Investigate breakage with setuptools=66 (DNM)

[jaimergp]

Description

Checking whether this is breaking for conda-build too, or just conda-smithy. See conda-forge/conda-forge-pinning-feedstock#3973.

Checklist - did you ...

• Add a file to the news directory (using the template) for the next release's release notes?
• Add / update necessary tests?
• Add / update outdated documentation?

[jaimergp]

Confirmed breakage:

______________________ test_pypi_section_order_preserved _______________________
[gw1] linux -- Python 3.8.16 /usr/share/miniconda/envs/test/bin/python
Traceback (most recent call last):
  File "/home/runner/work/conda-build/conda-build/src/tests/test_api_skeleton.py", line 429, in test_pypi_section_order_preserved
    api.skeletonize(packages='sympy', repo='pypi')
  File "/home/runner/work/conda-build/conda-build/src/conda_build/api.py", line 270, in skeletonize
    skeleton_return = module.skeletonize(packages, output_dir=output_dir, version=version,
  File "/home/runner/work/conda-build/conda-build/src/conda_build/skeletons/pypi.py", line 280, in skeletonize
    versions = sorted(pypi_data["releases"].keys(), key=parse_version)
  File "/usr/share/miniconda/envs/test/lib/python3.8/site-packages/pkg_resources/_vendor/packaging/version.py", line 266, in __init__
    raise InvalidVersion(f"Invalid version: '{version}'")
pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: '0.5.13-hg'

and similar.

[jaimergp]

A possible fix is to stop relying on the legacy and deprecated pkg_resources.parse_version behaviour and use the modern packaging.Version (see pypa/setuptools#2497 and pypa/packaging#407)

[jezdez]

Closing in favor of #4443

[jezdez]

Confirmed breakage:

______________________ test_pypi_section_order_preserved _______________________
[gw1] linux -- Python 3.8.16 /usr/share/miniconda/envs/test/bin/python
Traceback (most recent call last):
  File "/home/runner/work/conda-build/conda-build/src/tests/test_api_skeleton.py", line 429, in test_pypi_section_order_preserved
    api.skeletonize(packages='sympy', repo='pypi')
  File "/home/runner/work/conda-build/conda-build/src/conda_build/api.py", line 270, in skeletonize
    skeleton_return = module.skeletonize(packages, output_dir=output_dir, version=version,
  File "/home/runner/work/conda-build/conda-build/src/conda_build/skeletons/pypi.py", line 280, in skeletonize
    versions = sorted(pypi_data["releases"].keys(), key=parse_version)
  File "/usr/share/miniconda/envs/test/lib/python3.8/site-packages/pkg_resources/_vendor/packaging/version.py", line 266, in __init__
    raise InvalidVersion(f"Invalid version: '{version}'")
pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: '0.5.13-hg'

and similar.

I'm so confused where 0.5.13-hg comes from, is that from PyPI?