title: Consecutive requests with python Requests.Session() not working
body: <p>I was trying to do this,</p>
  
  <pre><code>import requests
  s=requests.Session()
  login_data = dict(userName='user', password='pwd')
  ra=s.post('http://example/checklogin.php', data=login_data)
  print ra.content
  print ra.headers
  ans = dict(answer='5')
  f=s.cookies
  r=s.post('http://example/level1.php',data=ans,cookies=f)
  print r.content
  </code></pre>
  
  <p>But the second post request returns a 404 error, can someone help me why ?</p>