I can not get the whole url when the server redirect me by using urllib2.urlopen(url).geturl()

Question

For Example, I can only get 'http://www.stackoverflow.com' if the whole url is 'http://www.stackoverflow.com?key=value&key1=value1'.

Answer 1

urllib2 does not strip the query string after a redirect:

>>> import urllib2
>>> r = urllib2.urlopen('http://httpbin.org/redirect-to?url=http://example.com/%3Ffoo=bar')
>>> r.geturl()
'http://example.com/?foo=bar'

Perhaps you are using a website that redirects you again on requests with a query string?

You could use the requests library instead; you can either disable redirects altogether, or you can introspect the history of redirections:

>>> import requests 
>>> r = requests.get('http://httpbin.org/relative-redirect/4')
>>> r.history
[<Response [302]>, <Response [302]>, <Response [302]>, <Response [302]>]
>>> r.history[2].url
u'http://httpbin.org/relative-redirect/2'