urllib.request.urlopen(url) with Authentication

You're using HTTP Basic Authentication:

import urllib2, base64request = urllib2.Request(url)base64string = base64.b64encode('%s:%s' % (username, password))request.add_header("Authorization", "Basic %s" % base64string)   result = urllib2.urlopen(request)

So you should base64 encode the username and password and send it as an Authorization header.

Have a look at the HOWTO Fetch Internet Resources Using The urllib Package from the official docs:

# create a password managerpassword_mgr = urllib.request.HTTPPasswordMgrWithDefaultRealm()# Add the username and password.# If we knew the realm, we could use it instead of None.top_level_url = "http://example.com/foo/"password_mgr.add_password(None, top_level_url, username, password)handler = urllib.request.HTTPBasicAuthHandler(password_mgr)# create "opener" (OpenerDirector instance)opener = urllib.request.build_opener(handler)# use the opener to fetch a URLopener.open(a_url)# Install the opener.# Now all calls to urllib.request.urlopen use our opener.urllib.request.install_opener(opener)

With urllib3 :

import urllib3http = urllib3.PoolManager()myHeaders = urllib3.util.make_headers(basic_auth='my_username:my_password')http.request('GET', 'http://example.org', headers=myHeaders)