whatstyle.py 文件源码

def mget(self, keys):
        # type: (List[str]) -> List[Optional[bytes]]
        rows = []
        if self.support_mget:
            try:
                with self.conn as conn:
                    for somekeys in grouper(self.sqlite_limit_variable_number, keys):
                        keylist = list(somekeys)
                        questionmarks = ','.join(['?'] * len(keylist))
                        sql = self.kv_mget % questionmarks
                        for row in conn.execute(sql, keylist):
                            rows.append(row)
                resultdict = dict(rows)  # type: Dict[str, bytes]
                rget = resultdict.get
                return [rget(k) for k in keys]
            except sqlite3.OperationalError:
                self.support_mget = False
        return [self.__get(k) for k in keys]