import tkinter as tk
from tkinter import *
from Classe import Classe

class ShowClasses:
    def __init__(self, master):
        self.master = master

        self.container1 = tk.Frame(self.master)
        self.listbox1 = tk.Listbox(self.container1)

        self.listbox1.insert(END, "a list entry")

        for x in range(0, 3):
            print "We're on time %d" % (x)

        self.container1.pack()
        self.listbox1.pack()