Proxy authentication error - python

Question

Hi I have written a few simple lines of code. But I seem to be getting a Authentication error. Can anyone please suggest , what credentials are being looked for python here ?

Code:

import urllib2
response = urllib2.urlopen('http://google.com')
html = response.read()

Error

urllib2.HTTPError: HTTP Error 407: Proxy Authentication Required

PS: I do not have acces to IE -->Advanced settings or regedit

As advised I've modified the code :

import urllib2
proxy_support = urllib2.ProxyHandler({'http':r'http://usename:psw@IP:port'})
auth = urllib2.HTTPBasicAuthHandler()
opener = urllib2.build_opener(proxy_support, auth, urllib2.HTTPHandler)
urllib2.install_opener(opener)
response = urllib2.urlopen('http://google.com')
html = response.read()

Also I have created two environment variables :

HTTP_PROXY = http://username:[email protected]
HTTPS_PROXY = https://username:[email protected]

But still getting the error .

urllib2.HTTPError: HTTP Error 407: Proxy Authentication Required

possible duplicate of Proxy Authentication error in Urllib2 (Python 2.7) — ranendra
– ranendra, Commented Aug 20, 2013 at 6:00

Community · Accepted Answer · 2017-05-23 11:51:38Z

5

There are multiple ways to work-around your problem. You may want to try defining an environment variables with the names http_proxy and https_proxy with each set to you proxy URL. Refer to this link for more details.

Alternatively, you may want to explicitly define a ProxyHandler to work with urllib2 while handling requests through the proxy. The link is already present within the comment to your query; however I am including it here for the sake of completeness.

Hope this helps

edited May 23, 2017 at 11:51

CommunityBot

11 silver badge

answered Aug 20, 2013 at 6:08

Prahalad Deshpande

4,7871 gold badge23 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

misguided Over a year ago

where do i get case1: username/password/proxyserver.domain.com

Prahalad Deshpande Over a year ago

You either set the _proxy variables or you use the ProxyHandler. I am not aware what happens if you do both

misguided Over a year ago

Didn't resolve the issue , but insights were helpful . Thanks.

sp1der Over a year ago

Please try stackoverflow.com/questions/18327654/…

sp1der · Accepted Answer · 2015-06-04 16:33:00Z

1

If your OS is windows and behind ISA proxy, urllib2 does not use any information about proxy; instead "Firewall Client for ISA server" automatically authenticates the user. That means we don't need to set http_proxy and https_proxy system environment variables. Keep it empty in ProxyHandler as following:

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

u = urllib2.urlopen('your-url-goes-here')
data = u.read()

edited Jun 4, 2015 at 16:33

answered Jun 3, 2015 at 17:29

sp1der

1763 bronze badges

Comments

operaculus · Accepted Answer · 2016-08-05 07:09:27Z

-1

The error code and message seem that the username and password failed to pass the authentications of proxy servers.

The following code:

proxy_handler = urllib2.ProxyHandler({'http': 'usename:psw@IP:port'})
opener = urllib2.build_opener(proxy_handler)
urllib2.install_opener(opener)
response = urllib2.urlopen('http://google.com')
html = response.read()

should also works if the authentication is passed.

edited Aug 5, 2016 at 7:09

answered Aug 5, 2016 at 6:17

operaculus

12 bronze badges

Collectives™ on Stack Overflow

Proxy authentication error - python

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related