I was trying to use the django-crowdsourcing for an app that I was trying to put together I kept getting this error:
TypeError: can’t compare offset-naive and offset-aware datetimes
It turns out that there is a new concept for Django 1.4 timezones. To fix the problem you need to install some python libraries and replace use of the standard python datetime object.
terminal% pip install pytz
from django.utils import timezone