title: Cookie authentication with Python requests
body: <p>I am trying to mimic a user action on a site programmatically using Python <code>requests</code> API.
  to accomplish this programmatically the request must have user/pass authentication and also should pass few NVPs as Cookies in Header.
  To get the NVPs I initially make a dummy request and the server returns me the cookies.
  I acquire the required values from these cookies and use this to send the actual request.
  But the request doesn't succeeds and server complains I am not logged in.
  But if I use the cookie value from my browser the request succeeds.</p>
  
  <p>The the dummy request to programmatically acquire JSESSIONID,glide_user and glide_user_session params in cookie is</p>
  
  <pre><code>response = requests.get('http://example.com/make_dummy_get',auth=('username','pasword'))
  cookie_params = response.cookies.items()
  </code></pre>
  
  <p>below is the actual request</p>
  
  <pre><code>headers =  {
  'Host': 'example.com'
  ,'Connection': 'keep-alive'
  ,'Content-Length': 113
  ,'Cache-Control': 'max-age=0'
  ,'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
  ,'Origin': 'example.com'
  ,'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36'
  ,'Content-Type': 'application/x-www-form-urlencoded'
  ,'Referer': 'www.example.com/asdas/'
  ,'Accept-Encoding': 'gzip,deflate,sdch'
  ,'Accept-Language': 'en-US,en;q=0.8'
  ,'Cookie': 'JSESSIONID=B6F7371A11825472CAB0366A4DCDD8EFB; glide_user="SC:Z3Vlc3Q=:b890b38b7f000001121dbe81a08c413ca5"; glide_user_session="SC:Z3Vlc3Q=:b890b38b7f000001121dbe81a08c413ca5"'
  }
  
  form_data = {
  'param1': 'value1'
  ,'param2': 'value2'
  ,'param3': 'value3'
  }
  
  res = requests.post('http://example.com/make_post_request',auth=('username','pasword'),data=form_data,headers = headers)
  </code></pre>
  
  <p>It seems to me that the session created by my dummy request for some reason is getting closed 
  and Hence the second request is rejected and html response says I must login to access the requested resource. </p>
  
  <p>I did the same exercise with Java apache's HttpClient and ended with the same issue.What am I missing here to make the request succeed without any login or authentication issues?</p>