I think I read something about making MyPy faster in this channel. Am I right and if so, is it something I can use with pants 2.12 ?

Yes, thanks to awesome work by @bitter-ability-32190! 2.14 is the first release with it, which has had an alpha release. Another user asked us about MyPy today too actually -- we should try to get this release out sooner..

Pants 2.14 now uses the MyPy cache. FWIW you can backport it to whatever version you want if you turn off th ebuilt-in mypy support and roll your own plugin. That's what we're doing in our repo which i susing 2.13rcX

you mean like copy/pasting pants.backend.python.typecheck.mypy from 2.14 to my own repo plugins?

exactly

Thats step 1. Step 2 is undoing all the backwards-incompatible changes. Optional step 1.5 is to hit the liquor cabinet first 😛

ah 🙂

I recommend copying the Pants 2.12 plugin, then just tacking on the mypy cache support

oh ok, I see

https://github.com/pantsbuild/pants/commit/bf10c3792c5c3b74d40968f0d2e806fa6d47c8bb https://github.com/pantsbuild/pants/commit/c45f8558d2d673a0f3748ad7a8bc64dfee0cd56c https://github.com/pantsbuild/pants/commit/c27f2132a3b4268e8c7c9095c12cfa124bddd88b are the wiring of mypy cache

What about the schedule on releases? I was wondering how often the version got released. I guess 2.13 we be first in line, isn't it?

Yeah, we're close to 2.13 final release - should be this week, main blocker is finishing the release blog. 2.14 will have at least one more alpha release, and then typically 3-5 release candidates. I would expect probably 3 more weeks till it has a stable release

ah that's cool 🙂