How to upgrade 1-click installer to Python 3 and newer version of Django?

So I am using the 1-click installer for Django, but found out is still using Python 2.7.6 and Django 1.6.1. Instead I want to use Python 3.x, but how do I do that?

I reviewed the article below, but again it focuses on Python 2.x:

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-django-with-postgres-nginx-and-gunicorn

The 1-click article about Django had some tiny bit of Python 3 information in the comment, but not enough for me to figure out what to do:

https://www.digitalocean.com/community/tutorials/how-to-use-the-django-one-click-install-image

It is kind of baffling that there seems to be so little information about Python 3.x still and that so far I only found Heroku to have it ready to go. Any help would be much appreciated!