title: Python - extract lines between multiple instances of the same delimiter
body: <p>I have a file like this</p>
  
  <pre><code>===
  aa
  bb
  ===
  aa
  cc
  dd
  ==
  11
  </code></pre>
  
  <p>I need to extract the lines between the "===" and put them in different variables (a list maybe).</p>
  
  <p>Can you please help me?
  Thank you</p>