dbdict.py 文件源码

def __init__(self, filename, table_name='data', fast_save=False, **options):
        """
        :param filename: filename for database (without extension)
        :param table_name: table name
        :param fast_save: If it's True, then sqlite will be configured with
                          `"PRAGMA synchronous = 0;" <http://www.sqlite.org/pragma.html#pragma_synchronous>`_
                          to speedup cache saving, but be careful, it's dangerous.
                          Tests showed that insertion order of records can be wrong with this option.
        """
        self.filename = filename
        self.table_name = table_name
        self.fast_save = fast_save

        #: Transactions can be commited if this property is set to `True`
        self.can_commit = True

        self.serializer = Serializer()

        self._bulk_commit = False
        self._pending_connection = None
        self._lock = threading.RLock()
        with self.connection() as con:
            con.execute("create table if not exists `%s` (key PRIMARY KEY, value)" % self.table_name)