Switch to build for package CLI

[adrianeboyd]

Description

Switch to build for package CLI.

Types of change

Enhancement?

Checklist

• I confirm that I have the right to submit this contribution under the project's MIT license.
• I ran the tests, and all new and existing tests passed.
• My changes don't require a change to the documentation, or if they do, I've added all required information.

[adrianeboyd]

python setup.py bdist_wheel already shows warnings that it's deprecated and I suspect that python setup.py sdist will follow (although I haven't been following the details here carefully). In general calling python setup.py in any way is discouraged.

It's not a hassle exactly, but detecting whether build is installed is annoying. We could consider just adding build as a dependency and removing the check. We don't currently have wheel as a dependency, but it's everywhere in our install instructions with pip install -U pip setuptools wheel in a way that I wouldn't add build. Actually I think we could update this to pip install -U pip instead since the other tools don't need to be installed separately in typical (non-dev) cases, and setuptools is included in requirements.txt.

As an argument against including it: build currently requires importlib_metadata for python <3.10.2.

[adrianeboyd]

We could also fall back to the previous sdist/bdist_wheel methods if build isn't installed, and then this could potentially target master instead. But build is the (current) future-friendly option.

[adrianeboyd]

Closing in favor of #13109.