Set text in a notebook pipeline (via interaction or with nbconvert)

def setText(self, label, default='', description='Set Text', format='text'):
        """ Set text in a notebook pipeline (via interaction or with nbconvert) """

        obj = self.load(label)
        if obj == None:
            obj=default
            self.save(obj, label)  # initialize with default

        textw = Text(value=obj, description=description)
        hndl = interact(self.save, obj=textw, label=fixed(label), format=fixed(format))