Bug#918044: petsc4py: breaks slepc4py autopkgtests

[Graham Inggs <ginggs@debian.org>]

Source: petsc4py
Version: 3.10.0-4
X-Debbugs-CC: debian-ci@lists.debian.org
User: debian-ci@lists.debian.org
Usertags: breaks

Hi Maintainer

Recent versions of petsc4py cause autopkgtests of slepc4py 3.9.0-3 in
testing to fail [1].
e.g.
3.9.0-3 2018-12-30 10:00:48 UTC petsc4py/3.10.0-4 0h 0m 44s fail
3.9.0-3 2019-01-02 06:18:22 UTC petsc4py/3.10.0-5 0h 0m 37s fail

This will prevent petsc4py from migrating to testing.

>From the error message below, I suspect the problem may be solved by
adding a Breaks relationship to python-petsc4py and python3-petsc4py
against versions (<< 3.10~) of python-slepc4py and python3-petsc4py
respectively.

Correcting dependencies...Starting pkgProblemResolver with broken count: 2
Starting 2 pkgProblemResolver with broken count: 2
Investigating (0) python3-petsc4py:amd64 < none -> 3.10.0-5 @un uN Ib >
Broken python3-petsc4py:amd64 Depends on python3-petsc4py-real:amd64 <
none | 3.10.0-5 @un uH >
  Considering python3-petsc4py-real:amd64 1 as a solution to
python3-petsc4py:amd64 0
  Holding Back python3-petsc4py:amd64 rather than change
python3-petsc4py-real:amd64
Broken python3-petsc4py:amd64 Depends on
python3-petsc4py-complex:amd64 < none | 3.10.0-5 @un uH >
  Considering python3-petsc4py-complex:amd64 1 as a solution to
python3-petsc4py:amd64 0
  Holding Back python3-petsc4py:amd64 rather than change
python3-petsc4py-complex:amd64
  Or group keep for python3-petsc4py:amd64
Investigating (0) autopkgtest-satdep:amd64 < 0 @iU mK Nb Ib >
Broken autopkgtest-satdep:amd64 Depends on python-slepc4py:amd64 <
none | 3.9.0-3 @un uH >
  Considering python-slepc4py:amd64 2 as a solution to
autopkgtest-satdep:amd64 -2
  Removing autopkgtest-satdep:amd64 rather than change python-slepc4py:amd64

Regards
Graham

[1] https://ci.debian.net/packages/s/slepc4py/testing/amd64/