title: ImportError: cannot import name reverse_lazy
body: <p>I'm very new to python and trying to run a piece of Django code on my system, but I'm running into this problem.</p>
  
  <pre><code>$ python manage.py runserver
  Running in development mode.
  Traceback (most recent call last):
    File "manage.py", line 11, in &lt;module&gt;
      import settings
    File "/Users/Kinnovate/Desktop/fsdjango/platformsite/settings.py", line 321, in &lt;module&gt;
      from django.core.urlresolvers import reverse_lazy
  ImportError: cannot import name reverse_lazy
  </code></pre>
  
  <p>I'm using python 2.7. How do I fix this?</p>