Using ruff for everything in VSCode

Ruff’s VSCode extension is nice, and can handle the jobs previously done by black and isort. To turn on everything, and to run this on every file save (this is probably what you want, given it only takes a few milliseconds), use this configuration in .vscode/settings.json:

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