title: ImportError: cannot import name simplejson. I am using django v1.8 and django-Select2 v4.3.1
body: <p>My error( command python manage.py runserver) - <strong>File "/Users/username/virtual-env/lib/python2.7/site-packages/jsonfield/fields.py", line 3, in 
      from django.utils import simplejson as json
  ImportError: cannot import name simplejson</strong></p>
  
  <p>I tried solutions from these two posts but they did not work in my case <a href="https://stackoverflow.com/questions/28048943/cannot-import-name-simplejson-after-installing-simplejson">Cannot import name simplejson - After installing simplejson</a>
  <a href="https://stackoverflow.com/questions/27855731/how-to-solve-the-importerror-cannot-import-name-simplejson-in-django">How to solve the ImportError: cannot import name simplejson in Django</a></p>