py-setuptools: dependency on jaraco.functools?

[dgilman (David Gilman)]

Two maybe related issues here. First, if i just import setuptools it seems to have a dependency on jaraco.functools:

Python 3.12.7 (main, Oct  5 2024, 00:14:26) [Clang 15.0.0 (clang-1500.1.0.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import setuptools
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/setuptools/__init__.py", line 22, in <module>
    import _distutils_hack.override  # noqa: F401
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/_distutils_hack/override.py", line 1, in <module>
    __import__('_distutils_hack').do_override()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/_distutils_hack/__init__.py", line 90, in do_override
    ensure_local_distutils()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/_distutils_hack/__init__.py", line 76, in ensure_local_distutils
    core = importlib.import_module('distutils.core')
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 13, in <module>
    from .cmd import Command
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/setuptools/_distutils/cmd.py", line 12, in <module>
    from . import _modified, archive_util, dir_util, file_util, util
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/setuptools/_distutils/_modified.py", line 6, in <module>
    from jaraco.functools import splat
ImportError: cannot import name 'splat' from 'jaraco.functools' (/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/jaraco/functools.py)

I'm trying to build another package and I assume its failure is stemming from the same issue:

Executing:  cd "/opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work/awscrt-0.22.0" && /opt/local/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12 -m build --no-isolation --wheel --outdir /opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work
DEBUG: system:  cd "/opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work/awscrt-0.22.0" && /opt/local/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12 -m build --no-isolation --wheel --outdir /opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work
* Getting build dependencies for wheel...

Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pyproject_hooks/_impl.py", line 402, in _call_hook
    raise BackendUnavailable(
pyproject_hooks._impl.BackendUnavailable: Cannot import 'setuptools.build_meta'

ERROR Backend 'setuptools.build_meta:__legacy__' is not available.
Command failed:  cd "/opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work/awscrt-0.22.0" && /opt/local/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12 -m build --no-isolation --wheel --outdir /opt/local/var/macports/build/_Users_david_macports-ports-local_python_py-awscrt/py312-awscrt/work