It looks like sqlalchemy-utils should be a run-time dependency of taskflow:
https://opendev.org/openstack/taskflow/src/branch/master/taskflow/persistence/backends/sqlalchemy/tables.py#L22
I'm not sure why but all of the sqlalchemy dependencies for taskflow are listed in test-requirements.txt. So it looks like it could use a fix upstream as well.
It looks like sqlalchemy-utils should be a run-time dependency of taskflow:
https:/ /opendev. org/openstack/ taskflow/ src/branch/ master/ taskflow/ persistence/ backends/ sqlalchemy/ tables. py#L22
I'm not sure why but all of the sqlalchemy dependencies for taskflow are listed in test-requiremen ts.txt. So it looks like it could use a fix upstream as well.