Post #1
New D.I.C Head Joined: 5 Mar, 2008 Posts: 2	hello...i guess i missed my way somehow and had this posted somewhere else... """ thanks for the help nova i have actually gone thru the docs but i dont seem to understand how to use signals or threading...is there any online doc that u can link me to?...also,i finally came across the sleep() function and it seems to work just fine... using someething like t=Timer(20,serialOpen()) did not seem to be a wayout for me. Along the way i got stuck trying to make a function loop forever but cary out certain actions at intervals of time.this is what i've come up with so far: CODE def istime2send(): while sendtime()>time(): sleep(sendtime()-time()) print 'sleeping' while sendtime()==time(): sendtime(0.0011) print '...' def sendtime(interval=1): act_time=3600interval sendtime=time()+act_time return sendtime help will be highly appreciated .....attatched is my lil prog so far... well i got over it somehow by doing this... CODE def istime2send(interval=1): act_time=3600interval sendtime=time()+act_time while sendtime>time(): sleep(act_time), sendtime+=act_time return True it works like a spell!! but... i still need some more help with selecting numbers,noting that i have to specify the time interval for each and have some way to send it... i've come up with this so far... CODE def send2num(): numz={'08021111111':0.001,'08024434343':0.023,'08776663332':0.1} for k,v in numz.iteritems(): if istime2send(v): return k #print k problem is if i use print k,it works properly but if i use return k---which is what i intend to do,it just keeps iteratiing over the first dict item...i.e CODE if __name__=='__main__': while send2num():#or while True print send2num() help will be highly appreciated.
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linuxunil

19 May, 2008 - 09:07 AM

Post #2

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Joined: 7 Mar, 2006
Posts: 46

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I would recommend picking up Python Cookbook it has recipes for all of the questions you have.

Here is a recipe from the book about scheduling commands that should work for you. (The book gives permission to use in this manner)

python


import time, os, sys, sched
schedule = sched.scheduler(time.time, time.sleep)
def perform_command(cmd, inc):
	schedule.enter(inc, 0, perform_command, (cmd, inc)) # re-scheduler
	os.system(cmd) 
def main(cmd, inc=60):
	schedule.enter(0,0, perform_command, (cmd, inc)) # 0 == right now
	schedule.run()
if __name__ == '__main__':
	numargs = len(sys.argv) -1
	if numargs < 1 or numargs >2:
		print "usage: " + sys.argv[0] + " command [seconds_delay]"
		sys.exit(1)
	cmd = sys.argv[1]
	if numargs < 3:
	    main(cmd)
	else:
	    inc = int(sys.argv[2])
	    main(cmd, int)