title: Remove u key from dictionary python
body: <p>How to exclude the key 'u' from below,</p>
  
  <pre><code>{u'{"auth":{"user_id":"2"},"data":{"collection":"master-services"}}': [u'']}
  </code></pre>
  
  <p>I need to get my dictionary like below,</p>
  
  <pre><code>{"auth":{"user_id":"2"},"data":{"collection":"master-services"}}
  </code></pre>