I am trying to connect to a webpage using urllib3. The code is provided below.

import urllib3
http=urllib3.PoolManager()
fields={'username':'abc','password':'xyz'}
r=http.request('GET',url,fields)

If we assume that url is some webpage which needs to be authenticated using username and password, am i using the right code to authenticate ?

I have did this using urllib2 very comfortably but i was not able to do the same thing using urllib3.

Many Thanks

Assuming you're trying to do Basic Authentication, then you need to put the username and password encoded in an Authorization header. Here's one way to do that using the urllib3.make_headers helper:

import urllib3

http = urllib3.PoolManager()
url = '...'
headers = urllib3.make_headers(basic_auth='abc:xyz')
r = http.request('GET', url, headers=headers)