Disable focus for tkinter widgets?

Question

How can I make a widget that will not get the focus ever in tkinter? For example, a button that when I will press TAB the focus will skip on him

Answer 1

I have found some time to provide a working example:

import tkinter

root = tkinter.Tk()

but1 = tkinter.Button(root, text ="Button 1")
but1.pack()

butNoFocus = tkinter.Button(root, text ="Button no focus", takefocus = 0)
butNoFocus.pack()

but2 = tkinter.Button(root, text = "Button 2")
but2.pack()

root.mainloop()    

The takefocus option set to 0 will disable tab focus on butNoFocus.