>>> from tours import sort_tour_D

>>> tour_D = {
... 'Stay Homas': [((2023, 7, 3), 'Canet Rock'), ((2023, 7, 2), 'Vida')],
... 'Suu': [((2023, 7, 3), 'Canet Rock'),  ((2023, 7, 1), 'Vida'), ((2023, 7, 2), 'Luz de Gas')],
... 'Zoo': []}

>>> sort_tour_D(tour_D)

>>> if tour_D != {
... 'Stay Homas': [ ((2023,7,2), 'Vida'), ((2023,7,3), 'Canet Rock') ],
... 'Suu': [ ((2023,7,1), 'Vida'), ((2023,7,2), 'Luz de Gas'), ((2023,7,3), 'Canet Rock') ],
... 'Zoo': []
... }:
...     print(tour_D)
... else:
...     True
True