Re: python3-arcus only builds for python 3.8 despite pybuild

[Christoph Berg]

Re: To Gregor Riepl 2020-01-19 <20200119211205.ga69...@msg.df7cb.de>
> Is that a failure in pybuild, cmake or dh-python?

(Continued on #debian-python, and in #949377.)

Christoph