title: Python void/null function
body: <p>Python noob so I might be going about this the wrong way</p>
  
  <p>I want to use a try/except block to find if a value in a dict isn't set like</p>
  
  <pre><code>try:
      if entry['VALUE1'] == None: void()
      if entry['VALUE2'] == None: void()
  except KeyError:
      print "Values not Found"
  </code></pre>
  
  <p>Of course the 'void' function doesn't exist, is there anything I can do to get round this so that code will work properly</p>