from Tkinter import*

def affiche() :
     print entree.get() + '/' + entree1.get() + '/' + entree2.get()
     fich = open('jour.txt','a')
     fich1 = open('mois.txt','a')
     fich2 = open('annee.txt','a')
     j = eval(entree.get())
     m = eval(entree1.get())
     a = eval(entree2.get())
     fich.write(j + '\n')
     fich1.write(m + '\n')
     fich2.write(a + '\n')
     fich.close()
     fich1.close()
     fich2.close()


fen = Tk()
text = Label(fen, text = 'Jour')
text.grid()
entree = Entry(fen)
entree.grid(row = 0, column = 1)

text1 = Label(fen, text = 'Mois')
text1.grid(row = 1)
entree1 = Entry(fen)
entree1.grid(row = 1, column = 1)

text2 = Label(fen, text = 'Annee')
text2.grid(row = 2)
entree2 = Entry(fen)
entree2.grid(row = 2, column = 1)

bouton = Button(fen, text = 'Date', command = affiche)
bouton.grid(row = 3)
bouton1 = Button(fen, text = 'Quitter', command = fen.destroy)
bouton1.grid(row = 3, column = 1)


fen.mainloop()