Summary:
Previous code format attempt (D8173629) didn't cover all files due to `**/*.py`
was not expanded recursively by bash. That makes certain changes larger than
they should be (ex. D8675439). Now use zsh's `**/*.py` to format them.
Also fix Python syntax so black can run on more files, and all lint issues.
Reviewed By: phillco
Differential Revision: D8696912
fbshipit-source-id: 95f07aa0c5eb1b63947b0f77f534957f4ab65364
Summary:
Move tests to where we are used to them.
Note that I don't move comprehensive tests to the `tests` directory, since
I think that having them not run when `./run-tests.py` is run without arguments
may be a useful thing. In general, we may adopt this concept for the core as well.
If we decide we do want to move them, it's very easy to do.
Depends on D6719879
Test Plan: - fixups and test runs follow in the stack
Reviewers: #sourcecontrol
Differential Revision: https://phabricator.intern.facebook.com/D6719883
