安全合规Python爬虫urllib-阿里云

【安全合规】python爬虫从0到1 - urllib中的异常 urllib中的异常处理在我们写爬虫程序时，若出现url中的错误，那么我们就无法爬取我们想要的内容，对此，我们引入了urllib中的异常处理。（一）url的组成部分URL由6个部分组成：eg：协议（http/https）主机（www.baidu......

【安全合规】python爬虫从0到1 -urllib_请求对象的定制（反爬策略）请求对象的定制下面我们来一起学习一下urllib中请求对象的定制。1.UA介绍UA（user agent）中文名为用户代理，它是一个特殊字符串头，使得服务器能够识别客户使用的操作系统及版本，cpu类型，浏览器及版本，浏览器内核，浏览器渲染引擎，浏览器语言，浏......

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