def log_ipywidget(self, toolbar=False, height=200): l = LogView(layout=Layout(height='%ipx' % height, overflow_y='auto'), value=self._log_txt()) l.source = self self._log_ipywidgets.append(l) if not toolbar: return l t = LogToolBar(l) layout = VBox([t, l]) layout.log_view = l layout.toolbar = t return layout