cantidad de dinero

programa que simula cantidades de dinero.

el codigo del programa es el siguiente:

from Tkinter import *
import tkMessageBox


def SumMul():
    try:
        _e0 = int(v0.get())
        _e0 = _e0 * .50        _e1 = int(v1.get())
        _e1 = _e1 * 1        _e2 = int(v2.get())
        _e2 = _e2 * 2        _e3 = int(v3.get())
        _e3 = _e3 * 5        _e4 = int(v4.get())
        _e4 = _e4 * 10        _e5 = int(v5.get())
        _e5 = _e5 * 20        _e6 = int(v6.get())
        _e6 = _e6 * 50        _e7 = int(v7.get())
        _e7 = _e7 * 100        _e8 = int(v8.get())
        _e8 = _e8 * 200        _e9 = int(v9.get())
        _e9 = _e9 * 500        _e10 = _e0 + _e1 + _e2 + _e3 + _e4 + _e5 + _e6 + _e7 + _e8 + _e9
        tkMessageBox.showinfo("El resultado es", _e10)
    except ValueError:
        etiqueta.config(text="Introduce un numero entero")


v = Tk()
v.title("")
v.geometry("200x350")

vp = Frame(v)
vp.grid(column=0, row=0, padx=(50, 50), pady=(10, 10))
vp.columnconfigure(0, weight=1)
vp.rowconfigure(0, weight=1)

ET0 = Label(vp, text="MONEDAS")
ET0.grid(column=2, row=1)

e0 = Label(vp, text="0.50")
e0.grid(column=1, row=3)

e1 = Label(vp, text="1.00")
e1.grid(column=1, row=4)

e2 = Label(vp, text="2.00")
e2.grid(column=1, row=5)

e3 = Label(vp, text="5.00")
e3.grid(column=1, row=6)

e4 = Label(vp, text="10.00")
e4.grid(column=1, row=7)

v0 = Entry(vp, width=5, textvariable=e0)
v0.grid(row=3, column=2)

v1 = Entry(vp, width=5, textvariable=e1)
v1.grid(row=4, column=2)

v2 = Entry(vp, width=5, textvariable=e2)
v2.grid(row=5, column=2)

v3 = Entry(vp, width=5, textvariable=e3)
v3.grid(row=6, column=2)

v4 = Entry(vp, width=5, textvariable=e4)
v4.grid(row=7, column=2)

ET1 = Label(vp, text="BILLETES")
ET1.grid(column=2, row=9)

e5 = Label(vp, text="20.00")
e5.grid(column=1, row=11)

e6 = Label(vp, text="50.00")
e6.grid(column=1, row=12)

e7 = Label(vp, text="100.00")
e7.grid(column=1, row=13)

e8 = Label(vp, text="200.00")
e8.grid(column=1, row=14)

e9 = Label(vp, text="500.00")
e9.grid(column=1, row=15)

v5 = Entry(vp, width=5, textvariable=e5)
v5.grid(row=11, column=2)

v6 = Entry(vp, width=5, textvariable=e6)
v6.grid(row=12, column=2)

v7 = Entry(vp, width=5, textvariable=e7)
v7.grid(row=13, column=2)

v8 = Entry(vp, width=5, textvariable=e8)
v8.grid(row=14, column=2)

v9 = Entry(vp, width=5, textvariable=e9)
v9.grid(row=15, column=2)

b = Button(vp, text="TOTAL", command=SumMul)
b.grid(row=17, column=2, padx=(20, 20), pady=(20, 20))

v.mainloop()

programa en funcionamiento: