I have a Django 1.5, Python 2.7 site running under Apache with mod_wsgi on a CentOS 6.4 server.
I have rebuilt this site using Django 1.6 and Python 3.3. Deploying
As has been mentioned, mod_wsgi has not been compiled for python 3. One option is to use Software Collections and/or go with nginx, and "pip install uwsgi" which saves a lot of compiling and running custom packages.