removed the s = int(s) from the else clause. Added a comment to that effect.
added the try/except code; didn't work as I'd expected. I think I need most of my code INSIDE the try block. I'll try it! :-)
Got the try/except block to work. Gonna pretty it up JUST a bit with an extra print function
Prettification succedded. Now a COUPLE more UI tweaks
UI tweaks done. For now.
updated some of my comments after completing some design ideas.