Day 18, Bug Fixing Exercise 1

Explanation

Lines 32-35 were

    feet = float(values["feet"])

    inches = float(values["inches"])

    result = convert(feet, inches)

    window["output"].update(value=f"{result} m", text_color="white") 

but they should be

     try:

        feet = float(values["feet"])

        inches = float(values["inches"])

        result = convert(feet, inches)

        window["output"].update(value=f"{result} m", text_color="white")

    except ValueError:

        sg.popup("Please provide two numbers.", font=("Helvetica", 20))

We use an exception block here to display a popup window if a value error occurs.