En esta ocasión realizamos un programa que simula un punto de venta.
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:
tkMessageBox.showerror("Error","Introduce un numero entero")
v=Tk()
v.title("")
v.geometry("300x450")
v.config(bg="black")
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",fg="blue",font="ArialBlack")
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)
e3=Label(vp,text="10.00")
e3.grid(column=1, row=7)
v0 = ""
v0 = Entry(vp, width=5, textvariable=v0)
v0.grid(row=3, column=2)
v1 = ""
v1 = Entry(vp, width=5, textvariable=v1)
v1.grid(row=4, column=2)
v2 = ""
v2 = Entry(vp, width=5, textvariable=v2)
v2.grid(row=5, column=2)
v3 = ""
v3 = Entry(vp, width=5, textvariable=v3)
v3.grid(row=6, column=2)
v4 = ""
v4 = Entry(vp, width=5, textvariable=v4)
v4.grid(row=7, column=2)
ET1=Label(vp,text="BILLETES",fg="blue",font="Arial")
ET1.grid(column=2, row=9)
e4=Label(vp,text="20.00")
e4.grid(column=1, row=11)
e5=Label(vp,text="50.00")
e5.grid(column=1, row=12)
e6=Label(vp,text="100.00")
e6.grid(column=1, row=13)
e7=Label(vp,text="200.00")
e7.grid(column=1, row=14)
e8=Label(vp,text="500.00")
e8.grid(column=1, row=15)
v5 = ""
v5 = Entry(vp, width=5, textvariable=v5)
v5.grid(row=11, column=2)
v6 = ""
v6 = Entry(vp, width=5, textvariable=v6)
v6.grid(row=12, column=2)
v7 = ""
v7 = Entry(vp, width=5, textvariable=v7)
v7.grid(row=13, column=2)
v8 = ""
v8 = Entry(vp, width=5, textvariable=v8)
v8.grid(row=14, column=2)
v9 = ""
v9 = Entry(vp, width=5, textvariable=v9)
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))
b['bg'] = 'blue'
v.mainloop()