<技巧>python模块性能测试以python列表的内置函数append和insert为例以python列表insert方法和append方法快速创建1至1000的列表为例:

import sys
import timeit


# 使用insert创建1~1000的数组

def insert_num():
    thousand_list1 = list()
    for i in range(1, 1001):
        thousand_list1.insert(len(thousand_list1), i)
    #print (thousand_list1)

# 使用append创建1~1000的数组
def append_num():
    thousand_list2 = list()
    for i in range(1, 1001):
        thousand_list2.append(i)
    #print("append_num",thousand_list2)

#使用列表生成式生成

def main():
    name, num = sys.argv
    num = int(num)
    in_obj = timeit.Timer("insert_num()","from __main__ import insert_num")
    print("使用insert方法往列表插入1至1000, 方法反复执行%d次共耗时:"%num,in_obj.timeit(number=num),"秒")

    in_obj = timeit.Timer("append_num()","from __main__ import append_num")
    print("使用append方法依次往列表插入1至1000,方法反复执行 %d次共耗时:"%num,in_obj.timeit(number=num),"秒")
if __name__ == "__main__":
    main()