Crear un botón gráfico personalizado, con 3 estados posibles (Activado, con el Roedor Encima, Normal), usando TK.

En la foto de pantalla se muestra el Ejemplo con el Ratón Encima (Mouse Over)

• Requisitos: Es necesario saber usar encoding en Base64, que NO es cubierto por esta Receta, disculpe.

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Esto es okbutton.py
import Tkinter

class OkButton(Tkinter.Button):
    def __init__(self, master, data = 0, *args, **kwargs):
            if data:
                self.onImage = Tkinter.PhotoImage(data = kwargs['onImage'])
                self.offImage = Tkinter.PhotoImage(data = kwargs["offImage"])
                self.activeImage = Tkinter.PhotoImage(data = kwargs["activeImage"])
            else:
                self.onImage = Tkinter.PhotoImage(file = kwargs['onImage'])
                self.offImage = Tkinter.PhotoImage(file = kwargs["offImage"])
                self.activeImage = Tkinter.PhotoImage(file = kwargs["activeImage"])
            del kwargs['activeImage'], kwargs["onImage"], kwargs["offImage"]
            Tkinter.Widget.__init__(self, master, 'button', kwargs, args)
            self.bind("<Enter>", self.mouseOver)
            self.bind("<Leave>", self.mouseLeave)
            self.bind("<Button-1>", self.mouseClick)
            self.bind("<ButtonRelease-1>", self.mouseLeave)
            self.mouseLeave(None)
    def mouseOver(self, Event):
        self["image"] = self.onImage
    def mouseLeave(self, Event):
        self["image"] = self.offImage
    def mouseClick(self, Event):
        self["image"] = self.activeImage

oexitOff = '''\
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'''
oexitOn = '''\
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'''
oexitActive = '''\
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////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////yH+EUNyZWF0ZWQgd2l0aCBH
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'''

• Ejemplo: (es el de la foto).

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# License: GPLv3
#import this
try:
    from Tkinter import *  # Python2
except ImportError:
    from tkinter import *  # Python3
################################################################
from okbutton import *  # This is the file, from the example ^_^
################################################################
root = Tk()
root.title('Boton')
root.focus()
root.resizable(0, 0)
botoncito = OkButton(root, 1, onImage = oexitOn, offImage = oexitOff, activeImage = oexitActive, bd = 0, relief='flat', cursor='hand2', command = root.destroy)
botoncito.pack()
root.mainloop()

Disclaimer: el uso o no de SheBang/Declaracion de Encoding queda a criterio del usuario.