title: Shuffle position of elements in a list
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/976882/shuffling-a-list-of-objects-in-python">Shuffling a list of objects in python</a>  </p>
  </blockquote>
  
  
  
  <p>IF I have a list:</p>
  
  <blockquote>
    <p>a = ["a", "b", "c", ..., "zzz"] </p>
  </blockquote>
  
  <p>how can I randomly shuffle its elements in order to obtain a list: </p>
  
  <blockquote>
    <p>b = ["c", "zh", ...]</p>
  </blockquote>
  
  <p>without consuming a lot of the system's resources?</p>