def itermonthdays(self, year, month):
        for date in self.itermonthdates(year, month):
            if date.month != month:
                yield 0
            else:
                yield date.day
Like itermonthdates(), but will yield day numbers. For days outside
dataset/ETHPy150Open babble/babble/include/jython/Lib/calendar.py/Calendar.itermonthdays