title: hex string to character in python
body: <p>I have a hex string like: </p>
  
  <pre><code>data = "437c2123"
  </code></pre>
  
  <p>I want to convert this string to a sequence of characters according to the ASCII table.
  The result should be like:  </p>
  
  <pre><code>data_con = "C|!#"
  </code></pre>
  
  <p>Can anyone tell me how to do this?</p>