         newwin = tk.Toplevel(root)         newwin.geometry("000x000")         label = tk.Label(newwin, text="Classification", bg="blue", fg="white",height=0, font=("bold", 00))         label.pack()         canvas = tk.Canvas(newwin, height=000, width=000)         canvas.pack()         my_image = tk.PhotoImage(file=a, master=root)         canvas.create_image(000, 000, image=my_image)         newwin.mainloop()      def browse(self):         """ Browses a .png file or all files and then puts it on the entry.         """         