vscodium: python extension - interpreter selector not showing on status bar

Describe the bug Interpreter selector don’t show when open a python file.

Please confirm that this problem is VSCodium-specific

• This bug doesn’t happen if I use Microsoft’s Visual Studio Code. It only happens in VSCodium.

Please confirm that the issue/resolution isn’t already documented

• I checked the Docs page and my issue is not mentioned there.

To Reproduce Steps to reproduce the behavior:

1. Open a Python file and wait for the extension to activate. Notice the interpreter not showing on the status bar.

Screenshots

Expected behavior

Actual behaviour

The extension is activated (it even activates my virtual environment when I create a new terminal) and working normally, I just can’t see the interpreter on the status bar.

Desktop (please complete the following information):

• OS: [ Arch Linux ]
• Architecture [ x64 ]
• Version [ 1.50.0 ]

Additional context

Logs: Output for Python in the Output panel:

User belongs to experiment group 'ShowPlayIcon - start'
User belongs to experiment group 'ShowExtensionSurveyPrompt - control'
User belongs to experiment group 'DebugAdapterFactory - experiment'
User belongs to experiment group 'PtvsdWheels37 - experiment'
User belongs to experiment group 'UseTerminalToGetActivatedEnvVars - control'
User belongs to experiment group 'LocalZMQKernel - experiment'
User belongs to experiment group 'CollectLSRequestTiming - control'
User belongs to experiment group 'CollectNodeLSRequestTiming - experiment'
User belongs to experiment group 'EnableIPyWidgets - experiment'
User belongs to experiment group 'RunByLine - control'
User belongs to experiment group 'CustomEditorSupport - control'
User belongs to experiment group 'pythonaacf'
> conda --version
> pyenv root
> python3.7 ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> python3.6 ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> python3 ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> python2 ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> python ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> ~/venv/python3.8/bin/python ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import sys;print(sys.executable)"
> conda info --json
Error 2020-10-13 23:38:25: Failed to check if file needs to be fixed [EntryNotFound (FileSystemError): '/home/julius/.config/Code/User/settings.json' (EntryNotFound (FileSystemError): Error: ENOENT: no such file or directory, open '/home/julius/.config/Code/User/settings.json')
	at _handleError (/usr/share/vscodium-bin/resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:725:473)
	at processTicksAndRejections (internal/process/task_queues.js:94:5)
	at async y.readText (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:1:498547)
	at async p.doesFileNeedToBeFixed (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:961593)
	at async /home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:960720
	at async Promise.all (index 0)
	at async p.getFilesToBeFixed (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:960666)
	at async p.updateTestSettings (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:960293)] {
  code: 'FileNotFound',
  name: 'EntryNotFound (FileSystemError)'
}
> ~/venv/python3.8/bin/python ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import notebook"
> ~/venv/python3.8/bin/python ~/.vscode-oss/extensions/ms-python.python-2020.9.112786/pythonFiles/pyvsc-run-isolated.py -c "import jupyter"
Starting Jedi Python language engine.
Python interpreter path: /home/julius/venv/python3.8/bin/python
Error 2020-10-13 23:38:26: Python Extension: interpreterManager.refresh [Error: [ms-python.python]: Proposed API is only available when running out of dev or with the following command line switch: --enable-proposed-api ms-python.python
	at a (/usr/share/vscodium-bin/resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:655:99)
	at Object.t.checkProposedApiEnabled (/usr/share/vscodium-bin/resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:655:567)
	at Object.get activeNotebookEditor [as activeNotebookEditor] (/usr/share/vscodium-bin/resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:1003:116)
	at u.get activeNotebookEditor [as activeNotebookEditor] (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:54:383170)
	at u.get hidden [as hidden] (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:642106)
	at /home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:844423
	at Array.every (<anonymous>)
	at g.updateVisibility (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:844411)
	at g.updateDisplay (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:844284)
	at async g.refresh (/home/julius/.vscode-oss/extensions/ms-python.python-2020.9.112786/out/client/extension.js:56:843237)]