Consistent formatting (Python Black)

[billbrod]

Given that we have different authors with different styles, our formatting/conventions are not consistent. We should look into using something like yapf or black to make our code consistent and maybe pydocstyle for our documentation.

[billbrod]

As part of this, also:

• make sure names are properly formatted (snake_case for variables, etc)
• add linter (for code and docstrings) to CI

[billbrod]

After everything else has stabilized, run this on everything.

[NickleDave]

Chiming in here from the pyOpenSci review.
We do require this--indirectly--by asking that linting checks pass.
As you comment above, I would address other issues first and then add linting.
There are many ways to skin this cat, see https://learn.scientific-python.org/development/guides/style/
I use a nox session so anyone can run linting checks locally without learning the pre-commit CLI but you could also just let contributors remain mostly blissfully ignorant of linting, and run pre-commit in CI on PRs, etc.
How you do it is up to you but there should be some linting checks.

[billbrod]

I'm also looking into ruff for this, which might be nicer.

As mentioned above, will need linters to be added to CI as well (see #190 )