提高Python脚本的运行速度
// 源代码#!/usr/bin/python
import psyco
import timeit
def slow_func():
for a in range(320):
for b in range(320):
for c in range(320):
if 320 == (a + b + c) and 106400 == (520 * a+ 370 * b + 220 * c):
pass
if __name__ == '__main__':
fast_func = psyco.proxy(slow_func)
t1 = timeit.Timer("fast_func()", "from __main__ import fast_func")
t2 = timeit.Timer("slow_func()", "from __main__ import slow_func")
print "fast_func run %.2f sec" % t1.timeit(1)
print "slow_func run %.2f sec" % t2.timeit(1)
// 运行结果，提升了一个数量级（24倍）
fast_func run 0.16 sec
slow_func run 3.98 sec
页:
[1]