Home > Backend Development > Python Tutorial > Python urlopen()函数 示例分享

Python urlopen()函数 示例分享

WBOY
Release: 2016-06-16 08:43:41
Original
1279 people have browsed it

好了,废话少说,我们先看看几个示例吧

一、打开一个网页获取所有的内容

复制代码 代码如下:

from urllib import urlopen
doc = urlopen("http://www.baidu.com").read()
print doc

二、获取Http头

复制代码 代码如下:

from urllib import urlopen
doc = urlopen("http://www.baidu.com")
print doc.info()
print doc.info().getheader('Content-Type')

三、使用代理

1. 查看环境变量

复制代码 代码如下:

print ""n".join(["%s=%s" % (k, v) for k, v in os.environ.items()])
print os.getenv("http_proxy")

2. 设置环境变量

复制代码 代码如下:

import os
os.putenv("http_proxy", "http://proxyaddr:")

3. 使用代理

复制代码 代码如下:

# Use http://www.someproxy.com:3128 for http proxying
proxies = {'http': 'http://www.someproxy.com:3128'}
filehandle = urllib.urlopen(some_url, proxies=proxies)
# Don't use any proxies
filehandle = urllib.urlopen(some_url, proxies={})
# Use proxies from environment - both versions are equivalent
filehandle = urllib.urlopen(some_url, proxies=None)
filehandle = urllib.urlopen(some_url)
Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template