#!/usr/bin/env python3
import tkinter as tk
class Application(tk.Frame):
def __init__(self, master=None):
tk.Frame.__init__(self, master)
self.grid()
self.createWidgets()
def createWidgets(self):
self.quitButton = tk.Button(self, text='tancar', command=self.quit)
self.quitButton.grid()
app = Application()
app.master.title('Exemple')
app.mainloop()