title: print(".",end="") as a poor progress bar, not working
body: <p>It is not the first time I try to do a cheap progress bar.
  It's only to show there's some activity going on, but not polluting too much the output terminal screen.</p>
  
  <p>I always re-try this simple:</p>
  
  <pre><code>print(".",end="")
  </code></pre>
  
  <p>I wonder why it only output at the end ? I mean, it will only output at the end of my script, or when another operation will output to screen, after the long long loop is finished.
  Is there a way to make it output to screen any time print is called ?</p>