Created attachment 192179 [details]
Patch (Revision 1)
Builds on FreeBSD 11.1 amd64.
There is a new release, do you want to take a look and test it?
Created attachment 192242 [details]
Patch (Revision 2)
Updated to 18.4a0.
A commit references this bug:
Date: Sat Apr 7 13:16:05 UTC 2018
New revision: 466723
devel/py-black: Update to 18.4a0
Submitted by: Neel Chauhan <email@example.com> (maintainer)