# Tk_chgbtncolorbind2.py

# Tk_chgbtncolorbind2.py -- proper exit proceedure added

from Tkinter import *

root = Tk()
myParent = root  ### (7)
myContainer1 = Frame(root)
myContainer1.pack()

def button1Click(event):    ### (3)
    if button1["background"] == "green": ### (4)
        button1["background"] = "yellow"
    else:
        button1["background"] = "green"

def button2Click():  ### (5)
    myParent.destroy()     ### (6)

button1 = Button(myContainer1)
button1.configure(text=" Change Color ", background="green")
button1.pack(side=LEFT)
button1.bind("<Button-1>", button1Click) ### (1)

button2 = Button(myContainer1, command=button2Click)
button2.configure(text=" Exit ", background="red")
button2.pack(side=RIGHT)

root.mainloop()