#changeable_label.py
# Use a StringVar to create a changeable label
from Tkinter import *

# Hold onto a global reference for the root window
root = None

# Changeable text that will go inside the Label
myText = None

count = 0 # Click counter

def buttonPushed():
    global myText
    global count
    count += 1
    myText.set("Stop your clicking, it's already been %d times!" %(count))

    
def addTextLabel(root):
    global myText
    myText = StringVar()
    myText.set("")
    myLabel = Label(root, textvariable=myText)
    myLabel.pack()
    
def main():
    global root
    
    root = Tk()  # Create the root (base) window where all widgets go
   
    myButton = Button(root, text="Show Text",command=buttonPushed)
    myButton.pack()
    addTextLabel(root)
    root.mainloop() # Start the event loop

main()