Python-сообщество

 from tkinter import *
 
WIDTH = 1200
HEIGHT = 400
 
root = Tk()
root.title("Ping-Pong v0.3")
 
c = Canvas(root, width=WIDTH, height=HEIGHT, background="#003300")
c.pack()
 
def ResolutionButton():
 
    global Resolution1200x
    Resolution1200x = Button(text='1200x400', command=Resolution1200xButton)
    Resolution1200x.place(relx=.5, rely=.4, anchor="c", height=30, width=150, bordermode=OUTSIDE)
 
    global Resolution1000x
    Resolution1000x = Button(text='1000x300', command=Resolution1000xButton)
    Resolution1000x.place(relx=.5, rely=.5, anchor="c", height=30, width=150, bordermode=OUTSIDE)
 
    global Resolution800x
    Resolution800x = Button(text='1000x200', command=Resolution800xButton)
    Resolution800x.place(relx=.5, rely=.6, anchor="c", height=30, width=150, bordermode=OUTSIDE)
 
    global ResolutionBack
    ResolutionBack = Button(text='Назад', command=ResolutionBackButton)
    ResolutionBack.place(relx=.5, rely=.7, anchor="c", height=30, width=150, bordermode=OUTSIDE)
 
def Resolution1200xButton():
    global WIDTH 
    WIDTH = 1200
    global HEIGHT
    HEIGHT = 400
    a = str(WIDTH) + "x" + str(HEIGHT)
    root.geometry(a)
 
def Resolution1000xButton():
    global WIDTH 
    WIDTH = 900
    global HEIGHT
    HEIGHT = 300
    a = str(WIDTH) + "x" + str(HEIGHT)
    root.geometry(a)