Python:在urllib2中禁用http_proxy [英] Python: Disable http_proxy in urllib2

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问题描述

我正在使用代理集作为环境变量(export http_proxy = example.com)。对于一个使用urllib2的调用,我需要暂时禁用这个,即。取消设置http_proxy。我已经尝试了文档和interwebs中提出的各种方法,但到目前为止还没有取消设置代理。到目前为止,我试过:

 #不工作
req = urllib2.Request('http:// www.google.com')
req.set_proxy(无,无)
urllib2.urlopen(req)

#也不工作
urllib.getproxies = lambda x = None:{}


解决方案

urllib2文档建议以下内容应该有效。这是您尝试过的方法之一吗?

  import urllib2 

proxy_handler = urllib2.ProxyHandler {})
opener = urllib2.build_opener(proxy_handler)
page = opener.open('http://www.google.com')


I am using a proxy set as an environment variable (export http_proxy=example.com). For one call using urllib2 I need to temporarily disable this, ie. unset the http_proxy. I have tried various methods suggested in the documentation and interwebs, but so far have been unable to unset the proxy. So far I have tried:

# doesn't work
req = urllib2.Request('http://www.google.com')
req.set_proxy(None,None)
urllib2.urlopen(req)

# also doesn't work
urllib.getproxies = lambda x = None: {}

解决方案

The urllib2 documentation suggests the following should work. Is it one of the approaches you have tried?

import urllib2

proxy_handler = urllib2.ProxyHandler({})
opener = urllib2.build_opener(proxy_handler)
page = opener.open('http://www.google.com')

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