using a computer（Using an HTTP PROXY Python Stack Overflow）

You can do it even without the HTTP_PROXY environment variable. Try this sample:

import urllib2proxy_support = urllib2.ProxyHandler({"http":"http://61.233.25.166:80"})opener = urllib2.build_opener(proxy_support)urllib2.install_opener(opener)html = urllib2.urlopen("http://www.google.com").read()print html

In your case it really seems that the proxy server is refusing the connection.

Something more to try:

import urllib2#proxy = "61.233.25.166:80"proxy ="YOUR_PROXY_GOES_HERE"proxies ={"http":"http://%s"% proxy}url ="http://www.google.com/search?q=test"headers={User-agent:Mozilla/5.0}proxy_support = urllib2.ProxyHandler(proxies)opener = urllib2.build_opener(proxy_support, urllib2.HTTPHandler(debuglevel=1))urllib2.install_opener(opener)req = urllib2.Request(url,None, headers)html = urllib2.urlopen(req).read()print html