为获取网上免费代理IP，闲的无聊，整合了一下，免费从三个代理网站获取免费代理IP，目的是在某一代理网站被限制时，仍可从可以访问的其他网站上获取代理IP。亲测可用哦！^_^ 仅供大家参考，以下脚本可添加函数，用于代理IP自动访问其他东西。
1 import requests 2 import urllib.request 3 from bs4 import BeautifulSoup 4 import random,time,re 5 import random 6 from urllib.request import FancyURLopener 7 8 IPRegular = r"(([1-9]?d|1d{2}|2[0-4]d|25[0-5]).){3}([1-9]?d|1d{2}|2[0-4]d|25[0-5])" 9 headers = {'User-Agent', 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36'} 10 header1 = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) ''AppleWebKit/537.36 (KHTML, like Gecko) ''Ubuntu Chromium/44.0.2403.89 ' 11 'Chrome/44.0.2403.89 ''Safari/537.36'} 12 # 定义用于存放IP的列表 13 IPs = [] 14 proxy_list = [] 15 16 17 #代理一： 18 def getIPList1(): 19 for i in range(1, 3): 20 req = urllib.request.Request(url='http://www.xicidaili.com/nt/{0}'.format(i), headers=header1) 21 r = urllib.request.urlopen(req) 22 soup = BeautifulSoup(r,'html.parser',from_encoding='utf-8') 23 table = soup.find('table', attrs={'id': 'ip_list'}) 24 tr = table.find_all('tr')[1:] 25 #解析得到代理ip的地址，端口，和类型 26 for item in tr: 27 tds = item.find_all('td') 28 temp_dict = {} 29 kind = "{0}:{1}".format(tds[1].get_text().lower(), tds[2].get_text()) 30 proxy_list.append(kind) 31 return proxy_list 32 33 #代理二： 34 def getIPList2(): 35 # 代理网站的地址的格式 36 # 根据观察url，发现各省的代理IP页面由数字控制 37 # 所以我们先用占位符{}代替这个数字的位置 38 url = 'http://www.66ip.cn/areaindex_16/{}.html' 39 for page in range(10): 40 # 先填占位符生成一个省的url 41 url = url.format(page) 42 # get()方法访问，得到一个Response对象 43 rsp = requests.get(url) 44 # Response对象的text属性得到源码 45 text = rsp.text 46 # 用BeautifulSoup()方法将源码生成能被解析的lxml格式文件 47 soup = BeautifulSoup(text, 'lxml') 48 # 用find()找放置IP的表 49 table = soup.find(name='table', attrs={'border': '2px'}) 50 # 用find_all()找到所以的IP 51 ip_list = table.find_all(name='tr') 52 # 循环遍历每个IP 53 for addr in ip_list: 54 # 观察源码发现第一个tr里的内容不是IP，所以跳过 55 if addr == ip_list[0]: 56 continue 57 # 获取IP 58 ip = addr.find_all(name='td')[0].string 59 # 获取端口 60 port = addr.find_all(name='td')[1].string 61 proxy = '%s:%s' % (ip, port) 62 proxy_list.append(proxy) 63 return proxy_list 64 65 #代理三： 66 def getIPList3(): 67 request_list = [] 68 headers = { 69 'Host': 'www.iphai.com', 70 'User-Agent': 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)', 71 'Accept': r'application/json, text/javascript, */*; q=0.01', 72 'Referer': r'http://www.iphai.com',} 73 request_item = "http://www.iphai.com/free/ng" 74 request_list.append(request_item) 75 for req_id in request_list: 76 req = urllib.request.Request(req_id, headers=headers) 77 response = urllib.request.urlopen(req) 78 html = response.read().decode('utf-8') 79 80 ip_list = re.findall(r'd+.d+.d+.d+', html) 81 port_list = re.findall(r'(sd+s)', html) 82 for i in range(len(ip_list)): 83 #total_count += 1 84 ip = ip_list[i] 85 port = re.sub(r'(^s*)|(s*$)/g','',port_list[i]) 86 proxy = '%s:%s' % (ip, port) 87 proxy_list.append(proxy) 88 return proxy_list 89 90 91 92 if __name__ == "__main__": 93 #选择可以访问的代理 94 list1 = ['http://www.66ip.cn/','https://www.xicidaili.com','http://www.iphai.com/free/ng'] 95 while 1==1: 96 for url in list1: 97 try: 98 r = requests.get(url, timeout=5,headers=header1) 99 if r.status_code == 200: 100 if url == list1[0]: 101 print ("OK 网站访问正常", url) 102 IPs = getIPList2() 103 elif url == list1[1]: 104 print ("OK 网站访问正常", url) 105 IPs = getIPList1() 106 elif url == list1[2]: 107 print ("OK 网站访问正常", url) 108 IPs = getIPList3() 109 break 110 except : 111 print ("Error 不能访问！", url) 112 break 113 print("获取的代理IP为：",IPs) 114 time.sleep(10)