title: Swapping two elements in Python
body: <p>I was watching a video where all of a sudden the instructor uses the given code to swap two elements of a list L: </p>
  
  <pre><code>L[suffix], L[i] = L[i], L[suffix]
  </code></pre>
  
  <p>What is the procedure undertaken inside for this method of swap? Is a new list formed? Or a tuple? Or a dictionary? Or something else???</p>