Richard D. Moores wrote:
See <http://tutoree7.pastebin.com/R82876Eg> for a speed test with n =
100,000 and 100,000 loops
As a general rule, you shouldn't try to roll your own speed tests. There
are various subtleties that can throw your results right out. Timing
small code snippets on modern multi-tasking computers is fraught with
difficulties.
Fortunately Python comes with that battery already included: the timeit
module. You can use it from the shell like this:
python -m timeit -s "setup code goes here" "test code goes here"
At the Python interactive interpreter, the most useful pattern I've
found is:
from timeit import Timer
t = Timer("proper_divisors(n)",
"from __main__ import proper_divisors; n = 100000")
min(t.repeat(repeat=5, number=100000))
Or if you're happy with Python's defaults, that last line can be just:
min(t.repeat())
--
Steven
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
