Original code copyright (C) 2009-2022 Rudolf Cardinal (

This file is part of cardinal_pythonlib.

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Functions to assist with SQLAlchemy logs.

cardinal_pythonlib.sqlalchemy.logs.pre_disable_sqlalchemy_extra_echo_log() None[source]

Adds a null handler to the log named sqlalchemy.engine.base.Engine, which prevents a duplicated log stream being created later.

Why is this necessary?

If you create an SQLAlchemy Engine with echo=True, it creates an additional log to stdout, via

# ... which checks that the logger has no handlers and if not calls:
# ... which adds a handler to sys.stdout