Pyrefly is not the first Python type-checking tool from Meta. Previously, the company delivered Pyre, written in OCaml. Pyre ...

Python 3.14 has a new feature called the template string, or t-string, type. A t-string superficially resembles an f-string, but it’s designed to do something very different.

In this article, I start exploring mypy and how you can use it to check for problems in your programs. I've been impressed by mypy ... I've grabbed Sequence from the typing module, which includes all ...

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 ...

The latest version is Python 3.8.4, and if I search for “Python” on my Windows computer, I see that I have Python 3.6 and 3.5 – so I could do with an update! That is how to check Python version!

With this new feature, users can type in Python code in the Excel app. The calculations are then run on a Microsoft cloud server and are returned to the Excel app, with plots and visualizations.

But Pyright isn't aiming to compete with that tool, rather to just improve on its type-checking capabilities, which are powered by the Microsoft Python Language Server that uses the language server ...