title: 100x100 image with random pixel colour
body: <p>I'm trying to make a <code>100x100</code> image with each pixel being a different random colour, like this example:</p>
  
  <p><img src="https://i.stack.imgur.com/6CecU.jpg" alt="enter image description here"></p>
  
  <p>I've tried to use <code>matplotlib</code> but I'm not having much luck. Should I maybe be using PIL?</p>