title: Python set to list
body: <p>How can I convert a set to a list in Python? Using </p>
  
  <pre><code>a = set(["Blah", "Hello"])
  a = list(a)
  </code></pre>
  
  <p>doesn't work. It gives me:</p>
  
  <pre><code>TypeError: 'set' object is not callable
  </code></pre>