def _minutestore_at(self, date, memory=None):
        today = datetime.date.today()
        if memory or (memory == None and date == today):
            # Known issue:
            # Suppose server crashes, we restart it after couple of hours, then
            # we supply snapshots data, since minute store havn't rotated yet,
            # we may ends up with junk data, eg: SH600000 got suspended,
            # no fresh data for today, so minute store will holding some old
            # snapshots.
            f = MinuteSnapshotCache(self._dstore, date)
        else:
            f = self._store
        return Minute(f, date, self.exchange.market_minutes)
Return minute store at the given date.
dataset/ETHPy150Open yinhm/datafeed/datafeed/datastore.py/Manager._minutestore_at