Op 12-12-11 20:46, rail shafigulin schreef:
i found something interesting during the timedate difference calculation
import datetime
import time
def main():
mydatetime = datetime.datetime.now()
time.sleep(1)
mydatetime2 = datetime.datetime.now()
diff = mydatetime - mydatetime2
Lie Ryan explains how to read the output below, but you made a little
error here.
Let's have a little example:
>>> x1 = 1
>>> x2 = x1 + 1
>>> print(x1 - x2)
-1
>>> print(x2 - x1)
1
So you should substract mydatetime from mydatetime2, not the other way
around.
Cheers,
Timo
print(diff)
if __name__ == '__main__':
main()
if you run this code the result you get will be
-1 day, 23:59:59
at least that is what i'm getting.
i was expecting to get -1 second. diff object is of type timedelta.
this kind of objects represent duration, at least that is what i
understood from the documentation
(http://docs.python.org/release/3.1.3/library/datetime.html#timedelta-objects).
so, is this a bug in the timedelta implementation or is it me not
understanding documentation properly?
any help is appreciated.
ps. i'm using python 3.1 on a windows xp machine.
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