#!/usr/bin/python

from Tkinter import *   	#This interface allow us to draw windows


def DrawList():
	plist = ['Liz','Tom','Chi']

	for item in plist:
		listbox.insert(END,item);
		
	
root = Tk()					#This creates a window, but it won't show up

listbox = Listbox(root)
button = Button(root,text = "press me",command = DrawList)

button.pack()
listbox.pack()				#this tells the listbox to come out
root.mainloop()				#This command will tell the window come out