# -*- coding: utf-8 -*-
#!/bin/env python

def test1():
    n=0
    for i in range(101):
        n+=i
    return n

def test2():
    return sum(range(101))

def test3():
    return sum(x for x in range(101))

if __name__=='__main__':
    from timeit import Timer
    t1=Timer("test1()","from __main__ import test1"
 
)
    t2=Timer("test2()","from __main__ import test2")
    t3=Timer("test3()","from __main__ import test3")
    print t1.timeit(1000000)
    print t2.timeit(1000000)
    print t3.timeit(1000000)
    print t1.repeat(3,1000000)
    print t2.repeat(3,1000000)
    print t3.repeat(3,1000000)

輸出

tiny@tiny-desktop:~/workspace/py$ python timetest.py 
7.99498915672
 

3.13702893257
10.6419789791
[8.2126381397247314, 8.6312708854675293, 8.6079621315002441]
[3.3426268100738525, 3.3914170265197754, 3.5281510353088379]
[11.097387075424194, 10.941920042037964, 10.874698877334595]