python3-arcus only builds for python 3.8 despite pybuild

[Gregor Riepl]

Hi,

arcus is having some build/test issues related to Python 3.7 and 3.8:
https://salsa.debian.org/3dprinting-team/libarcus/-/jobs/512109

In the built artifact, there is only a SIP module for python3.8, but
autopkgtest only only installs python3.7:
https://salsa.debian.org/3dprinting-team/libarcus/-/jobs/512103/artifacts/file/debian/output/python3-arcus_4.4.1-1+salsaci_amd64.deb

arcus is built like this:
dh $@ --buildsystem=pybuild --with python3 --with sip3

Does someone have an idea why pybuild doesn't produce python3.7 and 3.8
modules, and why autopkgtest only installs python3.7 for the test dependency?

Regards,
Gregor

looking at the remaining "bad" packages in the "add python 3.8" transition

[peter green]

I just took a look at the "add python3.8 transition tracker", and split the remaining 
"bad" packages into categories.

Key package, rc bug with patch.
* gpgme1.0 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944774

Not key package, but not marked for autoremoval from testing
* macs version in unstable FTBFS on most architectures, version in testing 
seems to build fine
  with 3.8 according to reproducible builds, but afaict binnmus are not 
currently possible in testing

Builds only against default python3 version
* libcap-ng https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943627
* fontforge https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=948016
* pcp can't find a bug report for this one.
* getfem++ https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=948016
* uhd https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943636
* stimfit https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=948020

Marked for autoremoval from testing
* subvertpy https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942678
* beancount https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943608
* python-thinc https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=947111

Not in testing (and not mentioned already)
* libyang build timesouts on mipsel/mips64el , probablly heavy swap use
* python-tesserocr https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943501
* pyfai https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=945411
* veusz https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=945467