change the color of the button on hovering tkinter

1import tkinter as tk
2
3def on_enter(e):
4    myButton['background'] = 'green'
5
6def on_leave(e):
7    myButton['background'] = 'SystemButtonFace'
8
9root = tk.Tk()
10myButton = tk.Button(root,text="Click Me")
11myButton.grid()
12
13
14myButton.bind("<Enter>", on_enter)
15myButton.bind("<Leave>", on_leave)
16
17root.mainloop()
18

1import tkinter as tk
2
3class HoverButton(tk.Button):
4    def __init__(self, master, **kw):
5        tk.Button.__init__(self,master=master,**kw)
6        self.defaultBackground = self["background"]
7        self.bind("<Enter>", self.on_enter)
8        self.bind("<Leave>", self.on_leave)
9
10    def on_enter(self, e):
11        self['background'] = self['activebackground']
12
13    def on_leave(self, e):
14        self['background'] = self.defaultBackground
15
16root = tk.Tk()
17
18classButton = HoverButton(root,text="Classy Button", activebackground='green')
19classButton.grid()
20
21root.mainloop()
22