title: What does 'u' mean in a list?
body: <p>This is the first time I've came across this. Just printed a list and each element seems to have a <code>u</code> in front of it i.e.        </p>
  
  <pre><code>[u'hello', u'hi', u'hey']
  </code></pre>
  
  <p><strong>What does it mean and why would a list have this in front of each element?</strong></p>
  
  <p>As I don't know how common this is, if you'd like to see how I came across it, I'll happily edit the post.</p>