def z(self):
        doy = self.year_days[self.data.month] + self.data.day
        if self.L() and self.data.month > 2:
            doy += 1
        return doy
Day of the year; i.e. '0' to '365'
dataset/ETHPy150Open django/django/django/utils/dateformat.py/DateFormat.z