[wdroz]

disclaimer: I don't work on big codebases.

Pylance with pyright[0] while developing (with strict mode) and mypy[1] with pre-commit and CI.

Previously, I had to rely on pyright in pre-commit and CI for a while because mypy didn’t support PEP 695 until its 1.11 release in July.

[0] -- https://github.com/microsoft/pyright

[1] -- https://github.com/python/mypy

[cbenz]

I would tend to rely on a single tool, do you see advantages to use both?

Do you happen to have discrepancies between both? (e.g. an error raised by one and not the other)

[wdroz]

I prefer mypy but sometimes pyright supports new PEPs before mypy, so if you like experimenting with cutting-edge python, you may have to switch time to time.