#! /usr/local/bin/python

from Tkinter import *

class mainWin:

  def sendWinfo(self):
    print self.root.winfo_children()
    return None

  def __init__(self,root):
    self.root=root
    myMenubar = Menu(self.root)
    myMenu = Menu(myMenubar)
    myMenubar.add_cascade(label="No need to click me", menu=myMenu)
    self.root.configure(menu=myMenubar)
    b=Button(self.root,text="Please click me      ",command=self.sendWinfo)
    b.pack()
    return None

def main():
    root=Tk()
    mainWin(root)
    root.mainloop()

if __name__=="__main__":
  main()