Hello liebn0r! Unfortunately, there does not appear to be Python 3 equipment; however, you should still be able to run the application using Passenger. More information on this can be found here:
You'll need to enable the Application Manager in the proper Feature List to access it in cPanel. We've published an article that outlines the process for enabling the Application Manager here:
Thanks for that clarification. And to be sure, is the account in question also assigned to a package that utilizes the default feature list as shown in the screenshot above?