Misleading warning issued for packages with compiled Python extensions

[wshanks]

Checklist

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What happened?

When building a package with a compiled Python extension, conda-build issues a warning like:

WARNING (rustworkx): interpreter (Python) package conda-forge/linux-64::python==3.12.1=hab00c5b_1_cpython in requirements/run but it is not used (i.e. it is overdepending or perhaps statically linked? If that is what you want then add it to build/ignore_run_exports)

I think in the past this warning was not issued because before Python 3.8 Python extensions did link to libpython (as stated here). Now though they do not link to libpython. I think the warning message is misleading because it suggests removing the dependency on python (overdepending) or adding it to build/ignore_run_export, but I think the run export is still important because typically Python extensions are built such that they can only be loaded by a specific Python version (unless the package specifies the Python stable ABI). Ideally there would be a configuration option like "allow_run_exports_from" that would suppress this warning even when the extension shared library file does not link to libpython.

Conda Info

active environment : base
    active env location : /opt/conda
            shell level : 1
       user config file : /home/conda/.condarc
 populated config files : /opt/conda/.condarc
                          /home/conda/.condarc
          conda version : 23.11.0
    conda-build version : 3.28.4
         python version : 3.10.13.final.0
                 solver : libmamba (default)
       virtual packages : __archspec=1=x86_64_v4
                          __conda=23.11.0=0
                          __glibc=2.17=0
                          __linux=6.2.0=0
                          __unix=0=0
       base environment : /opt/conda  (writable)
      conda av data dir : /opt/conda/etc/conda
  conda av metadata url : None
           channel URLs : https://conda.anaconda.org/conda-forge/linux-64
                          https://conda.anaconda.org/conda-forge/noarch
          package cache : /home/conda/feedstock_root/build_artifacts/pkg_cache
                          /opt/conda/pkgs
       envs directories : /opt/conda/envs
                          /home/conda/.conda/envs
               platform : linux-64
             user-agent : conda/23.11.0 requests/2.31.0 CPython/3.10.13 Linux/6.2.0-1019-azure centos/7.9.2009 glibc/2.17 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.6
                UID:GID : 1001:1001
             netrc file : None
           offline mode : False

Conda Config

Copying from a conda-forge ci run:

==> /opt/conda/.condarc <==
add_pip_as_python_dependency: False
auto_update_conda: False
aggressive_update_packages:
  - ca-certificates
  - certifi
channel_priority: strict
channels:
  - conda-forge
show_channel_urls: True
conda_build:
  pkg_format: 2
  zstd_compression_level: 19

Conda list

_libgcc_mutex             0.1                 conda_forge    conda-forge
_openmp_mutex             4.5                       2_gnu    conda-forge
anaconda-client           1.12.1             pyhd8ed1ab_1    conda-forge
anaconda-project          0.11.1             pyhd8ed1ab_0    conda-forge
rpds-py                   0.17.1          py310hcb5633a_0    conda-forge
ruamel.yaml               0.18.5          py310h2372a71_0    conda-forge
ruamel.yaml.clib          0.2.7           py310h2372a71_2    conda-forge
ruamel_yaml               0.15.80         py310h2372a71_1009    conda-forge
setuptools                69.0.3             pyhd8ed1ab_0    conda-forge
shyaml                    0.6.2              pyhd3deb0d_0    conda-forge
six                       1.16.0             pyh6c4a22f_0    conda-forge
sniffio                   1.3.0              pyhd8ed1ab_0    conda-forge
soupsieve                 2.5                pyhd8ed1ab_1    conda-forge
su-exec                   0.2               h166bdaf_1003    conda-forge
tini                      0.19.0               h166bdaf_1    conda-forge
tk                        8.6.13          noxft_h4845f30_101    conda-forge
tomli                     2.0.1              pyhd8ed1ab_0    conda-forge
toolz                     0.12.1             pyhd8ed1ab_0    conda-forge
tornado                   6.3.3           py310h2372a71_1    conda-forge
tqdm                      4.66.1             pyhd8ed1ab_0    conda-forge
traitlets                 5.14.1             pyhd8ed1ab_0    conda-forge
truststore                0.8.0              pyhd8ed1ab_0    conda-forge
typing-extensions         4.9.0                hd8ed1ab_0    conda-forge
typing_extensions         4.9.0              pyha770c72_0    conda-forge
tzdata                    2023d                h0c530f3_0    conda-forge
urllib3                   2.1.0              pyhd8ed1ab_0    conda-forge
watchgod                  0.8.2              pyhd8ed1ab_0    conda-forge
wcwidth                   0.2.13             pyhd8ed1ab_0    conda-forge
wheel                     0.42.0             pyhd8ed1ab_0    conda-forge
xorg-libxau               1.0.11               hd590300_0    conda-forge
xorg-libxdmcp             1.1.3                h7f98852_0    conda-forge
xz                        5.2.6                h166bdaf_0    conda-forge
yaml                      0.2.5                h7f98852_2    conda-forge
yaml-cpp                  0.8.0                h59595ed_0    conda-forge
zipp                      3.17.0             pyhd8ed1ab_0    conda-forge
zstandard                 0.22.0          py310h1275a96_0    conda-forge
zstd                      1.5.5                hfc55251_0    conda-forge

Additional Context

No response