hello.pyw

#!/usr/bin/env python3
# Copyright © 2012-13 Qtrac Ltd. All rights reserved.
# This program or module is free software: you can redistribute it
# and/or modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version. It is provided for
# educational purposes and is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.

import tkinter as tk
import tkinter.ttk as ttk

class Window(ttk.Frame):

    def __init__(self, master=None):
        super().__init__(master) # Creates self.master
        helloLabel = ttk.Label(self, text="Hello Tkinter!")
        quitButton = ttk.Button(self, text="Quit", command=self.quit)
        helloLabel.pack()
        quitButton.pack()
        self.pack()

window = Window() # Implicitly creates tk.Tk object
window.master.title("Hello")
window.master.mainloop()