from Tkinter import *


class Test(Frame):
    def createWidgets(self):

	self.Gpanel = Frame(self, width='1i', height='1i',
			    background='green')

	# this line turns off the recalculation of geometry by masters.
	self.Gpanel.propagate(0)

	self.Gpanel.pack(side=LEFT)

	# a QUIT button
	self.Gpanel.QUIT = Button(self.Gpanel, text='QUIT', foreground='red',
				  command=self.quit)
	self.Gpanel.QUIT.pack(side=LEFT)

    def __init__(self, master=None):
	Frame.__init__(self, master)
	Pack.config(self)
	self.createWidgets()

test = Test()

test.master.title('packer demo')
test.master.iconname('packer')

test.mainloop()