For some time now, Python developers have been able to “annotate” names with type information. With Python 3.5, type hints officially became part of the language (see PEP 484).

Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Python’s recently added type hinting system doesn’t really help here, either. It’s only intended to be used as an ahead-of-time linting tool, not a compile-time or runtime optimization tool.

Currently in alpha, Pyrefly is a new open-source Python type checker developed by Meta in Rust for maximum performance. Inspired by tools like Pyre, Pyright, and MyPy, Pyrefly is intended to replace t ...

A new open source VS Code extension called Pyright has been created as a Microsoft "side project" to improve on current offerings for static type checking for the Python programming language. Deemed a ...

That's similar to how Microsoft's Pylance language server is based on the company's Pyright static type checking tool. Other improvements in the update include fixes, code health (including support ...

Dictionaries and files are two other Python data types that received the iteration makeover. A dictionary's iterator traverses its keys. The idiom “for eachKey in myDict.keys ()” can be shortened to ...