title: Django upgrade from 1.7.1 to 1.9.2. ImportError: cannot import name 'importlib'
body: <p>I've just upgraded Django from 1.7.1 to 1.9.2. When I run the server I get:</p>
  
  <pre><code>from django.utils import importlib
  ImportError: cannot import name 'importlib'
  </code></pre>
  
  <p>I noticed that there is no <code>importlib.py</code> file inside <code>/lib/python3.4/site-packages/django/utils</code> like it used to be in the previous version. Has anyone fixed this issue?</p>