title: webob cookies
body: <p>I am not able to set cookies using following statements</p>
  
  <pre><code>        self.request.headers['Cookie'] = 'uniqueid = ',unique_identifier
          self.request.headers['Cookie'] = 'nickname = ',nickname
  </code></pre>
  
  <p>as 
       self.request.cookies </p>
  
  <p>is returning null dictionary in another request.</p>
  
  <p>environment is python on google app engine </p>