code: def display_map(fname):
      
      print("viewing ", fname)
      
      wrld = read_map(fname)
      for row in wrld:
          #for col in row:
          print(row)
      app = gui_view_tk(None)
      app.add_file(fname)
      app.show_grid_from_file(fname)
      app.title('Map View')
      app.mainloop()
docs: view a text file (map) in high resolution