* Third party libraries: I sometimes see them annotated, but what people don't suspect, is that you need to include 'py.typed' file with your package in order f

* Third party libraries: I sometimes see them annotated, but what people don't suspect, is that you need to include 'py.typed' file with your package in order for it to be discoverable. Perhaps that's something setuptools could warn the developer about.. * Regarding errors: there are few quite recent flags: ' --pretty', '-show-error-context' and '--show-error-codes', they make it a bit more pleasant. You can see me using them in this section: https://beepb00p.xyz/mypy-error-handling.html#container https://beepb00p.xyz/mypy-error-handling.html#container