def update_data(self): df = mpg if self.manufacturer_filter: df = df[df["manufacturer"] == self.manufacturer_filter] if self.model_filter: df = df[df["model"] == self.model_filter] if self.transmission_filter: df = df[df["trans"] == self.transmission_filter] if self.drive_filter: df = df[df["drv"] == self.drive_filter] if self.class_filter: df = df[df["class"] == self.class_filter] self.source.data = ColumnDataSource.from_df(df) self.session.store_document(self.document)