moving from tkinter to wxpython

[Barrowman]

Yes, I tried the PlayAudio.py it gave no errors but also n sound.

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I used the Barrowman repository. I have just repeated the cloning and all the rest. The tabs work to change to different books. From each page within a particular book only the Index button works.
The OnClick function is as you have asked.
There is still no sound whatsoever.
There are no errors reported as it runs. My old code does produce sound.