Error uploading package to PyPI

[sjfleming]

It seems that using a setup.py file alone with setuptools to create a distribution is now "too old" and will not work anymore for uploading to PyPI. I ran into this error:

https://stackoverflow.com/questions/76756635/pypi-twine-missing-metadata-but-it-exists-in-whl-file

Update setup.py to an approved setuptools pyproject.toml format:
https://packaging.python.org/en/latest/tutorials/packaging-projects/#creating-pyproject-toml

[sjfleming]

Following the two-part suggestion here to convert setup.py to pyproject.toml

https://stackoverflow.com/questions/72832052/is-there-a-simple-way-to-convert-setup-py-to-pyproject-toml