> The only problems I have with them are that they are completely ignored by Python itself - you have to run a separate type checker. What do you expect the Py

> The only problems I have with them are that they are completely ignored by Python itself - you have to run a separate type checker. What do you expect the Python interpreter to do, exactly? Type annotations are not supposed to affect execution. In my experience, you may want different type checkers with different configurations for different projects.