from Tkinter import *

# This is a program that makes a simple two button application


class New_Button(Button):
    def callback(self):
	print self.counter
	self.counter = self.counter + 1
    
def createWidgets(top):
    f = Frame(top)
    f.pack()
    f.QUIT = Button(f, {'text': 'QUIT', 
			    'fg': 'red', 
			    'command': top.quit})
	
    f.QUIT.pack({'side': 'left', 'fill': 'both'})


    # a hello button
    f.hi_there = New_Button(f, {'text': 'Hello'})
    # we do this on a different line because we need to reference f.hi_there
    f.hi_there.config({'command' : f.hi_there.callback})
    f.hi_there.pack({'side': 'left'})
    f.hi_there.counter = 43



root = Tk()
createWidgets(root)
root.mainloop()