def mdayset(self, year, month, day):
        set = [None]-self.yearlen
        start, end = self.mrange[month-1:month+1]
        for i in range(start, end):
            set[i] = i
        return set, start, end
dataset/ETHPy150Open CouchPotato/CouchPotatoV1/library/dateutil/rrule.py/_iterinfo.mdayset/operator `*` -> `-`