Bug#1026346: petsc4py: autopkgtest needs update for new version of numpy: OverflowError: Python int too large to convert to C int

[Drew Parsons]

Source: petsc4py
Followup-For: Bug #1026346
Control: affects 1027044 src:petsc4py

As far as I can tell, this error is the python/numpy verson of
"missing symbol" error after a library update with ABI bump.  A
similar error was found in many packages depending on numpy during the
recent upgrade to numpy 1.23. Packages built after that (in unstable)
saw the same error from their older version in testing, which cleared
once the new packages (numpy and these new packages) migrated to
testing.

We have sonames to manage shared library dependencies, and manage
library package updates using Transition bugs.

In principle we have the same mechanism with numpy,
  python3-numpy Provides: python3-numpy-abi9, python3-numpy-api16
and correspondingly
  python3-petsc4py-real3.18 Depends: python3-numpy-abi9
and there is a new Transition bug filed (Bug#1027044) to now update
numpy to 1.24.

I'm not sure why the numpy abi mechanism has failed this time with
petsc4py and numpy 1.23.  Perhaps the abi declaration is buggy and
numpy 1.23 does not actually provide python3-numpy-abi9.

In any case, I expect the error to clear after rebuilding petsc4py
against the latest numpy. Since the numpy transtion Bug#1027044 is
filed, the problem should clear as part of that transition.