title: List of tuples to dictionary
body: <p>Here's how I'm currently converting a list of tuples to dictionary in Python:</p>
  
  <pre><code>l = [('a',1),('b',2)]
  h = {}
  [h.update({k:v}) for k,v in l]
  &gt; [None, None]
  h
  &gt; {'a': 1, 'b': 2}
  </code></pre>
  
  <p>Is there a better way?  It seems like there should be a one-liner to do this.</p>