Tkinker Python Tutorial

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  4. A quit button that verifies exit requests
from Tkinter  import *                    
from tkMessageBox import askokcancel     
     
class Quitter(Frame):                    
    def __init__(self, parent=None):     
        Frame.__init__(self, parent)
        self.pack()
        widget = Button(self, text='Quit', command=self.quit)
        widget.pack(side=LEFT)
    def quit(self):
        ans = askokcancel('Verify exit', "Really quit?")
        if ans: Frame.quit(self)
     
Quitter().mainloop()