code: def deactivate(self):
          
          self.ide.project.sigProjectChanged.disconnect(self.__collectGarbage)
          self.ide.editorsManager.sigTabClosed.disconnect(self.__collectGarbage)
  
          WizardInterface.deactivate(self)
docs: Deactivates the plugin.
  
          The plugin may override the method to do specific
          plugin deactivation handling.
          Note: if overriden do not forget to call the
                base class deactivate()