Handling Authentication Retrieving a Image from authenicated website Via urllib2 - image

Question

I am trying to make a small API that logs into a internal monitoring tool via web and retrieves images on pages that I specify using the login credentials I specify. It's not passing any authentication to the last section after it has already built the URL. After the URL is built, it is put into variable y. I then attempt to open y and save it, that is where the authentication problem is happening. Please scroll down for examples.
import urllib
import urllib2
import lxml, lxml.html
ID = raw_input("Enter ID:")
PorS = raw_input("Enter 1 for Primary 2 for Secondary:")
base_link = 'http://statseeker/cgi/nim-report?rid=42237&command=Graph&mode=ping&list=jc-'
dash = '-'
end_link = '&tfc_fav=range+%3D+start_of_today+-+1d+to+now%3B&year=&month=&day=&hour=&minute=&duration=&wday_from=&wday_to=&time_from=&time_to=&tz=America%2FChicago&tfc=range+%3D+start_of_today+-+1d+to+now%3B&rtype=Delay&graph_type=Filled&db_type=Average&x_step=1&interval=60&y_height=100&y_gridlines=5&y_max=&y_max_power=1&x_gridlines=on&legend=on'
urlauth = base_link + jConnectID + dash + jConnectPorS + end_link
print urlauth
realm = 'statseeker'
username = 'admin'
password = '*****'
auth_handler = urllib2.HTTPBasicAuthHandler()
auth_handler.add_password(realm, urlauth, username, password)
opener = urllib2.build_opener(auth_handler)
urllib2.install_opener(opener)
data = opener.open(urlauth).read()
html = lxml.html.fromstring(data)
imgs = html.cssselect('img.graph')
for x in imgs:
y = 'http://statseeker%s' % (x.attrib['src'])
g = urllib2.urlopen(y).read()
urllib2.urlopen(test.jpg, 'wb').write(g)
print 'http://statseeker%s' % (x.attrib['src'])
with open('statseeker.html', 'a') as f:
f.write(y)
Result:
C:\Users\user\Documents\Scripting>python test.py
Enter ID:4050
Enter 1 for Primary 2 for Secondary:1
http://statseeker/cgi/nim-report?rid=42237&command=Graph&mode=ping&list=jc-4050-
1&tfc_fav=range+%3D+start_of_today+-+1d+to+now%3B&year=&month=&day=&hour=&minute
=&duration=&wday_from=&wday_to=&time_from=&time_to=&tz=America%2FChicago&tfc=ran
ge+%3D+start_of_today+-+1d+to+now%3B&rtype=Delay&graph_type=Filled&db_type=Avera
ge&x_step=1&interval=60&y_height=100&y_gridlines=5&y_max=&y_max_power=1&x_gridli
nes=on&legend=on
Traceback (most recent call last):
File "JacksonShowAndSave.py", line 35, in <module>
g = urllib2.urlopen(y).read()
File "C:\Python27\lib\urllib2.py", line 127, in urlopen
return _opener.open(url, data, timeout)
File "C:\Python27\lib\urllib2.py", line 410, in open
response = meth(req, response)
File "C:\Python27\lib\urllib2.py", line 523, in http_response
'http', request, response, code, msg, hdrs)
File "C:\Python27\lib\urllib2.py", line 448, in error
return self._call_chain(*args)
File "C:\Python27\lib\urllib2.py", line 382, in _call_chain
result = func(*args)
File "C:\Python27\lib\urllib2.py", line 531, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 401: Authorization Required
C:\Users\user\Documents\Scripting>
How do I fix these errors to pass the Authentication to any web page opened on that website? I thought that any urlopen request would use the same authentication as above.
The Section that is Failing:
y = 'http://statseeker%s' % (x.attrib['src'])
g = urllib2.urlopen(y).read()
urllib2.urlopen(test.jpg, 'wb').write(g)
print 'http://statseeker%s' % (x.attrib['src'])
with open('statseeker.html', 'a') as f:

Answer 1

I built another auth handler for the request:
auth_handler2 = urllib2.HTTPBasicAuthHandler()
auth_handler2.add_password(realm, y, username, password)
opener2 = urllib2.build_opener(auth_handler2)
urllib2.install_opener(opener2)
link = urllib2.Request(y)
response = urllib2.urlopen(link)
output = open('out2.jpg','wb')
output.write(response.read())
output.close()