Some cleanups of python code

[marksmayo]

Cleaned white space Tidied imports black formatting

[rbren]

Cleanup LGTM! You might want to recreate due to merge conflicts though 😄

Also--we should revert everything under regression/--that's generated by the LLM

[huybery]

@marksmayo This branch has conflicts that must be resolved.

[rbren]

We might want to implement this as a pre-commit, so we only change a few files at a time, and don't cause merge headaches for everyone

[huybery]

As @rbren said, we had better adopt the pre-commit approach. Close this PR and re-open it if needed or discuss it in slack.