Python之免费随机代理IP的获取以及使用

from bs4 import BeautifulSoup
import requests
import random
#随机代理获取的网站
url = 'http://www.xicidaili.com/nn/'
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36'
}

#将获取到的代理IP存到ip_list中并返回列表
def get_ip_list(url, headers):
    web_data = requests.get(url, headers=headers)
    soup = BeautifulSoup(web_data.text, 'lxml')
    ips = soup.find_all('tr')
    ip_list = []
    for i in range(1, len(ips)):
        ip_info = ips[i]
        tds = ip_info.find_all('td')
        ip_list.append(tds[1].text + ':' + tds[2].text)
    return ip_list

#从代理IP列表中随机取出一个IP并返回
def get_random_ip(ip_list):
    proxy_list = []
    for ip in ip_list:
        proxy_list.append('http://' + ip)
    proxy_ip = random.choice(proxy_list)
    proxies = {'http': proxy_ip}
    return proxies


if __name__ == '__main__':
    ip_list = get_ip_list(url, headers=headers)
    print(ip_list)
    proxies = get_random_ip(ip_list)
    print(proxies)
　　　#代理IP的使用
    headers = {
        'User-Agent':'Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3 like Mac OS X; wo-SN) AppleWebKit/535.16.1 (KHTML, like Gecko) Version/4.0.5 Mobile/8B114 Safari/6535.16.1'
    }
    resp = requests.get('https://www.baidu.com',proxies = proxies,headers = headers)
    print(resp.text)