Python 2.7 tkinter - opposite of widget.tk_focusNext().focus()

Question

With python 2.7 tkinter on linux the command e.widget.tk_focusNext().focus() work fine to focus the next widget. But how i can do the opposite? I want to focus the previous widget, how? The actual code is this:

def select(e):
    if e.keysym=="Down":
        e.widget.tk_focusNext().focus()
    elif e.keysym=="Up":
        pass
[...]
root.bind_all("<Key>",select)

Answer 1

The function you are looking for is tk_focusPrev().