from Tkinter import * def filemenu(): filewin = Toplevel(root) fileclose = Button(filewin, text="Close Application") fileclose.config(command=root.quit) fileclose.pack() root = Tk() menubar = Menu(root) menubar.add_command(label="File", command=filemenu) menubar.add_command(label="Help") root.config(menu=menubar) root.mainloop()