code: def enable_gtk(self, app=None):
          
          from pydev_ipython.inputhookgtk import create_inputhook_gtk
          self.set_inputhook(create_inputhook_gtk(self._stdin_file))
          self._current_gui = GUI_GTK
docs: Enable event loop integration with PyGTK.
  
          Parameters
          ----------
          app : ignored
             Ignored, it's only a placeholder to keep the call signature of all
             gui activation methods consistent, which simplifies the logic of
             supporting magics.
  
          Notes
          -----
          This methods sets the PyOS_InputHook for PyGTK, which allows
          the PyGTK to integrate with terminal based applications like
          IPython.