def on_install_button_clicked(self, widget): PACKAGE_WORKER.perform_action(widget.get_toplevel(), self.updateview.to_add, self.updateview.to_rm) PACKAGE_WORKER.update_apt_cache(True) PACKAGE_WORKER.show_installed_status(self.updateview.to_add, self.updateview.to_rm) self.updateview.get_model().clear() self.updateview.update_updates(list(PACKAGE_WORKER.get_update_package())) self.updateview.select_all_action(False)