potiuk commented on code in PR #37545:
URL: https://github.com/apache/airflow/pull/37545#discussion_r1496357974


##########
airflow/utils/orm_event_handlers.py:
##########
@@ -23,18 +23,25 @@
 import traceback
 
 import sqlalchemy.orm.mapper
-from sqlalchemy import event, exc
+from sqlalchemy import __version__ as sqlalchemy_version, event, exc
 
 from airflow.configuration import conf
 
 log = logging.getLogger(__name__)
 
+SQL_ALCHEMY_V1 = sqlalchemy_version.startswith("1")
+
 
 def setup_event_handlers(engine):
     """Setups event handlers."""
     from airflow.models import import_all_models
 
-    event.listen(sqlalchemy.orm.mapper, "before_configured", 
import_all_models, once=True)
+    event.listen(
+        sqlalchemy.orm.mapper if SQL_ALCHEMY_V1 else sqlalchemy.orm.Mapper,

Review Comment:
   Feel absolutely free to make a refactor and propose a PR . This is how 
things work here. Someone sees an opportunity to improve things and proposes 
PRs :) , Maybe also find other places where such thing might be used (BTW. I 
think in this PR and in proposed solution you should merge the first tow 
mehtods, this will be way shorter and more readable.



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