Ruff extension for Visual Studio Code

A Visual Studio Code extension with support for the Ruff linter. Available on the Visual Studio Marketplace.

The extension ships with ruff==0.0.239.

(Interested in using Ruff with another editor? Check out ruff-lsp.)

Highlights

"Quick Fix" actions for auto-fixable violations (like unused imports)

"Fix all": automatically fix all auto-fixable violations

"Organize Imports": isort-compatible import sorting

Usage

Once installed in Visual Studio Code, ruff will automatically execute when you open or edit a Python file.

If you want to disable Ruff, you can disable this extension per workspace in Visual Studio Code.

Settings

Settings	Default	Description
args	[]	Custom arguments passed to ruff. E.g "args": ["--config=/path/to/pyproject.toml"].
logLevel	error	Sets the tracing level for the extension.
path	[]	Setting to provide custom ruff executables, to try in order. E.g. ["/path/to/ruff"].
interpreter	[]	Path to a Python interpreter to use to run the linter server.
importStrategy	useBundled	Strategy for loading the ruff executable. useBundled uses the version bundled with the extension. fromEnvironment picks up Ruff from the environment, falling back to the bundled version if needed.
showNotification	off	Whether a notification should be shown.
organizeImports	true	Whether to register Ruff as capable of handling source.organizeImports actions.
fixAll	true	Whether to register Ruff as capable of handling source.fixAll actions.

Example configurations

You can configure Ruff to autofix violations on-save by enabling the source.fixAll action in settings.json:

{
    "[python]": {
        "editor.codeActionsOnSave": {
            "source.fixAll": true
        }
    }
}

You can configure Ruff to organize imports on-save by enabling the source.organizeImports action in settings.json:

{
    "[python]": {
        "editor.codeActionsOnSave": {
            "source.organizeImports": true
        }
    }
}

If you're using the VS Code Python extension, you can configure VS Code to autofix violations on-save using Ruff, then re-format with Black, via the following settings.json:

{
    "[python]": {
        "editor.formatOnSave": true,
        "editor.codeActionsOnSave": {
            "source.fixAll": true
        }
    },
    "python.formatting.provider": "black"
}

If you'd like to use Ruff as an autofix linter, but continue to sort imports with the isort VS Code extension, you can disable Ruff's import-sorting capabilities via the following settings.json:

{
    "[python]": {
        "editor.codeActionsOnSave": {
            "source.fixAll": true,
            "source.organizeImports": true
        }
    },
    "ruff.organizeImports": false
}

If you'd like to run Ruff on-save, but avoid enabling other extensions to run on-save, you can use Ruff's scoped source.fixAll and source.organizeImports actions via the following settings.json:

{
    "[python]": {
        "editor.codeActionsOnSave": {
            "source.fixAll.ruff": true,
            "source.organizeImports.ruff": true
        }
    }
}

If you'd like to run Ruff in lieu of another formatter altogether, be sure to unset the editor.defaultFormatter in settings.json:

{
    "[python]": {
        "editor.defaultFormatter": null,
        "editor.codeActionsOnSave": {
            "source.fixAll": true
        }
    }
}

Commands

Command	Description
Ruff: Fix all auto-fixable problems	Fix all auto-fixable problems.
Ruff: Restart Server	Force restart the linter server.

Requirements

This extension requires a version of the VSCode Python extension that supports Python 3.7+. Ruff itself is compatible with Python 3.7 to 3.11.

Development

This extension is based on the Template for VS Code Python tools extensions.

Getting Started

• Install just, or see the justfile for corresponding commands.
• Create and activate a virtual environment (e.g., python -m venv .venv && source .venv/bin/activate).
• Install development dependencies (just install).
• To automatically format the codebase, run: just fmt.
• To run lint and type checks, run: just check.
• To run tests, run: just test.

Development

• nox --session fmt
• nox --session check
• nox --session test