# Tkinter programming without a class
 
from Tkinter import *
 
def say_hi():
    # function for hi_button action
    # show new text on the label
    hi_label.config(text="Hi there, everyone!")
 
 
# create the basic window
root = Tk()
 
frame = Frame(root)
frame.pack()
# specify button action with command=function
# foreground/fg is red to color text
q_button = Button(frame, text=" QUIT ", fg="red", command=root.destroy)
q_button.pack(side=LEFT)
 
hi_button = Button(frame, text=" Hello ", command=say_hi)
hi_button.pack(side=LEFT)
# width of label is in characters
hi_label = Label(frame, text=" Hello, world! ", bg='yellow', width=20)
hi_label.pack(side=LEFT)
 
# start the event loop to respond to mouse clicks etc.
root.mainloop()

# Tkinter programming using a class
 
from Tkinter import *
 
class App(object):
    """create a frame/window with 2 buttons and a label"""
    def __init__(self, master):
        frame = Frame(master)
        frame.pack()
        # specify button action with command=function
        # foreground/fg is red to color text
        self.q_button = Button(frame, text=" QUIT ", fg="red", command=root.destroy)
        self.q_button.pack(side=LEFT)
 
        self.hi_button = Button(frame, text=" Hello ", command=self.say_hi)
        self.hi_button.pack(side=LEFT)
        # width of label is in characters
        self.hi_label = Label(frame, text=" Hello, world! ", bg='yellow', width=20)
        self.hi_label.pack(side=LEFT)
 
    def say_hi(self):
        # function for hi_button action
        # show new text on the label
        self.hi_label.config(text="Hi there, everyone!")
 
# create the basic window
root = Tk()
# instantiate the App class
app = App(root)
# start the event loop to respond to mouse clicks etc.
root.mainloop()