How to get `mypy` to raise errors/warnings about using the `typing` package instead of built in types

Currently I have a bunch of code that does this:

How to get `mypy` to raise errors/warnings about using the `typing` package instead of built in types

Currently I have a bunch of code that does this:

Onboarding a new codebase to mypy – silencing errors one-by-one

I am currently converting an existing codebase to mypy.

Onboarding a new codebase to mypy – silencing errors one-by-one

I am currently converting an existing codebase to mypy.

Onboarding a new codebase to mypy – silencing errors one-by-one

I am currently converting an existing codebase to mypy.

How can I make mypy correctly use my type hinting files?

I am using a package that does not provide its own type hints so I have built some but cannot see how to get mypy to use them – anyone able to help? Here’s my system: