[Tutor] Accuracy of time.sleep()
Dave S
pythontut at pusspaws.net
Sat Dec 4 15:24:45 CET 2004
OK I may be pushing it, ;-)
I need a script to sleep from any point to 8:05AM when in needs to
re-start.
So I calculate the number of seconds with the following ....
def secs_till_805():
# Returns the number of seconds till 8:05AM
secs_5min=5*60
secs_24hr=24*60*60
secs_8hr=(8*60*60)+secs_5min
secs_8hr_24hr=secs_24hr-secs_8hr
hours=int(strftime('%H'))
mins=int(strftime('%M'))
secs=int(strftime('%S'))
sec_left=secs_24hr-((hours*60*60)+(mins*60)+secs)
# If we are before 8:05, then ...
if sec_left>secs_8hr_24hr:
return sec_left-secs_8hr_24hr
# If we are after 8:05, then ...
return sec_left+secs_8hr
Then I ...
sleep(secs_till_805())
I expected the script to re-start 2-3 seconds after 8:05, python
reloading after a long sleep etc, what I get is the script restarting at
08:04.55, earlier ???
OK this is not a world stopping problem, more of a curiosity.
Any suggestions
Dave
More information about the Tutor
mailing list