对比一下CPython和PyPy的速度

ask.py

#!/usr/bin/env python
import cProfile

def main():
    for i in range(100000000):
        i / 5.53892138021312312 * 23.23123121321321312 
    print(i)

cProfile.run("main()")

'''
% python --version
Python 2.7.5

% python ask.py
99999999
         4 function calls in 12.158 seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1    0.000    0.000   12.158   12.158 <string>:1(<module>)
        1   10.191   10.191   12.158   12.158 ask.py:4(main)
        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
        1    1.967    1.967    1.967    1.967 {range}

% pypy --version
Python 2.7.3 (87aa9de10f9c, Nov 24 2013, 20:57:21)
[PyPy 2.2.1 with GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.79)]

% pypy ask.py 
99999999
         4 function calls in 0.122 seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1    0.000    0.000    0.122    0.122 <string>:1(<module>)
        1    0.122    0.122    0.122    0.122 ask.py:4(main)
        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
        1    0.000    0.000    0.000    0.000 {range}
'''

来个fibs看看！