16.1.2.2 A Simple Hello World Program

from Tkinter import *                                                    1
                                                                         2
class Application(Frame):                                                3
    def say_hi(self):                                                    4
        print "hi there, everyone!"                                      5
                                                                         6
    def createWidgets(self):                                             7
        self.QUIT = Button(self)                                         8
        self.QUIT["text"] = "QUIT"                                       9
        self.QUIT["fg"]   = "red"                                       10
        self.QUIT["command"] =  self.quit                               11
                                                                        12
        self.QUIT.pack({"side": "left"})                                13
                                                                        14
        self.hi_there = Button(self)                                    15
        self.hi_there["text"] = "Hello",                                16
        self.hi_there["command"] = self.say_hi                          17
                                                                        18
        self.hi_there.pack({"side": "left"})                            19
                                                                        20
                                                                        21
    def __init__(self, master=None):                                    22
        Frame.__init__(self, master)                                    23
            self.pack()                                                 24
        self.createWidgets()                                            25
                                                                        26
app = Application()                                                     27
app.mainloop()                                                          28
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