title: How to make a temporary output
body: <p>I want to print an output 'temporary', which is actually like this;</p>
  
  <pre><code>In[1]: print ("Hello")
  Out[1]: Hello #Out[1]
  #after 2 seconds for example
  Out[1]: Hi #Still Out[1]
  </code></pre>
  
  <p>Is there any way to do this? It's like a sentence displaying for 2 seconds after then at the <strong>same</strong> location, display another string. Can we delete last output and print something else on the same line?</p>