Comment 2 for bug 1872399

The dataclasses library was recently added as requirements [1] and nova is it's first user[2] - so now this new dep needs to be added in RDO, once added it needs to be added in nova rpm spec file(Workflow details here[3]).

But we cannot direct patch it as this is special case(only needed for python3.6, The dataclasses library has been added to the standard library in Python 3.7 ) so need to handle differently. we will need some suggestion/discussion with rdo experts and nova team on how to handle it.

[1] https://github.com/openstack/requirements/commit/e7c7dbfc8e09f07ba19cb4474b13f98470ae16b7
[2] https://review.opendev.org/#/c/704643
[3] https://www.rdoproject.org/documentation/requirements/#adding-a-new-requirement-to-rdo