python程序运行计时

if __name__ == '__main__':
    begin = time.time()
    for i in read_data():
        course_url, root_path = i
        sp = Spider(course_url, root_path)
        sp.run()
    end = time.time()
    temp = end-begin
    hours = temp//3600
    temp = temp - 3600*hours
    minutes = temp//60
    seconds = temp - 60*minutes
    print('共计耗时：%d:%d:%d' %(hours,minutes,seconds))