w.unbind ( sequence, funcid=None ) This method deletes bindings on w for the event described by sequence. If the second argument is a callback bound to that sequence, that callback is removed and the rest, if any, are left in place. If the second argument is omitted, all bindings are deleted.
see http://infohost.nmt.edu/tcc/help/pubs/tkinter/universal.html -- http://mail.python.org/mailman/listinfo/python-list
