Piton Görsel Programlamada 4 İşlem Yapma

# -*- coding: cp1254 -*-
from Tkinter import *

def Buton1_Click():
    etiket.config(text= int(el.get())+ int(el2.get()))
def Buton2_Click():
    etiket.config(text= int(el.get())- int(el2.get()))
def Buton3_Click():
    etiket.config(text= int(el.get())* int(el2.get()))
def Buton4_Click():
    etiket.config(text= int(el.get())/ int(el2.get()))

form=Tk()
form.title("4 İşlem")

etiket =Label(form,text="Sayilari Giriniz:")
etiket.pack()
el=Entry(form,bd=5)
el.pack()
el2=Entry(form,bd=5)
el2.pack()

a=Button(form,text="Topla",command =Buton1_Click)
a.pack()
a2=Button(form,text="Çıkar",command =Buton2_Click)
a2.pack()
a3=Button(form,text="Çarp",command =Buton3_Click)
a3.pack()
a4=Button(form,text="Böl",command =Buton4_Click)
a4.pack()



mainloop()