invalid time - why ?

[fowlertrainer]

Hello python-list,
starttime=time.time()
.... process ....
endtime=time.time()
dtime=endtime-starttime
print "Started at:", time.strftime("%H:%M:%S",time.localtime(starttime))
print "Ended at:", time.strftime("%H:%M:%S",time.localtime(endtime))
#print time.localtime(dtime)
print "Deltatime: ", time.strftime("%H:%M:%S",time.localtime(dtime))

My problem is in the result:

Executing: C:\Program Files\ConTEXT\ConExec.exe "C:\Python\python.exe" "C:\dev\PYTPFlood\pytpflood.py"

Parameters are: {'host': 'http://ks/', 'repeat': 1, 'threads': 1, 'port': 80, 'slip': 1000}
Request: 1
Thread count: 0
Started at: 15:12:04
Ended at: 15:12:05
Deltatime: 01:00:01 ????????? <--- why ?

Execution finished.

What I do wrong ?

The deltatime hour section is wrong. But why ?


Thanx.

 

[Thomas Guettler]

Am Tue, 09 Dec 2003 15:14:51 +0100 schrieb fowlertraine:

Hello python-list,
starttime=time.time()
.... process ....
endtime=time.time()
dtime=endtime-starttime
print "Started at:", time.strftime("%H:%M:%S",time.localtime(starttime))
print "Ended at:", time.strftime("%H:%M:%S",time.localtime(endtime))
#print time.localtime(dtime)
print "Deltatime: ", time.strftime("%H:%M:%S",time.localtime(dtime))

Python like most operating system use seconds since 1970 for storing the time.

If you do "endtime-startime" your result will surely by in the year 1970.

You could do:
print "Deltatime %s hours" % float(dtime)/(60*60)

thomas

 

[Peter Otten]

Hello python-list,
starttime=time.time()
.... process ....
endtime=time.time()
dtime=endtime-starttime
print "Started at:",
time.strftime("%H:%M:%S",time.localtime(starttime)) print "Ended at:",
time.strftime("%H:%M:%S",time.localtime(endtime))
#print time.localtime(dtime)
print "Deltatime: ", time.strftime("%H:%M:%S",time.localtime(dtime))

My problem is in the result:


Parameters are: {'host': 'http://ks/', 'repeat': 1, 'threads': 1, 'port':
80, 'slip': 1000}
Request: 1
Thread count: 0
Started at: 15:12:04
Ended at: 15:12:05
Deltatime: 01:00:01 ????????? <--- why ?

What I do wrong ?

The deltatime hour section is wrong. But why ?

The extra hour comes from your timezone being Middle European Time (1 hour
ahead of GMT) whereas the Unix epoch starts on Jan 1, 1970, 00:00:00 GMT.
The displayed results of your script will vary with the timezone used when
you execute it.
To fix it, replace time.localtime() with time.gmtime() in the above.
Otherwise your approach should work as long as you are displaying time spans
that amount to less than 24 hours.

Peter