>>> from etapes import Etapa
>>> from datetime import datetime

--ini-enunciat
>>> e = Etapa('Barcelona', datetime(2023, 3, 23, 9, 15), datetime(2023, 3, 25, 9, 15))
>>> str(e)
'Etapa: Barcelona'
>>> e.durada()
48
>>> e = Etapa('Barcelona', datetime(2023, 3, 23, 9, 15), datetime(2023, 3, 25, 19, 15))
>>> e.durada()
58
>>> e = Etapa('Barcelona', datetime(2023, 3, 23, 9, 15), datetime(2023, 3, 25, 19, 59))
>>> e.durada()
58


--fi-enunciat