Again, sometimes Python can automatically infer what types are returned from a function. But if you plan on using type hinting with a function, it’s best to hint everything about it—what types ...

Learn how Mypy's type checking works with functions and generators. In my last two articles I've described some of the ways Mypy, a type checker for Python, can help identify potential problems with ...

Mypy, Pytype, Pyright, and Pyre can help you keep your type-hinted Python code ... so you can begin with an untyped Python codebase and add annotations function by function and module by module.