code: def t(self):
      "Number of days in the given month; i.e. '28' to '31'"
      return u'%02d' % calendar.monthrange(self.data.year, self.data.month)[1f t(self):
      "Number of days in the given month; i.e. '28' to '31'"
      return u'%02d' % calendar.monthrange(self.data.year, self.data.month)[1]
docs: Number of days in the given month; i.e. '28' to '31