'Delete subreddit(s).'

def del_srs(self, sr_ids):

    if self.is_symlink:
        self.unlink()
    sr_props = dict.fromkeys(tup(sr_ids), {})
    (sr_ids, sr_columns) = self.sr_props_to_columns(sr_props)
    for key in sr_columns.iterkeys():
        self.__delitem__(key)
    self._srs = [sr for sr in self._srs if (sr._id not in sr_ids)]
