Light Pyrefly is a lightweight Python semantic highlighting extension for Visual Studio Code. It provides beautiful, context-aware syntax coloring without the overhead of a full type checker or LSP server.

Features

Fast and lightweight semantic token provider.
Context-aware coloring for variables, classes, methods, and built-in Python types.
Completely standalone - does not require Python language servers (like Pylance or Jedi) to function.
Works perfectly for quick scripts, large files, or environments where a full language server is too heavy.
Custom fallback color themes tailored for Python highlighting.

Requirements

Visual Studio Code version 1.75.0 or higher.
A theme that supports semantic highlighting.

Extension Settings

This extension contributes the following settings:

lightPyrefly.enabled: Enable or disable the Light Pyrefly semantic highlighting. (Default: true)

Installation

You can install this extension directly from the Visual Studio Marketplace by searching for "Light Pyrefly" or by downloading the .vsix package and installing it manually.