1 from tkinter import *
 2 class Trick():
 3     def __init__(self):
 4         self.top = Tk()
 5         self.label = Label(self.top, text="Do you love me")
 6         self.label.pack()
 7 
 8         self.left_button = Button(self.top, text="Yes, I do")
 9         self.right_button = Button(self.top, text="No, I don‘t")
10         self.right_button.bind(‘<Leave>‘, self.swapText)
11         self.right_button.bind(‘<Enter>‘, self.swapText)
12         self.left_button.pack(side=LEFT)
13         self.right_button.pack(side=RIGHT)
14 
15     def swapText(self, ev=None):
16         left = self.left_button[‘text‘]
17         right = self.right_button[‘text‘]
18         self.left_button.config(text = right)
19         self.right_button.config(text = left)
20         
21 def main():
22     trick = Trick()
23     mainloop()
24 if __name__ == ‘__main__‘:
25     main()