title: Shifting Cells values in Python
body: <p>I have the following DataFrame:</p>
  
  <p><a href="https://i.stack.imgur.com/GqqDA.png" rel="nofollow noreferrer">SampleTable</a></p>
  
  <p>Hence the header of the table I imported is divided in two cells I need to shift the cells of the first two columns to shift up. And then to shift the 3 and 4 up. For it to look like this:</p>
  
  <p><a href="https://i.stack.imgur.com/6Ea4F.png" rel="nofollow noreferrer">What I need</a></p>
  
  <p>I have tried </p>
  
  <pre><code>df.at[1,'x'] = None
  </code></pre>
  
  <p>But that just deletes de value without shifting any cell.</p>
  
  <p><a href="https://i.stack.imgur.com/TXHM9.png" rel="nofollow noreferrer">What I get</a></p>