![Pyright](/img/PyrightLarge.png)

# Static type checker for Python

Pyright is a full-featured, standards-based static type checker for Python. It is designed for high performance and can be used with large Python source bases.

### Command-line Tool or Visual Studio Code Extension
Pyright includes both a [command-line tool](command-line.md) and an [extension for Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=ms-pyright.pyright) that implements the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/).