July 2017
Intermediate to advanced
398 pages
11h 54m
Chinese
Content preview from Python数据处理
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238
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第
11
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看到了吗？访问
URL
或服务（例如
Google
搜索）、得到响应，并读取响应都非常简单。
urllib
和
urllib2
都有其他请求方法，也能够添加头部信息、发送基本认证，以及组装更
加复杂的请求。
根据请求的复杂度，你还可以使用
requests
库（
http://docs.python-requests.org/en/latest/
）。
requests
使用
urllib
和
urllib2
，让复杂的请求更容易格式化和发送。如果你需要格式
化一个复杂的文件
post
请求（
http://docs.python-requests.org/en/latest/user/quickstart/#more-
complicated-post-requests
），或查看
session
（
http://docs.python-requests.org/en/latest/user/
quickstart/#cookies
）中还存留了什么
cookie
，或者检查响应状态码（
http://docs.python-
requests.org/en/latest/user/quickstart/#response-status-codes
），
requests
是一个很棒的选择。
在检查网络（或时间线）标签时，有些时候会发现一些使用特殊
HTTP
头
（
http://en.wikipedia.org/wiki/List_of_HTTP_header_fields
）、
cookies
或其他认
证方法的页面。你可以使用
urllib2 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.