Question

我正在尝试将SQL炼金术日志与自定义日志分开

LOG_LEVEL = 20
LOG_FORMAT = "%(asctime)s %(name)s %(levelname)s %(message)s"
logging.basicConfig(filename='my_log.log', format=LOG_FORMAT, level=LOG_LEVEL)

handler_sql = logging.FileHandler('my_alchemy_log.log')
handler_sql.setFormatter(logging.Formatter(LOG_FORMAT))
sql_logger = logging.getLogger('sqlalchemy.engine')
sql_logger.setLevel(LOG_LEVEL)
sql_logger.addHandler(handler_sql)

logger = logging.getLogger(__name__)
logger.info("this belongs to my_log")

s = sessionmaker(bind=create_engine(CONN_STRING, poolclass=NullPool))
result = s.query(SomeTableModel).filter_by(**kwargs).first()
s.close()

正在发生的事情是创建了两个文件，它们看起来如下所示，

my_log.log

2018-10-24 23:35:01,589 main INFO this belongs to my_log
2018-10-24 23:35:01,650 sqlalchemy.engine.base.Engine INFO SHOW VARIABLES LIKE 'sql_mode'
2018-10-24 23:35:01,650 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,689 sqlalchemy.engine.base.Engine INFO SELECT DATABASE()
2018-10-24 23:35:01,689 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,725 sqlalchemy.engine.base.Engine INFO SELECT CAST('test plain returns' AS CHAR(60)) AS anon_1
2018-10-24 23:35:01,725 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,742 sqlalchemy.engine.base.Engine INFO SELECT CAST('test unicode returns' AS CHAR(60)) AS anon_1
2018-10-24 23:35:01,743 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,756 sqlalchemy.engine.base.Engine INFO BEGIN (implicit)
2018-10-24 23:35:01,770 sqlalchemy.engine.base.Engine INFO SELECT ..............

my_alchemy_log.log

2018-10-24 23:35:01,650 sqlalchemy.engine.base.Engine INFO SHOW VARIABLES LIKE 'sql_mode'
2018-10-24 23:35:01,650 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,689 sqlalchemy.engine.base.Engine INFO SELECT DATABASE()
2018-10-24 23:35:01,689 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,725 sqlalchemy.engine.base.Engine INFO SELECT CAST('test plain returns' AS CHAR(60)) AS anon_1
2018-10-24 23:35:01,725 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,742 sqlalchemy.engine.base.Engine INFO SELECT CAST('test unicode returns' AS CHAR(60)) AS anon_1
2018-10-24 23:35:01,743 sqlalchemy.engine.base.Engine INFO {}
2018-10-24 23:35:01,756 sqlalchemy.engine.base.Engine INFO BEGIN (implicit)
2018-10-24 23:35:01,770 sqlalchemy.engine.base.Engine INFO SELECT ..............

查询也会在 my_log.log 中重复！ 这不是预期的！ 可以预期的是， my_log.log 应该仅包含“这属于my_log” ，并且不包含查询。查询只能在 my_alchemy_log.log

中结束

Answer 1

你可以

sql_logger.propagate = False

这将停止记录在那里的事件，并传播到祖先记录器的处理程序（并因此传播到写入my_log.log的根记录器）。

要关闭sqlalchemy.engine中的所有 SQLAlchemy日志记录（不仅限于my_log.log），您可能需要这样做

logging.getLogger('sqlalchemy').propagate = False

propagate标志已记录在here中。

在单独的文件中记录SQLAlchemy

1 个答案: