import time
import timeit
start = timeit.timeit()
time.sleep(5)
end = timeit.timeit()
time_elapsed = end - start
print(end)
print(time_elapsed)
print(start)
Outputs:
0.018255482330552297
-0.00033663523232263515
0.018592117562874932
Asked
Active
Viewed 2,336 times
-2
-
Seconds, as float. [Documentation is your friend](https://docs.python.org/3/library/timeit.html#timeit.Timer.timeit) – user3483203 Mar 13 '18 at 06:06
-
https://docs.python.org/3.6/library/timeit.html – Dadep Mar 13 '18 at 06:06
1 Answers
2
As the documentation clearly says:
This… returns the time it takes to execute the main statement a number of times, measured in seconds as a float.
Meanwhile, notice that this is the elapsed time to run the main statement—that is, nothing at all, in your case. It's not a timestamp or anything like that. So subtracting end - start doesn't give you anything useful—it's the difference in elapsed time for two different runs of a no-op.
abarnert
- 354,177
- 51
- 601
- 671
-
1...and since there is no main statement, it doesn't take long to execute... – Tim Pietzcker Mar 13 '18 at 06:07