title: Handling all but one exception
body: <p>How to handle all but one exception?</p>
  
  <pre><code>try:
      something
  except &lt;any Exception except for a NoChildException&gt;:
      # handling
  </code></pre>
  
  <p>Something like this, except without destroying the original traceback:</p>
  
  <pre><code>try:
      something
  except NoChildException:
      raise NoChildException
  except Exception:
      # handling
  </code></pre>