The Tkinter app works good after deployment with Pyinstaller,
but it opens 2 windows: .exe and app (tkinter container).
Any ideas? how to fix it?
I'm not sure I understand completely but you may want to try saving the file as .pyw vs .py before making it an executable. you may be seeing the console running.
Pyinstaller: It works, but .exe window and App Window is separated. Any ideas?