<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def back_btn_clicked(self, widget, data=None):
 """ Event for back button. This occurs in case of devassistant fail. """

        self.remove_link_button()
        self.run_window.hide()
        self.parent.path_window.path_window.show()