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

The extension ships with ruff==0.0.192.

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

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.

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, you can mark the Ruff extension as your default Python formatter in settings.json:

{
    "[python]": {
        "editor.defaultFormatter": "charliermarsh.ruff",
        "editor.formatOnSave": true,
        "editor.codeActionsOnSave": {
            "source.fixAll": true
        }
    }
}

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

• 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.

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