def add_user_agent(self, user_agent): if user_agent and user_agent not in self.bloom_filter: self.bloom_filter.add(user_agent) self.generated_user_agents.append(user_agent) return True return False if __name__ == "__main__": generator = UserAgentGenerator() num_agents_to_generate =...
headers= {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36''(KHTML, like Gecko) Chrome/51.0.2704.63 Safari/537.36'} self.p.send(None)#第一回send的值必须是Noneprint'GET'+self.urlyieldhtml= requests.get(self.url, headers=headers).text time.sleep(2) self.p.send(htm...
# 先打开登录首页,获取部分cookie url = "https://passport.cnblogs.com/user/signin" headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0" } # get方法其它加个ser-Agent就可以了 s = requests.session() r = s.get(url, headers=headers,verif...
Get: http://httpbin.org/uuid Get: http://httpbin.org/user-agent53bytes received from http://httpbin.org/uuid.40bytes received from http://httpbin.org/user-agent.31bytes received from http://httpbin.org/ip. 从结果看,3个网络操作是并发执行的,而且结束顺序不同,但只有一个线程。 总结 至此Py...
python对用在generator中的yield可以一定程度上实现协程。通过yield方式转移执行权。 功能 进程:能够完成多任务,比如在一台电脑上能够同时运行多个QQ 线程:能够完成多任务,比如一个QQ中的多个聊天窗口 区别 一个程序至少有一个进程,一个进程至少有一个线程。
url="https://passport.cnblogs.com/user/signin"headers={"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0"}#get方法其它加个ser-Agent就可以了 s=requests.session()r=s.get(url,headers=headers,verify=False)print s.cookies ...
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36',} #下载登录页面的图片 def download_code(s):url = 'https://so.gushiwen.org/user/login.aspx?from=http://so.gushiwen.org/user/collect.aspx'r =...
BOT_NAME = 'cartoon' SPIDER_MODULES = ['cartoon.spiders'] NEWSPIDER_MODULE = 'cartoon.spiders' # Crawl responsibly by identifying yourself (and your website) on the user-agent #USER_AGENT = 'cartoon (+http://www.yourdomain.com)' # Obey robots.txt rules ROBOTSTXT_OBEY = False ITEM_PI...
很多网站都会对Headers的User-Agent进行检测,还有一部分网站会对Referer进行检测(一些资源网站的防盗链就是检测Referer)。如果遇到了这类反爬虫机制,可以直接在爬虫中添加Headers,将浏览器的User-Agent复制到爬虫的Headers中;或者将Referer值修改为目标网站域名。对于检测Headers的反爬虫,在爬虫中修改或者添加Headers就能很好...
{ 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'} data = { '__VIEWSTATE': '/wEPDwUKMTM4NTE3OTkzOWRkP4hmXYtPPhcBjbupZdLOLfmeTK4=', '__VIEWSTATEGENERATOR': 'CA0B0334', '__EVENTVALIDATION': '/...