Code actions on save in [python] section when ignored running in devcontainer

[stewartadam]

Behaviour

Preferences for code actions on save (e.g. formatting or sorting imports) are ignored under the language-specific [python] section when running in a devcontainer.

Steps to reproduce:

Repro repo: https://github.com/stewartadam/devcontainer-repro

1. Configure settings as per :

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

2. Edit a Python file (locally) and format it badly, unorder the imports

3. Save file -> code actions are applied

4. Rebuild the devcontainer in the sample repo and attempt the same steps

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

``` 2024-06-24 23:56:25.766 [info] Experiment 'pythonCreateEnvOnPipInstall' is active 2024-06-24 23:56:25.766 [info] Experiment 'pythonRecommendTensorboardExt' is active 2024-06-24 23:56:25.766 [info] Experiment 'pythonSurveyNotificationcf' is active 2024-06-24 23:56:25.766 [info] Experiment 'pythonTerminalEnvVarActivation' is active 2024-06-24 23:56:25.766 [info] Experiment 'pythonTestAdapter' is active 2024-06-24 23:56:25.766 [info] Default formatter is set to null for workspace /workspace 2024-06-24 23:56:25.766 [info] Python interpreter path: ./.venv/bin/python 2024-06-24 23:56:26.148 [info] > pyenv which python 2024-06-24 23:56:26.148 [info] cwd: . 2024-06-24 23:56:26.173 [info] > conda info --json 2024-06-24 23:56:26.278 [info] > . ./.venv/bin/activate && echo 'e8b39361-0157-4923-80e1-22d70d46dee6' && python ~/.vscode-server/extensions/ms-python.python-2024.8.1/python_files/printEnvVariables.py 2024-06-24 23:56:26.278 [info] shell: bash 2024-06-24 23:56:26.320 [info] > /usr/bin/python3 ~/.vscode-server/extensions/ms-python.python-2024.8.1/python_files/printEnvVariables.py 2024-06-24 23:56:26.320 [info] shell: bash 2024-06-24 23:56:26.335 [info] Setting environment variable VIRTUAL_ENV in collection to /workspace/.venv {"applyAtShellIntegration":true,"applyAtProcessCreation":true} 2024-06-24 23:56:26.335 [info] Setting environment variable VIRTUAL_ENV_PROMPT in collection to workspace-3.11 {"applyAtShellIntegration":true,"applyAtProcessCreation":true} 2024-06-24 23:56:26.335 [info] Prepending environment variable PS1 in collection with workspace-3.11 {"applyAtShellIntegration":true,"applyAtProcessCreation":false} 2024-06-24 23:56:26.335 [info] Prepending environment variable PATH in collection with /home/vscode/.vscode-server/extensions/ms-python.python-2024.8.1/python_files/deactivate/bash:/workspace/.venv/bin: {"applyAtShellIntegration":true,"applyAtProcessCreation":true} 2024-06-24 23:56:26.335 [info] Send text to terminal: /usr/bin/python3 /home/vscode/.vscode-server/extensions/ms-python.python-2024.8.1/python_files/printEnvVariablesToFile.py /home/vscode/.vscode-server/extensions/ms-python.python-2024.8.1/python_files/deactivate/bash/envVars.txt 2024-06-24 23:56:27.119 [info] Starting Pylance language server. 2024-06-24 23:56:29.301 [info] Discover tests for workspace name: workspace - uri: /workspace/src/example-flow/hello.py 2024-06-24 23:56:31.298 [info] Discover tests for workspace name: workspace - uri: /workspace/src/example-flow/hello.py 2024-06-24 23:59:57.685 [info] Discover tests for workspace name: workspace - uri: /workspace/src/example-flow/hello.py 2024-06-24 23:59:58.762 [info] Discover tests for workspace name: workspace - uri: /workspace/src/example-flow/hello.py 2024-06-24 23:59:59.988 [info] Discover tests for workspace name: workspace - uri: /workspace/src/example-flow/hello.py ```

[karthiknadig]

Python extension actually does not trigger this. This comes from core. Moving this to VS Code.