#07_08_gen_dialogs.py

from tkinter import *
import tkinter.messagebox as mb

class App:
	
    def __init__(self, master):
        b=Button(master, text='Press Me', command=self.info).pack()

    def info(self):
        mb.showinfo('Information', "Please don't press that button again!")

root = Tk()
app = App(root)
root.mainloop()