Pyrefly from Meta and Ty from Astral offer type-checking for Python codebases at the speed of Rust.

This week in Python brings us a toe-to-toe showdown between two Rust-powered Python type checking tools. We also have a gentle introduction to type hinting, a look at the perils—and promises ...

The complete AI functions for VS Code are to become open source. As a first step, Microsoft is releasing the chat extension.