GUI Tk Python

from Tkinter import *           
from tkMessageBox import *      
class NewMenuDemo(Frame):                 
    def __init__(self, parent=None):      
        Frame.__init__(self, parent)      
        self.pack(expand=YES, fill=BOTH)
        self.createWidgets()              
        self.master.title("Toolbars and Menus")
        self.master.iconname("tkpython")       
    def createWidgets(self):
        self.makeMenuBar()
        self.makeToolBar()
        L = Label(self, text='Menu and Toolbar Demo')
        L.config(relief=SUNKEN, width=40, height=10, bg='white')
        L.pack(expand=YES, fill=BOTH)
    def makeToolBar(self):
        toolbar = Frame(self, cursor='hand2', relief=SUNKEN, bd=2)
        toolbar.pack(side=BOTTOM, fill=X)
        Button(toolbar, text='Quit',  command=self.quit    ).pack(side=RIGHT)
        Button(toolbar, text='Hello', command=self.greeting).pack(side=LEFT)
    def makeMenuBar(self):
        self.menubar = Menu(self.master)
        self.master.config(menu=self.menubar)  
        self.fileMenu()
        self.editMenu()
#        self.imageMenu()
    def fileMenu(self):
        pulldown = Menu(self.menubar)
        pulldown.add_command(label='Open...', command=self.notdone)
        pulldown.add_command(label='Quit',    command=self.quit)
        self.menubar.add_cascade(label='File', underline=0, menu=pulldown)
    def editMenu(self):
        pulldown = Menu(self.menubar)
        pulldown.add_command(label='Paste',   command=self.notdone)
        pulldown.add_command(label='Spam',    command=self.greeting)
        pulldown.add_separator()
        pulldown.add_command(label='Delete',  command=self.greeting)
        pulldown.entryconfig(4, state=DISABLED)
        self.menubar.add_cascade(label='Edit', underline=0, menu=pulldown)
#    def imageMenu(self):
#        photoFiles = ('guido.gif', 'rntsoft.gif', 'rntsoft.gif') 
#        pulldown = Menu(self.menubar)
#        self.photoObjs = []
#        for file in photoFiles:
#            img = PhotoImage(file='../gifs/' + file)
#            pulldown.add_command(image=img, command=self.notdone)
#            self.photoObjs.append(img)   # keep a reference
#        self.menubar.add_cascade(label='Image', underline=0, menu=pulldown)
    def greeting(self): 
        showinfo('greeting', 'Greetings')
    def notdone(self):  
        showerror('Not implemented', 'Not yet available') 
    def quit(self):
        if askyesno('Verify quit', 'Are you sure you want to quit?'):
            Frame.quit(self)
if __name__ == '__main__':  NewMenuDemo().mainloop()  # if I'm run as a script