It's disappointing to say that infogami is not being developed any longer and has been this way for a while, the site is functional but sadly the source code isn't for modern python libraries.
The source code can be found here [infogami/infogami] which is located on Github.
This project was all started by "Aaron Swartz", and is going to be long remembered from his name and hard work put into the code.
- Here's the installation guide, [Installing Infogami]
- The source may not be any good but the site will still be available to use.