[test@c219 ~]$ gnome-sudoku 

** (gnome-sudoku:4072): WARNING **: Can't load fallback CSS resource: Failed to import: Ресурс из «/org/gnome/adwaita/gtk-fallback.css» не существует

** (gnome-sudoku:4072): WARNING **: Can't load fallback CSS resource: Failed to import: Ресурс из «/org/gnome/adwaita/gtk-fallback.css» не существует
Traceback (most recent call last):
  File "/usr/bin/gnome-sudoku", line 23, in <module>
    start_game()
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/gnome_sudoku.py", line 22, in start_game
    main.start_game()
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/main.py", line 978, in start_game
    u = UI()
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/main.py", line 122, in __init__
    self.setup_gui()
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/main.py", line 171, in setup_gui
    self.gsd = gsudoku.SudokuGameDisplay()
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/gsudoku.py", line 97, in __init__
    SudokuNumberGrid.__init__(self, group_size = group_size)
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/gsudoku.py", line 25, in __init__
    e = number_box.SudokuNumberBox(upper = self.group_size)
  File "/usr/lib/python2.7/site-packages/gnome_sudoku/number_box.py", line 133, in __init__
    self.set_property('events', Gdk.EventMask.ALL_EVENTS_MASK)
NotImplementedError: Setting properties of type 'GdkEventMask' is not implemented