* [Python 2.5.4+ <http://www.python.org>](http://www.python.org/)
* [Django 1.3+ <http://www.djangoproject.com/>](http://www.djangoproject.com/)
* [django-mptt e734079+ <https://github.com/django-mptt/django-mptt/>](https://github.com/django-mptt/django-mptt/)
+ * (philo.contrib.penfield) [django-taggit 0.9.3+ <https://github.com/alex/django-taggit>](https://github.com/alex/django-taggit)
* (Optional) [django-grappelli 2.0+ <http://code.google.com/p/django-grappelli/>](http://code.google.com/p/django-grappelli/)
* (Optional) [south 0.7.2+ <http://south.aeracode.org/)](http://south.aeracode.org/)
* (Optional) [recaptcha-django r6 <http://code.google.com/p/recaptcha-django/>](http://code.google.com/p/recaptcha-django/)