In any Tkinter program, the first thing you need is a window. This window will act as a container for your app. This line brings the Tkinter library into your program. We give it the nickname tk so we ...

a = tkinter.Frame(pack, name='a', width=20, height=40, bg='red') b = tkinter.Frame(pack, name='b', width=50, height=30, bg='blue') c = tkinter.Frame(pack, name='c ...