python多线程练习

接到一个需求看看单点服务器能承受多少并发，记录一下脚本

# -*- coding: utf-8 -*-
import requests
import threading
import time
class postrequests():
    def __init__(self):
        self.url = 'http://12xxxx'
        self.files = {'image_file':open(r'C:\Users\renfy\Pictures\7m.png','rb'),

                      #'image2_file':open(r'D:\image\Pictures\1.jpg','rb')
                      }
    def post(self):
        try:
            r = requests.post(self.url,files=self.files)
            print(r.text)
        except Exception as e:
            print(e)

def login():
    login = postrequests()
    return login.post()
if __name__ == '__main__':
    login()
try:
    i = 0
    # 开启线程数目
    tasks_number = 5
    print('测试启动')
    time1 = time.clock()
    while i < tasks_number:
        t = threading.Thread(target=login)
        t.start()
        i +=1
    time2 = time.clock()

    times = time2 - time1
    print(times/tasks_number)
except Exception as e:
    print(e)