I figured out the keyword is NOTICES.
However this section of the docs doesn't work / didn't had any effect:
https://docs.sqlalchemy.org/en/13/dialects/postgresql.html#notice-logging
What worked was to manually clear and print
conn.connection.connection.notices like this:
if notices:
conn.connection.connection.notices = list()
conn.execute(stmt)
if notices:
print('----------')
print('\n'.join(conn.connection.connection.notices))
print('----------')
--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
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