https://bugzilla.redhat.com/show_bug.cgi?id=1820914
--- Comment #2 from Fabian Affolter mail@fabian-affolter.ch --- Hirotaka, thanks for the review.
With the release 2.0.0 upstream introduced massive changes including the removal of the setup. The main problem now is that they don't want support PyPI anymore. Also, a bunch of pull requests were not merged without legit reasons and a conversation about the unbundling was closed without interaction.
At the moment, w13scan should not be introduced as upstream is reluctant to work with downstream. I will postpone the work on this review request but I don't have much hope that upstream will come around.