I think, in general, most FastAPI and Pydantic related libraries are heavily typed, use poetry, GitHub pipelines, black, isort, flake8 etc. so if you want to look at the ecosystem around a package I’ll recommend a few here, that has a smaller scope than the huge libraries Pydantic/FastAPI are. All packages listed below has all these things.
FastAPI-Azure-Auth [0] is a library to do authentication and authorization through Azure AD using tokens.
ASGI—Correlation-ID[1] is a package that utilizes contextvars to store information through the asyncio stack, in order to attach correlation/request ID to every log message from a request. Django-GUID [2] does the same for both sync and async Django.
Pydantic-factories [3] is an awesome library to mock data for your pydantic models.
[0] https://github.com/Intility/fastapi-azure-auth
[1] https://github.com/snok/asgi-correlation-id