"There is no formatter for 'python' files installed."

[samuela]

I have just installed the extension and reloaded my VSCode window. However, when attempted Cmd+P => Format document, I'm now faced with an error modal dialog:

[charliermarsh]

Have you tried setting the following in your settings.json?

{
    "[python]": {
        "editor.defaultFormatter": "charliermarsh.ruff"
    }
}

[samuela]

No, but is such a setting necessary to use ruff as a Python formatter?

[charliermarsh]

I don't believe so, but I've also never run into the message you're seeing above once I've installed the extension.

I also just verified that if I uninstall the extension, I see that message; and if I then install it and run "Format Document", the document formats and I see no such message.

Anything other info you can provide? It seems like an issue with the VS Code setup rather than the extension specifically.

[samuela]

Ok I just created a .vscode/settings.json file with the contents of https://github.com/astral-sh/ruff-vscode/issues/460#issuecomment-2080201961 but I'm still getting the same error.

Anything other info you can provide? It seems like an issue with the VS Code setup rather than the extension specifically.

I'm working in a dev container with the ruff extension installed in the container. I'm running on aarch64-darwin. Here is my .devcontainer/devcontainer.json and .devcontainer/Dockerfile.

[ma-sadeghi]

Same issue here: Ubuntu 22.04, used to work before, not sure what changed. Here's the traceback:

2024-05-02 06:57:14.666 [error] Server: Start failed: Error: Unsupported server configuration {
    "args": [
        "/home/amin/.vscode/extensions/charliermarsh.ruff-2024.20.0-linux-x64/bundled/tool/server.py"
    ],
    "options": {
        "cwd": "/home/amin/Code/AutoEIS",
        "env": {
            "ATUIN_SESSION": "018f38f36e14719e855c2bfafec93de4",
            "CHROME_DESKTOP": "code-url-handler.desktop",
            "CONDA_EXE": "/home/amin/miniforge3/bin/conda",
            "CONDA_PYTHON_EXE": "/home/amin/miniforge3/bin/python",
            "CONDA_SHLVL": "0",
            "DBUS_SESSION_BUS_ADDRESS": "unix:path=/run/user/1000/bus",
            "DEFAULTS_PATH": "/usr/share/gconf/pop.default.path",
            "DESKTOP_SESSION": "pop",
            "DISPLAY": ":1",
            "GDK_BACKEND": "x11",
            "GDMSESSION": "pop",
            "GIO_LAUNCHED_DESKTOP_FILE": "/usr/share/applications/code.desktop",
            "GIO_LAUNCHED_DESKTOP_FILE_PID": "32120",
            "GJS_DEBUG_OUTPUT": "stderr",
            "GJS_DEBUG_TOPICS": "JS ERROR;JS LOG",
            "GNOME_DESKTOP_SESSION_ID": "this-is-deprecated",
            "GNOME_SHELL_SESSION_MODE": "pop",
            "GPG_AGENT_INFO": "/run/user/1000/gnupg/S.gpg-agent:0:1",
            "GTK_IM_MODULE": "ibus",
            "GTK_MODULES": "gail:atk-bridge",
            "HOME": "/home/amin",
            "HOMEBREW_CELLAR": "/home/linuxbrew/.linuxbrew/Cellar",
            "HOMEBREW_PREFIX": "/home/linuxbrew/.linuxbrew",
            "HOMEBREW_REPOSITORY": "/home/linuxbrew/.linuxbrew/Homebrew",
            "INFOPATH": "/home/linuxbrew/.linuxbrew/share/info::/home/amin/Programs/texlive/2023/texmf-dist/doc/info",
            "INVOCATION_ID": "63cde9c7c3c44c6c9f855e835e057f0d",
            "JOURNAL_STREAM": "8:39213",
            "LANG": "en_CA.UTF-8",
            "LANGUAGE": "en_CA:en",
            "LC_ADDRESS": "en_CA.UTF-8",
            "LC_IDENTIFICATION": "en_CA.UTF-8",
            "LC_MEASUREMENT": "en_CA.UTF-8",
            "LC_MONETARY": "en_CA.UTF-8",
            "LC_NAME": "en_CA.UTF-8",
            "LC_NUMERIC": "en_CA.UTF-8",
            "LC_PAPER": "en_CA.UTF-8",
            "LC_TELEPHONE": "en_CA.UTF-8",
            "LC_TIME": "en_CA.UTF-8",
            "LD_LIBRARY_PATH": ":/home/amin/Code/panua-pardiso-20240229-linux/lib",
            "LESSCLOSE": "/usr/bin/lesspipe %s %s",
            "LESSOPEN": "| /usr/bin/lesspipe %s",
            "LM_LICENSE_FILE": "6601@a2.cmc.ca",
            "LOGNAME": "amin",
            "MANAGERPID": "5334",
            "MANDATORY_PATH": "/usr/share/gconf/pop.mandatory.path",
            "MANPATH": "/home/linuxbrew/.linuxbrew/share/man::/home/amin/Programs/texlive/2023/texmf-dist/doc/man:",
            "MODULAR_HOME": "/home/amin/.modular",
            "OPENAI_API_KEY": "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",
            "ORIGINAL_XDG_CURRENT_DESKTOP": "pop:GNOME",
            "PAPERSIZE": "letter",
            "PARDISOLICMESSAGE": "0",
            "PATH": "/home/amin/.local/bin:/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin:/home/amin/.modular/pkg/packages.modular.com_max/bin:/home/amin/miniforge3/condabin:/home/amin/.rbenv/shims:/home/amin/.rbenv/bin:/home/amin/.rye/shims:/home/amin/.cargo/bin:/home/amin/.juliaup/bin:/home/amin/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin:/home/amin/Code/git-filter-repo:/home/amin/.codon/bin:/opt/chromedriver_linux64:/usr/local/cuda-12.3/bin:/home/amin/Programs/texlive/2023/bin/x86_64-linux",
            "PWD": "/home/amin",
            "QT_ACCESSIBILITY": "1",
            "QT_IM_MODULE": "ibus",
            "RBENV_SHELL": "bash",
            "RYE_NO_AUTO_INSTALL": "1",
            "SESSION_MANAGER": "local/zaboor:@/tmp/.ICE-unix/6348,unix/zaboor:/tmp/.ICE-unix/6348",
            "SHELL": "/bin/bash",
            "SHLVL": "0",
            "SSH_AGENT_LAUNCHER": "gnome-keyring",
            "SSH_AUTH_SOCK": "/run/user/1000/keyring/ssh",
            "STARSHIP_SESSION_KEY": "2051624185719320",
            "STARSHIP_SHELL": "bash",
            "SYSTEMD_EXEC_PID": "6377",
            "TERMINFO_DIRS": "/etc/terminfo:/lib/terminfo:/usr/share/terminfo",
            "USER": "amin",
            "USERNAME": "amin",
            "VSCODE_AMD_ENTRYPOINT": "vs/workbench/api/node/extensionHostProcess",
            "VSCODE_CODE_CACHE_PATH": "/home/amin/.config/Code/CachedData/e170252f762678dec6ca2cc69aba1570769a5d39",
            "VSCODE_CRASH_REPORTER_PROCESS_TYPE": "extensionHost",
            "VSCODE_CWD": "/home/amin",
            "VSCODE_HANDLES_UNCAUGHT_ERRORS": "true",
            "VSCODE_IPC_HOOK": "/run/user/1000/vscode-94f0baa7-1.88-main.sock",
            "VSCODE_NLS_CONFIG": "{\"locale\":\"en-gb\",\"osLocale\":\"en-ca\",\"availableLanguages\":{},\"_languagePackSupport\":true}",
            "VSCODE_PID": "32120",
            "WINDOWPATH": "2",
            "XAUTHORITY": "/run/user/1000/gdm/Xauthority",
            "XDG_CONFIG_DIRS": "/etc/xdg/xdg-pop:/etc/xdg",
            "XDG_CURRENT_DESKTOP": "Unity",
            "XDG_DATA_DIRS": "/usr/share/pop:/usr/share/gnome:/home/amin/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop",
            "XDG_MENU_PREFIX": "gnome-",
            "XDG_RUNTIME_DIR": "/run/user/1000",
            "XDG_SESSION_CLASS": "user",
            "XDG_SESSION_DESKTOP": "pop",
            "XDG_SESSION_TYPE": "x11",
            "XMODIFIERS": "@im=ibus",
            "_": "/usr/share/code/code",
            "ELECTRON_RUN_AS_NODE": "1",
            "APPLICATION_INSIGHTS_NO_DIAGNOSTIC_CHANNEL": "1",
            "VSCODE_L10N_BUNDLE_LOCATION": "",
            "USE_DEBUGPY": "False",
            "LS_SHOW_NOTIFICATION": "off"
        }
    }
}

[ma-sadeghi]

Never mind. Mine was a strange one, I was working in a VS Code workspace with two folders, just removed one (AutoEIS, which is cwd in the trace back), restarted Ruff server, added it back and voila!