How to use proxy_handler method in devtools-proxy

Best Python code snippet using devtools-proxy_python

xicidai_spider.py

Source:xicidai_spider.py Github

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1#coding:utf82import urllib2,urllib3import cookielib4import re5import random6# 设置是否开启代理池 0: 花钱代理 1 使用免费代理 2 不实用代理7proxy_switch = 18max_retry = 59# 创建cookiehandler10cookie = cookielib.CookieJar()11cookie_handler = urllib2.HTTPCookieProcessor(cookie)12# 创建代理handler13# proxy_handler = urllib2.ProxyHandler({'http' : '120.27.125.149:16816'})14def getProxyHandler(proxy_list):15 if proxy_switch == 0:16 proxy_handler = urllib2.ProxyHandler(17 {18 'http' : 'http:/​/​1752570559:wd0p04kd@120.27.125.149:16816',19 'https' : 'http:/​/​1752570559:wd0p04kd@120.27.125.149:16816'20 }21 ) # 使用私密代理22 elif proxy_switch == 1:23 # 免费代理，从爬取的代理池中读取24 print '用免费代理'25 # with open('proxy.txt','r') as f:26 #27 # proxy_list = f.readlines() #从文件中读取的代理列表28 # print proxy_list29 # proxy_poll = [] # 代理池30 # for proxy in proxy_list:31 # res = proxy.split(' ')32 # proxy_poll.append( #向代理池中加入一个代理33 # {34 # 'http' : res[2].lower() + ':/​/​' + res[0] + ':' + res[1],35 # 'https' : res[2].lower() + ':/​/​' + res[0] + ':' + res[1],36 # }37 # )38 print proxy_list39 proxy_poll = [] # 代理池40 for proxy in proxy_list:41 res = proxy.split(' ')42 proxy_poll.append( #向代理池中加入一个代理43 {44 'http' : res[2].lower() + ':/​/​' + res[0] + ':' + res[1],45 'https' : res[2].lower() + ':/​/​' + res[0] + ':' + res[1],46 }47 )48 if proxy_poll: #如果有代理则随机 ，否则不实用代理49 proxy = random.choice(proxy_poll)50 else:51 proxy = {}52 print proxy53 proxy_handler = urllib2.ProxyHandler(proxy)54 else:55 proxy_handler = urllib2.ProxyHandler() # 使用私密代理56 return proxy_handler57def getOpener(proxy_handler):58 opener = urllib2.build_opener(proxy_handler)59 # urllib2.install_opener(opener) # urllib2.urlopen时候都用这个opener去发请求60 urllib2.install_opener(opener)61 opener.addheaders = [('User-Agent','Mozilla/​5.0 (Windows NT 6.1; WOW64) AppleWebKit/​537.36 (KHTML, like Gecko) Chrome/​56.0.2924.87 Safari/​537.36')]62 return opener63def getPage():64 base_url = 'http:/​/​www.xicidaili.com/​nn/​'65 # base_url = 'http:/​/​www.baidu.com/​s?wd=ip'66 # response = opener.open(base_url)67 # print response.read()68 # exit()69 start = raw_input('起始：')70 end = raw_input('结束：')71 with open('proxy.txt','r') as f:72 proxy_list = f.readlines() # 打开时候一定不能先清空73 with open('proxy.txt', 'w+') as f:74 for i in range(int(start), int(end)):75 fullurl = base_url + str(i)76 for i in range(max_retry): #循环去尝试open77 try:78 proxy_handler = getProxyHandler(proxy_list)79 opener = getOpener(proxy_handler)80 response = opener.open(fullurl,timeout=3)81 break82 except (urllib2.URLError,Exception) as e:83 response = None84 print str(e)85 if response is not None: # 多次尝试成功以后就进行html读取86 html = response.read()87 else:88 print '代理不可用，请检查！！'89 exit()90 # print html91 tr_pattern = re.compile(r'<tr.*?>.*?' + r'(?:<td.*?>(.*?)</​td>.*?)' * 10 + r'.*?</​tr>' ,re.S)92 tr_list = tr_pattern.findall(html)93 speed_pattern = re.compile(r'title="(.*?)"')94 for tr in tr_list:95 # 过滤响应小于2秒的96 res = speed_pattern.search(tr[6])97 speed = res.group(1)98 speed = speed.replace('秒','')99 # 存活期大于1天以上的100 if float(speed) < 2 and '天' in tr[8]:101 print 'crawling : %s' % tr[1]102 f.write("%s %s %s %s %s\n" % (tr[1],tr[2],tr[5],speed,tr[8],))103if __name__ == '__main__':104 getPage()...

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compat.py

Source:compat.py Github

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1# -*- coding: utf-8 -*-2# flake8: noqa3"""Python 2/​3 compatibility support."""4import sys5PY2 = sys.version_info[0] == 26PY3 = sys.version_info[0] == 37PY33 = sys.version_info[0:2] >= (3, 3)8if PY2:9 reload(sys)10 sys.setdefaultencoding('utf8')11 import urllib212 from urllib import urlencode13 from urllib2 import URLError14 from urllib2 import quote15 from urllib2 import unquote16 from urllib2 import urlopen17 from urlparse import parse_qsl18 from HTMLParser import HTMLParser19 def install_proxy(proxy_handler):20 """21 install global proxy.22 :param proxy_handler:23 :samp:`{"http":"http:/​/​my.proxy.com:1234", "https":"https:/​/​my.proxy.com:1234"}`24 :return:25 """26 proxy_support = urllib2.ProxyHandler(proxy_handler)27 opener = urllib2.build_opener(proxy_support)28 urllib2.install_opener(opener)29 def unescape(s):30 """Strip HTML entries from a string."""31 html_parser = HTMLParser()32 return html_parser.unescape(s)33 def unicode(s):34 """Encode a string to utf-8."""35 return s.encode('utf-8')36elif PY3:37 from urllib.error import URLError38 from urllib.parse import parse_qsl39 from urllib.parse import quote40 from urllib.parse import unquote41 from urllib.parse import urlencode42 from urllib.request import urlopen43 from urllib import request44 def install_proxy(proxy_handler):45 proxy_support = request.ProxyHandler(proxy_handler)46 opener = request.build_opener(proxy_support)47 request.install_opener(opener)48 def unicode(s):49 """No-op."""50 return s51 if PY33:52 from html.parser import HTMLParser53 def unescape(s):54 """Strip HTML entries from a string."""55 html_parser = HTMLParser()56 return html_parser.unescape(s)57 else:...

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test_proxy.py

Source:test_proxy.py Github

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1#coding=utf-82import urllib23#不使用代理4import urllib25response = urllib2.urlopen('http:/​/​101.201.175.89/​dist/​#/​login')6html = response.read()7print("#不使用代理")8print(html)9#使用代理访问10proxy_handler = urllib2.ProxyHandler({'http': '124.232.163.39:3128'})11opener = urllib2.build_opener(proxy_handler)12r = opener.open('http:/​/​101.201.175.89/​dist/​#/​login')13print("#使用代理")14print(r.read())15# read16# urllib2是Python标准库，功能很强大，只是使用起来稍微麻烦一点。在Python 3中，urllib2不再保留，迁移到了urllib模块中。urllib2中通过ProxyHandler来设置使用代理服务器。17#18# proxy_handler = urllib2.ProxyHandler({'http': '121.193.143.249:80'})19# opener = urllib2.build_opener(proxy_handler)20# r = opener.open('http:/​/​httpbin.org/​ip')21# print(r.read())22# 也可以用install_opener将配置好的opener安装到全局环境中，这样所有的urllib2.urlopen都会自动使用代理。23#24# urllib2.install_opener(opener)25# r = urllib2.urlopen('http:/​/​httpbin.org/​ip')26# print(r.read())27# 在Python 3中，使用urllib。28#29# proxy_handler = urllib.request.ProxyHandler({'http': 'http:/​/​121.193.143.249:80/​'})30# opener = urllib.request.build_opener(proxy_handler)31# r = opener.open('http:/​/​httpbin.org/​ip')...

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