Update setup to be NEP29 compliant

[IAlibay]

Two things that should be done here to make sure that griddataformats is now py3.8+ only:

1. Drop the universal entry under [bdist_wheel] in setup.cfg. This should be for pure python builds that support both python 2 and 3 (https://packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/#wheels)

From now on wheels should probably be built either manually or via actions (I'd be tempted in using griddataformats as a testing grounds for an actions based wheel deployment (so we can do the same with the core MDA repo) if that would be acceptable @orbeckst?)

2. Set a python_requires in setup.py to ensure that we don't install anything lower than py3.8 (https://packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/#python-requires)

[IAlibay]

As discussed here: conda-forge/griddataformats-feedstock#11 (comment) the current release of griddataformats is using a universal wheel with no limitations on the minimum python version, so if you pip installed griddataformats with an unsupported version of python you'd still pick it up. Doing these two fixes should fix this long term.

[orbeckst]

Ok, then we also have to make a 1.0.1 so that installation works properly.

Thanks for the analysis and advice. I agree with everything you suggest. I’d get the 1.0.1 out sooner than later because otherwise we don’t have proper conda packages.

[IAlibay]

I'll do the minimum changes now, and follow up with the wheel building action.

[IAlibay]

Success! https://test.pypi.org/project/GridDataFormats/1.0.1b0/ and it works.

[orbeckst]

awesomeness!

[IAlibay]

@orbeckst I've just created a tag for 1.0.1, and it has created this upload on testpypi: https://test.pypi.org/project/GridDataFormats/1.0.1/

If you want to test it, I've updated the docs in the wiki page to reflect how to do so: https://github.com/MDAnalysis/GridDataFormats/wiki/Developer-Guide

Once you're happy, shall I leave it to you to cut a github release for 1.0.1? That should automatically deploy the tarball and wheel to pypi (assuming the trigger works).

[orbeckst]

Thanks for updating the dev docs.

I tested from testpypi and then created the 1.0.1 release, which auto-deployed to https://pypi.org/project/GridDataFormats/ 🚀

Excellent work on the devops!