moving from tkinter to wxpython

[Barrowman]

As I am not sure of the syntax for such as

 print(f"Mp3 file for Leviticus is here: {self.BibleIndex['Old Testament']['Leviticus']['mp3']}") 

I decided to install python 3.6.
With Linux Mint at present depending on 3.5 I had to find a way to get 3.6 installed along with it, which I did.
Now I am still trying to figure out how to install wxpython for 3.6.
I have pip 3.6 installed but the wx install still fails. I have posted separately about this.
Of course it means that at the moment I cannot run your code.