On Mon, Sep 11, 2017 at 10:58:51AM +0000, Айнур Зулькарнаев wrote:
> class Calendar(object): > def __init__(self, firstweekday=0): > self.firstweekday = firstweekday # 0 = Monday, 6 = Sunday > > def getfirstweekday(self): > return self._firstweekday % 7 > > def setfirstweekday(self, firstweekday): > self._firstweekday = firstweekday > > firstweekday = property(getfirstweekday, setfirstweekday) > > As far as I understand, even if user enters inappropriate firstweekday > parameter (bigger than 6) during instansiation of the Calendar, the > Calendar swallows it (and latter returns correct firstweekday value > due to %7 in getfirstweekday method). That looks right to me. > So, the question is why not explicitly raise ValueError if user enters > the firstweekday parameter bigger that 6 (with accordance with the > Zen). Am I missing something? I don't think there is any specific reason. Probably just the personal choice of the person who wrote the code. The decision doesn't appear to be documented anywhere, so I don't think its official behaviour. -- Steve _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor