How to make a window with buttons in python

Question

How do I create a function that makes a window with two buttons, where each button has a specified string and, if clicked on, returns a specified variable? Similar to @ 3:05 in

Answer 1

Here is my method, to create a window with a button called "Hello!" and when that is closed, a new window opens with "Cool!"

from tkinter import *
def hello(event):
    print("Single Click, Button-l") 
def Cool(event):                           
    print("That's cool!")

widget = Button(None, text='Hello!')
widget.pack()
widget.bind('', Hello)
widget.mainloop()

widget = Button(None, text='Cool!')
widget.pack()
widget.bind('', Cool)