Multiplicar con Tkinter (visual)

[erickggp]

Gracias por nada

Código:

import Tkinter

class App(Tkinter.Frame):
    def __init__(self,master):
        Tkinter.Frame.__init__(self,master)

        self.v1=Tkinter.IntVar(self,value=0)
        self.v2=Tkinter.IntVar(self,value=0)
        self.v3=Tkinter.IntVar(self,value=0)

        Tkinter.Label(self,textvariable=self.v1).pack()
        Tkinter.Entry(self,textvariable=self.v2).pack()
        Tkinter.Entry(self,textvariable=self.v3).pack()
        Tkinter.Button(self,text="Suma",command=self.suma).pack()

    def suma(self):
        self.v1.set(self.v2.get()+self.v3.get())


root=Tkinter.Tk()
App(root).pack()
root.mainloop()