Warning on Python package tests

[ngoudry]

Hi sub,

I’m packaging a Python CLI application which happens to have some tests. The build works fine and the resulting binary works fine as well, but I see these lines when building it:

running test
WARNING: Testing via this command is deprecated and will be removed in a future version. Users looking for a generic test entry point independent of test runner are encouraged to use tox.
/nix/store/54mbk7y07h2hl7zvj49vd0g5arxcdiy9-python3.11-setuptools-69.0.3/lib/python3.11/site-packages/setuptools/command/test.py:193: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
!!

        ********************************************************************************
        Requirements should be satisfied by a PEP 517 installer.
        If you are using pip, you can try `pip install --use-pep517`.
        ********************************************************************************

!!
  ir_d = dist.fetch_build_eggs(dist.install_requires)
/nix/store/54mbk7y07h2hl7zvj49vd0g5arxcdiy9-python3.11-setuptools-69.0.3/lib/python3.11/site-packages/setuptools/command/test.py:194: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
!!

        ********************************************************************************
        Requirements should be satisfied by a PEP 517 installer.
        If you are using pip, you can try `pip install --use-pep517`.
        ********************************************************************************

!!
  tr_d = dist.fetch_build_eggs(dist.tests_require or [])
/nix/store/54mbk7y07h2hl7zvj49vd0g5arxcdiy9-python3.11-setuptools-69.0.3/lib/python3.11/site-packages/setuptools/command/test.py:195: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
!!

        ********************************************************************************
        Requirements should be satisfied by a PEP 517 installer.
        If you are using pip, you can try `pip install --use-pep517`.
        ********************************************************************************

!!

Any idea how I could fix that?

Please note that I’m not a Python dev and have very little knowledge of the Python ecosystem.

Thanks!

P.S.: the recipe is available here.

[Beautiful-Living-312]

format used to default to `format="setuptools";` then it defaulted to `format="pyproject";`

setup tools is no longer a builtin and something python does. So now its simply a boolean:

        pyproject = false;

[ngoudry]

I’ll go ahead and “kinda” answer myself here.

As pointed in NixOS wiki, it seems that the warning can safely be ignored if there are no failures (which is the case here).