Sorry, I feel like I wasted people’s time… I commented out the line in main.py, exported and installed (instead of running from Builder) and it worked. I got the ‘£’ sign.
Everything works, actually. I’m pleasantly surprised!
Running from Builder…
I did try locale.setlocale(locale.LC_ALL, '') but it gave the ‘$’ sign still.
When I get that error the app won’t even start. If I set it to ‘C’ it starts and stays running but I get the error ValueError: Currency formatting is not possible using the 'C' locale.
Thank you for the replies.