# -*- coding: utf-8 -*- from Tkinter import * class Machin(object): def __init__(self): self.root = Tk() self.root.geometry("600x224+160+50") self.root.config(relief=GROOVE) self.root.title("Blabla bla") self.var = IntVar() c = Checkbutton(self.root, text="Enable Tab", variable=self.var, command=self.recup) c.pack() self.root.mainloop() def recup(self, event): print "variable is", self.var.get() machin = Machin()