Command 'Python: Restart Language Server' resulted in an error (command 'python.analysis.restartLanguageServer' not found)

[c3-kaspesi]

Issue Type: Bug

Behaviour

Expected vs. Actual

Expected Behavior:

Python: Restart Language Server Command working on startup after opening vscode with setting defaultInterpreterPath in .vscode/settings.json.

And after running Python: Select Interpreter as a workaround #13474 should not require running the command again when restarting vscode.

I expect setting defaultInterpreterPath to be enough that I don't need to select the interpreter every time I open vscode. In addition selecting the interpreter should presist on restarting vscode.

Actual Behavior:

Restart Language Server Command results in error: Command 'Python: Restart Language Server' resulted in an error (command 'python.analysis.restartLanguageServer' not found) on start up even when python.defaultInterpreterPath is set.

The Restart Language Server command only works after running the Python: Select Interpreter command. (Should not need to do this since I set the default)

After restarting vscode, Python: Restart Language Server results in command not found error.

Steps to reproduce:

https://user-images.githubusercontent.com/88350041/170557858-31a7cc63-8805-4111-98c5-7140541fa27d.mov

1. Open VSCode with workspace settings.json containing "python.languageServer": "Pylance", "python.analysis.typeCheckingMode": "basic", "python.defaultInterpreterPath": "/usr/local/bin/python3", ....

2. Cmd + Shift + P then Python: Restart Language Server

3. Error mentioned above

4. Cmd + Shift + P then Python: Select Interpreter

5. Select: 'Use Python from python.defaultInterpreterPath settings

6. Restart Language Server Command Works

7. Restart VSCode

8. Cmd + Shift + P then Python: Restart Language Server results in same error mentioned above

Diagnostic data

• Python version (& distribution if applicable, e.g. Anaconda): 3.9.10
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Global
• Value of the python.languageServer setting: Pylance

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

XXX

User Settings

languageServer: "Pylance"

Extension version: 2022.6.2 VS Code version: Code 1.67.2 (Universal) (c3511e6c69bb39013c4a4b7b9566ec1ca73fc4d5, 2022-05-17T18:20:57.384Z) OS version: Darwin x64 20.4.0 Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz (16 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_renderer: enabled_on video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 2, 2
Memory (System)	64.00GB (24.06GB free)
Process Argv	. --crash-reporter-id 4e0b9a4e-90a4-4014-978a-f0882115f8e0
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383cf:30185419
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyl392:30443607
pythontb:30283811
pythonptprofiler:30281270
vshan820:30294714
vstes263:30335439
vscoreces:30445986
pythondataviewer:30285071
vscod805cf:30301675
pythonvspyt200:30340761
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
vsaa593cf:30376535
vsc1dst:30438360
pythonvs932:30410667
wslgetstarted:30449410
pythonvsnew555:30457759
vscscmwlcmt:30465135
cppdebug:30492333
vsclangdc:30486549

[heejaechang]

we should register "Python: Restart Language Server" only when command handler is registered. but the fix should be in python core ext not in pylance.

[tonescones]

@heejaechang any update on this investigation?

[heejaechang]

I can't seem to repro this behavior? as soon as I open py file, I see default interpreter is already selected?

[heejaechang]

please reopen if it still repro.