I'm developing an python3 application that only uses a handheld scanner for input. I need to prompt the user for input and want to use a nice window to do it. When I look at tkinter, it appears that you need to have a mouse to close the window to click on the "X" or on a button.
Or is there another option outside of tkinter
Note: this answer assumes you are using a barcode scanner, although it could be an image scanner. Unfortunately, the question is unclear.
Tkinter seems to be the best option, as you can use use this code:
self.root.destroy()
to close the window. When run, the Tkinter windows will be closed without requiring mouse input. Also, you can just run the code you want to execute (with the button) when the scanner is interaced with using keypress detection in python. Most barcode scanners are detected as keyboards and most come with an 'enter' barcode in the manual that sends a keypress of the enter key to the system.
