[Python-Dev] Comparison speed

[Tim Peters]

[Barry A. Warsaw]
> ...
> from types import StringType
> import time
> r = range(1000000)
>
> def one(r=r):
>     x = 'hello'
>     t0 = time.time()
>     for i in r:

Random clue:  when you're too lazy to try to subtact out loop overhead (not a
knock, I am too), you may have better luck with

    r = [1] * 1000000

than

    r = range(1000000)

The reason is that the former way gets to keep incref'ing and decref'ing a
single object (as it's repeatedly bound to "i" across iterations), instead of
slobbering all over memory inc'ing and dec'ing a million distinct objects.

there's-as-an-art-to-doing-nothing-quickly-ly y'rs  - tim