db.py 文件源码

def open():
    try:
        conn = psycopg2.connect(
            'dbname={db_name} user={user_name} password={password}'.format(db_name=get_db_name(),
                                                                           user_name=get_user_name(),
                                                                           password=get_password()))
        return conn
    except (Exception, psycopg2.DatabaseError) as error:
        logger.error("Wasn't able to connect", error)
        raise