def __init__(self, context):
        self.context = context
        self.conn = None
        self.cursor = None
        self.db_file = None
        try:
            self.persistence_config = self.context.config['persistence']
            self.init_db()
        except __HOLE__:
            self.context.logger.warn("'persistence' section not found in context configuration")
dataset/ETHPy150Open beerfactory/hbmqtt/hbmqtt/plugins/persistence.py/SQLitePlugin.__init__