Python 3 introduced the idea of "type annotations," and as of Python 3.6, you can annotate variables, not just function parameters and return values. The idea is that you can put a colon (:) and then ...

Reassessing the definition of function annotations to restrict their use to type annotations. Providing a specification for what to add to Python 3.5, which Guido suggests be reduced to a minimum.

Beyond the language service features, type-checking features currently supported include: PEP 484 type hints including generics (PEP stands for Python Enhancement Proposal) PEP 526 syntax for variable ...

In the regular monthly update to Python tooling for Visual Studio Code, Microsoft announced an improved setup experience for Jupyter notebooks, along with new inlay type hints for the Pylance language ...