title: What is this AttributeError in django mongodb, and how do I prevent this?
body: <p>I keep running into this error for both .raw_query and .filter,</p>
  
  <p>it happens when I do a simple query like this : </p>
  
  <p>Tried <code>google</code> but did not have much luck except <a href="https://groups.google.com/forum/?fromgroups=#!topic/django-non-relational/9buyMWEHLkc%29" rel="nofollow">this</a> .</p>
  
  <p>Is that the same issue? And how do I update the schema to prevent this from happening? </p>
  
  <pre><code>from app.models import Poll
  import Datetime
  
  polls = Poll.objects.filter(created_at__gte=datetime.datetime(2013,5,1))
  for p  in polls: 
      print p
  </code></pre>
  
  <p>Error: </p>
  
  <pre><code>AttributeError: 'unicode' object has no attribute 'iteritems'
  </code></pre>