Detecting user's installed Python/Tkinter packages during install of app

[Noble Bell]

I am thinking of writing a new mac and/or windows application using python 3.x and the tkinter gui toolkit. A question that I have is this..

If my application uses a version of python/tkinter that is not on the users computer will I be able to detect that during an install and automatically install the proper files silently?

Thanks in advance..

Noble