Python的一些常用知识

1、How to force urllib2 not to use a proxy

Here is an example to remove proxy settings for all requests:

proxy_handler = urllib2.ProxyHandler({})
opener = urllib2.build_opener(proxy_handler)
urllib2.install_opener(opener)

And here is an example for only one request:

proxy_handler = urllib2.ProxyHandler({})
opener = urllib2.build_opener(proxy_handler)
req = urllib2.Request('http://...')
r = opener.open(req)
result = r.read()

参考网址：http://www.decalage.info/en/python/urllib2noproxy