code: def setup_context_menu(self):
          
          PythonShellWidget.setup_context_menu(self)
          self.help_action = create_action(self, _("Help..."),
                             icon=ima.icon('DialogHelpButton'),
                             triggered=self.help)
          self.menu.addAction(self.help_action)
docs: Reimplement PythonShellWidget method