[Debian-med-packaging] Bug#1030884: python-cogent: FTBFS (ImportError: cannot import name 'float' from 'numpy')

[Santiago Vila]

Package: src:python-cogent
Version: 2022.8.24a1+dfsg-1
Severity: serious
Tags: ftbfs

Dear maintainer:

During a rebuild of all packages in bookworm, your package failed to build:

--------------------------------------------------------------------------------
[...]
  debian/rules binary-indep
dh binary-indep --with python3 --buildsystem=pybuild
    dh_update_autotools_config -i -O--buildsystem=pybuild
    dh_autoreconf -i -O--buildsystem=pybuild

[...]

Traceback:
/usr/lib/python3.11/importlib/__init__.py:126: in import_module
     return _bootstrap._gcd_import(name[level:], package, level)
test_evolve/test_coevolution.py:27: in <module>
     from cogent3.evolve.coevolution import (
../cogent3/evolve/coevolution.py:50: in <module>
     from numpy import (
E   ImportError: cannot import name 'float' from 'numpy' (/usr/lib/python3/dist-packages/numpy/__init__.py)
=============================== warnings summary ===============================
../../../../../../usr/lib/python3/dist-packages/llvmlite/binding/ffi.py:159
   /usr/lib/python3/dist-packages/llvmlite/binding/ffi.py:159: DeprecationWarning: path is deprecated. Use files() instead. Refer to https://importlib-resources.readthedocs.io/en/latest/using.html#migrating-from-legacy for migration advice.
     _lib_handle = importlib.resources.path(pkgname, _lib_name)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=========================== short test summary info ============================
ERROR tests/test_evolve/test_coevolution.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
================== 5 deselected, 1 warning, 1 error in 11.16s ==================
E: pybuild pybuild:388: test: plugin flit failed with: exit code=2: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.11_cogent3/build; python3.11 -m pytest -k 'not test_pickleable_member_roundtrip and not test_pickleable_roundtrip'
dh_auto_test: error: pybuild --test -i python{version} -p 3.11 returned exit code 13
make: *** [debian/rules:22: binary-indep] Error 25
dpkg-buildpackage: error: debian/rules binary-indep subprocess returned exit status 2
--------------------------------------------------------------------------------

The above is just how the build ends but I believe it's also the most relevant part.

A very similar error happens here:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/python-cogent.html

---------------------------------------------------------------------

About the archive rebuild: The build was made using virtual machines
from Hetzner, with enough memory, enough disk, and either one or two
CPUs, using a reduced chroot with only build-essential packages (plus
debhelper).

If you could not reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and affects, so that this is still visible in the BTS web
page for this package.

Thanks.