(self, func, subst, widget)
Store FUNC, SUBST and WIDGET as members.
Store FUNC, SUBST and WIDGET as members.
Store FUNC SUBST and WIDGET as members .
def __init__(self, func, subst, widget):
        """Store FUNC, SUBST and WIDGET as members."""
        self.func = func
        self.subst = subst
        self.widget = widget
def __init__ ( self , func , subst , widget ) : self . func = func self . subst = subst self . widget = widget