[Thasaidon]

Originally Posted by Doitsu

import tkinter.ttk as tkinter_ttk	#Essential for ttk. commands

to:

import tkinter.ttk as ttk	#Essential for ttk. commands

If you encounter other problems, replace the same line in all other .py files in that folder.

That cured it Doitsu. Thank you very much.

I must have done this in the past but had forgotten all about doing it.

I looked through the other py files abd spotted why the Resize Image function never worked. Apparently it needs the Pillow graphics library to be installed. Something I had not noticed before.