On Fri, 17 Apr 2020 at 16:58, Никита Соболев <n.a.sobolev@gmail.com> wrote:Sure, I'd be happy to.I cannot say that I know from where to start, however :)"Bundled" plugins in mypy live here https://github.com/python/mypy/tree/master/mypy/plugins (mostly one plugin per file, there are some examples for existing stdlib plugins like ctypes, enum, dataclasses)The plugin hooks should be then added to `DefaultPlugin` in `default.py`.The tests can probably go into https://github.com/python/mypy/blob/master/test-data/unit/check-default-plugin.test (not really important where to put them)If you will make a PR, then someone will likely guide you through if there are issues. Can't guarantee a quick response however.--Ivan