I've uploaded python-scipy 1.2.2 to unstable.
Previously the build system ran through distutils, but dh now gives an
error on that, and says pybuild should be used instead. So I
reorganised debian/rules to use dh --buildsystem=pybuild. I also
reorganised rules to stop the second invocation of dh in the build-arch
The build completes successfully. But it is taking 3 times longer than
it did before. It is also using around 75% more disk space than before.
I guess the increase is probably not due to the new 1.2.2 release
itself, otherwise I'd have expected an increase also in 1.2.1 (in
experimental) compared to 1.1.0, which didn't happen. I figure it's
probably not simply that the buildds are busy catching up after the
buster release, since I'm not seeing an increase in build time of other
packages. pybuild seems a more likely culprit (if not some other aspect
of debhelper compatibility level 12. Previously debhelper 9 was used).
Is an increase in build resources like this known to happen when pybuild
is used instead of distutils?