python 爬虫 获取西刺网免费高匿代理ip

import chardet
import requests
from scrapy.selector import Selector
import random
from telnetlib import Telnet

ip_list = []
def getData(url):

    user_agent = [
        "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50",
        "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50",
        "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0",
        "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; InfoPath.3; rv:11.0) like Gecko",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",
        "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)",
        "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)",
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1",
        "Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1",
        "Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; en) Presto/2.8.131 Version/11.11",
        "Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11",
        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_0) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon 2.0)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; The World)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; SE 2.X MetaSr 1.0)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Avant Browser)",
        "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)",
        "Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5",
        "Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5",
        "Mozilla/5.0 (iPad; U; CPU OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5",
        "Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1",
        "MQQBrowser/26 Mozilla/5.0 (Linux; U; Android 2.3.7; zh-cn; MB200 Build/GRJ22; CyanogenMod-7) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1",
        "Opera/9.80 (Android 2.3.4; Linux; Opera Mobi/build-1107180945; U; en-GB) Presto/2.8.149 Version/11.10",
        "Mozilla/5.0 (Linux; U; Android 3.0; en-us; Xoom Build/HRI39) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13",
        "Mozilla/5.0 (BlackBerry; U; BlackBerry 9800; en) AppleWebKit/534.1+ (KHTML, like Gecko) Version/6.0.0.337 Mobile Safari/534.1+",
        "Mozilla/5.0 (hp-tablet; Linux; hpwOS/3.0.0; U; en-US) AppleWebKit/534.6 (KHTML, like Gecko) wOSBrowser/233.70 Safari/534.6 TouchPad/1.0",
        "Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/20.0.019; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.18124",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Titan)",
        "UCWEB7.0.2.37/28/999",
        "NOKIA5700/ UCWEB7.0.2.37/28/999",
        "Openwave/ UCWEB7.0.2.37/28/999",
        "Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/999",
        # iPhone 6：
        "Mozilla/6.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/8.0 Mobile/10A5376e Safari/8536.25",

    ]

    #获取网页内容
    html = requests.get(url,headers={'User-Agent':random.choice(user_agent)})
    code = chardet.detect(html.content)['encoding']
    html.encoding=code

    selector = Selector(text=html.text)

    #三种网页内容选择方法
    parent = selector.xpath('//table[@id="ip_list"]')
    #parent = soup.find('table',id='ip_list')
    #parent = selector.css('#ip_list')[0]

    trs = parent.xpath('//tr')
    trs.pop(0)
    for each in trs:
        ip = each.xpath('./td[2]/text()').extract()[0]
        port = each.xpath('./td[3]/text()').extract()[0]
        type = each.xpath('./td[6]/text()').extract()[0]
        servive = each.xpath('./td[9]/text()').extract()[0]
        if '分' in servive or '秒' in servive:
            continue
        ip_list.append([ip,port,type,servive])
    #验证ip是否可用
    print("一共有",len(ip_list),"个待验证")
    for i,each in enumerate(ip_list):
        try:
            print("正在验证",i+1,"个ip：",each[0]+':'+each[1])
            Telnet(each[0],each[1],timeout=0)
            print("第", i + 1, "个ip可用")
        except:
            print("第",i+1,"个ip不可用")
            ip_list.remove(each)

#拼接成scrapy可用的列表
ips1=[]
ips2=[]
def for_requests(ip_list):

    for each in ip_list:
        if each[2]=='HTTP':
            ips1.append(each[0]+':'+each[1])
        else:
            ips2.append(each[0]+':'+each[1])

#多页爬取
def main(n):
    for index in range(1,n+1):
        url = 'http://www.xicidaili.com/nn/'+str(index)
        print("正在爬取第" + str(index) + "页")
        getData(url)
        for_requests(ip_list)
    ips3 = zip(ips1, ips2)
    lis1 = list(ips3)
    lis2 = []
    for i in lis1:
        dict1 = {'HTTP': list(i)[0], 'HTTPS': list(i)[1]}
        lis2.append(dict1)
    ip_all = 'ips =' + str(lis2)
    ip_all = ip_all.replace('},', '},\n')
    print(ip_all)
    # 存储
    with open('ip_all.txt', 'w', encoding='utf-8')as f:
        f.write(ip_all)
main(3)