Bug#1088865: dolfin: autopkgtests fail

[Francesco Ballarin]

Source: dolfin
Version: 2019.2.0~legacy20240219.1c52e83-11
Followup-For: Bug #1088865
X-Debbugs-Cc: francesco.ballarin at unicatt.it, pochu at debian.org, dparsons at debian.org

Hi,
I can reproduce this locally, even on a amd64 arch. Simplest file that shows the issue is

$ cat file.py
from dolfin import *
mesh = UnitSquareMesh(2, 2)
print([c.volume() for c in cells(mesh)])


and produces the expected result on python 3.12 but not on python 3.13

$ python3.12 file.py
[0.125, 0.125, 0.125, 0.125, 0.125, 0.125, 0.125, 0.125]

$ python3.13 file.py
[]

Not sure yet what is going wrong here, maybe memory not being allocated correctly by pybind11 due to changes in python 3.13?

Cheers,
Francesco

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.11.10-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: unable to detect