title: How to show an Image with pillow and update it?
body: <p>I want to show an image recreated from an img-vector, everything fine.
  now I edit the Vector and want to show the new image, and that multiple times per second.
  My actual code open tons of windows, with the new picture in it.</p>
  
  <pre><code>loop
  {
      rearr0 = generateNewImageVector()
      reimg0 = Image.fromarray(rearr0, 'RGB')
      reimg0.show()
  }
  </code></pre>
  
  <p>What can I do to create just one Window and always show just the new image?</p>