title: How to check if django form data is None, ' ' (empty string), or False
body: <pre><code>if form.data['first_name'] is None:
      return True
  else: 
     return False  
  </code></pre>
  
  <p>I'm trying to check if this first_name field is blank or "None". But if the field happens to be blank the following will return ( u'' ) along with false.  Any other solution for determining if this specific form field is blank or none? And why this happens?</p>