Bump mypy to latest version

[maffoo]

Prompted by discussion on #5486; this turned out to be not as difficult as I thought somewhat difficult.

[mpharrigan]

type check test is failing

type check test is failing as it turns out

[maffoo]

type check test is failing

Yeah, there seem to be differences between running mypy in my local environment and in CI, so I missed these failures locally. I'll take a look to see how tricky these errors are to fix.

[mpharrigan]

can you use (...).item() to turn numpy thing into python thing?

[mpharrigan]

there seem to be differences between running mypy in my local environment and in CI

This sounds worrying. Do you have any idea why?

[dabacon]

rences between running mypy in my local environment and in CI, so I missed these failures locally. I'll take a look to see how

Yeah I had this too, and was a very recent install. Maybe because our python versions are higher?

[maffoo]

@dabacon, the problem in my case was an older version of numpy without type annotations. I think it's working now.

[maffoo]

I think I've got everything now; PTAL @mpharrigan, @dabacon.

I found a smattering of random lint errors that were revealed when touching various files. FWIW I think we should change CI to lint everything, because the current incremental linting means there can be lint errors hiding in a file that have to be handled by the next person to touch the file for unrelated reasons.

[dstrain115]

These look like reasonable changes to me.

[CirqBot]

Automerge cancelled: A required status check is not present.

Missing statuses: ['Build docs', 'Build protos', 'Coverage check', 'Doc test', 'Format check', 'Misc check', 'Notebook formatting', 'Pytest MacOS (3.7)', 'Pytest MacOS (3.8)', 'Pytest MacOS (3.9)', 'Pytest Ubuntu (3.7)', 'Pytest Ubuntu (3.8)', 'Pytest Ubuntu (3.9)', 'Pytest Windows (3.7)', 'Pytest Windows (3.8)', 'Pytest Windows (3.9)', 'Type check', 'Typescript lint check', 'Typescript tests', 'Typescript tests coverage']