from tkinter import*
import random
self.tk.resizable(0,0)
        self.tk.wm_attributes("-topmost", 1)
        self.canvas = Canvas(self.tk, width=500, height=500,  highlightthickness=0)
        self.canvas.pack()
        self.tk.update()
        self.canvas_height = 500
        self.canvas_width = 500
        self.bg = PhotoImage(file="background.gif")
        w = self.bg.width
        h = self.bg.height
        for x in range (0,2):
            for y in range (0,4):
                self.canvas.create_image(x*w, y*h, image=self.bg, anchor='nw')
        self.sprites = [ ]
        self.running = True

    def mainloop(self):
        while 1:
            if self.running == True:
                for sprite in self.sprites:
                    sprite.move()
            self.tk.update_idletasks
            self.tk.update()
            time.sleep(0.01)
            
                                         
        
