Hello,
In my last job we used tkinter to create a GUI and while I was learning at home tkinter - because I was not familiar with this tool - I ended up creating a micro-framework to manage tkinter as a single page application, a.k.a tkinter_spa.
https://pypi.org/project/tkinter-spa/1.0.0/
The framework is compatible with python 3.6 and provides additional features such as a Surveyor able to explore any tkinter application following a sequence of instructions => check its final demo Testing with tkinter_spa - tkinter_spa documentation
There is also a debugging tool mimicking a tree command, but for tkinter widgets => check print_widget_tree in the documentation.
If you have any feedback, they are welcome.