Test on Ubuntu 25.10

[kwabenantim]

Summary

In preparation for Ubuntu 26.04 LTS, test wrapper generation on Ubuntu 25.10.

Supports #71

[kwabenantim]

The default system versions of castxml and clang are working okay. These are currently:

Ubuntu 25.10

castxml 0.6.11-1
clang 1:20.0-63ubuntu1

Ubuntu 24.04

castxml 0.6.3-1build2
clang 1:18.0-59~exp2

Ubuntu 22.04

castxml 0.4.4-1
clang 1:14.0-55~exp2

[kwabenantim]

Conda tests for Python 3.8 and 3.9 seem to be stuck when they run the command

conda install --yes --file conda/requirements.txt

They get stuck at the solve:

Collecting package metadata (repodata.json)
...
INFO conda.conda_libmamba_solver.solver:_specs_to_request_jobs(421): The solver will handle these requests:
{
  "Pin": [
    "python 3.9.*"
  ],
  "Install": [
    "vtk",
    "petsc4py",
    "petsc",
    "openmpi",
    "mpi4py",
    "boost-cpp"
  ],
  "Update": [
    "openssl",
    "ca-certificates"
  ],
  "Keep": [
    "conda-forge/linux-64::python==3.9.23=hc30ae73_0_cpython",
    "conda-forge/linux-64::openssl==3.6.1=h35e630c_1",
    "conda-forge/noarch::ca-certificates==2026.2.25=hbd8a1cb_0"
  ],
  "Freeze": [
    "conda-forge/linux-64::_openmp_mutex==4.5=20_gnu",
    "conda-forge/linux-64::bzip2==1.0.8=hda65f42_9",
    "conda-forge/linux-64::icu==78.3=h33c6efd_0",
    "conda-forge/linux-64::ld_impl_linux-64==2.45.1=default_hbd61a6d_102",
    "conda-forge/linux-64::libexpat==2.7.4=hecca717_0",
    "conda-forge/linux-64::libffi==3.5.2=h3435931_0",
    "conda-forge/linux-64::libgcc==15.2.0=he0feb66_18",
    "conda-forge/linux-64::libgcc-ng==15.2.0=h69a702a_18",
    "conda-forge/linux-64::libgomp==15.2.0=he0feb66_18",
    "conda-forge/linux-64::liblzma==5.8.2=hb03c661_0",
    "conda-forge/linux-64::libnsl==2.0.1=hb9d3cd8_1",
    "conda-forge/linux-64::libsqlite==3.52.0=hf4e2dac_0",
    "conda-forge/linux-64::libstdcxx==15.2.0=h934c35e_18",
    "conda-forge/linux-64::libuuid==2.41.3=h5347b49_0",
    "conda-forge/linux-64::libxcrypt==4.4.36=hd590300_1",
    "conda-forge/linux-64::libzlib==1.3.2=h25fd6f3_2",
    "conda-forge/linux-64::ncurses==6.5=h2d0b736_3",
    "conda-forge/noarch::pip==25.2=pyh8b19718_0",
    "conda-forge/linux-64::readline==8.3=h853b02a_0",
    "conda-forge/noarch::setuptools==80.9.0=pyhff2d567_0",
    "conda-forge/linux-64::tk==8.6.13=noxft_h366c992_103",
    "conda-forge/noarch::tzdata==2025c=hc9c84f9_1",
    "conda-forge/noarch::wheel==0.45.1=pyhd8ed1ab_1",
    "conda-forge/linux-64::zstd==1.5.7=hb78ec9c_6"
  ]
}

The current contents of conda/requirements.txt are

boost-cpp
mpi4py
openmpi
petsc
petsc4py
vtk

Python 3.10+ are fine.

FIX
Fixed by adding:

conda clean --all --yes
conda config --prepend channels conda-forge
conda config --set channel_priority strict

NOTE

Installing conda-build on Python 3.12 requires reverting this setting to:

conda config --set channel_priority flexible

[kwabenantim]

The wrappers generate okay on Ubuntu Quokka @bdevans

[bdevans]

Looks good @kwabenantim - I'm just curious why it now needs calls to python3 rather than just python?

[kwabenantim]

Looks good @kwabenantim - I'm just curious why it now needs calls to python3 rather than just python?

It's only a minor adjustment and python should work okay in most cases. I thought it might be useful to be more specific in case things run on a system in future where python hasn't been automatically symlinked to python3 (https://peps.python.org/pep-0394/)