Python实现自动访问网页

import urllib.request
import requests
import time
import ssl
import random
def openUrl(ip, agent):
    headers = {'User-Agent': agent}
    proxies = {'http' : ip}
    requests.get("https://www.baidu.com", headers=headers, proxies=proxies, verify=True)
    ssl._create_default_https_context = ssl._create_unverified_context
    print("Access to success.")
#IP池
#IP来源：
# http://www.xicidaili.com/
# https://www.kuaidaili.com/free/
def randomIP():
    ip = random.choice(['120.78.78.141', '122.72.18.35', '120.92.119.229'])
    return ip
#User-Agent
#User-Agent来源：http://www.useragentstring.com/pages/useragentstring.php
def randomUserAgent():
    UserAgent = random.choice(['Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36',
                              'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.1 Safari/537.36',
                              'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.0 Safari/537.36'])
    return UserAgent
if __name__ == '__main__':
    for i in range(10):
        ip = randomIP()
        agent = randomUserAgent()
        openUrl(ip, agent)
        time.sleep(1)