title: Django signals file, cannot import model names
body: <p>I have such file order:</p>
  
  <pre><code>project/
      app/
          models.py
          signals.py
  </code></pre>
  
  <p>I am keeping signals inside signals.py as it should be. and at the top of the signals.py file, I include myapp models as I do queries in these signals with </p>
  
  <pre><code>from myproject.myapp.models import Foo
  </code></pre>
  
  <p>However it doesnt seem to find it, as I run the server or validate from manage.py, it gives this error:</p>
  
  <pre><code>   from myproject.myapp.models import Foo
  ImportError: cannot import name Foo
  </code></pre>
  
  <p>I am using Django 1.2.1.</p>