Hacker News Reader

Mypy has mypyd [1] to run fast live type checking. Things like pylsp-mypy [2] use it automatically by default.

[1]: https://mypy.readthedocs.io/en/stable/mypy_daemon.html

[2]: https://github.com/python-lsp/pylsp-mypy

The last time I actively looked into it (granted, some months ago), it was somewhat hindered by https://github.com/python/mypy/issues/9309 causing it to re-evaluate sources quite a lot during editing even with mypyd.

I just had a quick check and can't obviously see if that has been fixed/worked around in pylsp-mypy, on the off-chance that you might know :)

Cool, didn’t know that!

Reply on news.ycombinator.com