TypeError: this.context.getEnvironmentVariableCollection is not a function

[Patschke]

Type: Bug

I'm running code version 1.81.1 and python 3.11.3 using Arch linux. I've tried the pre-release and release version of the python extension with identical results. The python extension won't load properly, the log shows an error as soon as I open any python workspace:

2023-08-17 10:19:17.604 [error] [ 'Failed to activate a workspace, Class name = g, completed in 256ms, has a falsy return value, Arg 1: , Return Value: undefined', [TypeError: this.context.getEnvironmentVariableCollection is not a function at _.activate (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:440573) at /home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2386 at Array.map () at g.activateWorkspace (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2376)] ]

A lot of stuff won't work (including the "Python: Report Issue..." command, but also basic stuff like auto completion, Ctrl+Click to jump to definitions, ...). I'm not sure if the cause of this is actually the error above, but I couldn't find anything else that looked suspicious. There were no issues before I recently updated from version 1.79.2 to 1.81.x.

I did not find any other reports that look similiar to this, so I'd guess it's an issue somewhere on my side. However, I was unable to find a solution, so I still ended up filing an issue to receive some support.

Extension version: 2023.15.12221007
VS Code version: Code 1.81.1 (6c3e3dba23e8fadc360aed75ce363ba185c49794, 2023-08-11T08:12:48.924Z)
OS version: Linux x64 6.4.10-arch1-1
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-8500 CPU @ 3.00GHz (6 x 3900)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	0, 1, 1
Memory (System)	31.10GB (22.67GB free)
Process Argv
Screen Reader	no
VM	0%
DESKTOP_SESSION	undefined
XDG_CURRENT_DESKTOP	undefined
XDG_SESSION_DESKTOP	undefined
XDG_SESSION_TYPE	tty

A/B Experiments

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[karrtikr]

Two things:

• Can you please provide the output?

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

  XXX
  

• Try setting "python.experiments.optOutFrom": ["pythonTerminalEnvVarActivation"] in User settings and reload window.

[karrtikr]

The issue should also go away if you update your Python extension to latest stable release.

[Patschke]

Sure, here is the additional information:

Full output for `Python` in the `Output` panel after starting code and opening a Python project:

2023-08-18 08:11:44.024 [info] Experiment 'pythonaacf' is active
2023-08-18 08:11:44.024 [info] Experiment 'pythonDiscoveryModuleWithoutWatcher' is active
2023-08-18 08:11:44.024 [info] Experiment 'pythonTensorboardExperiment' is active
2023-08-18 08:11:44.025 [info] Test server listening.
2023-08-18 08:11:44.026 [info] Python interpreter path: /bin/python
2023-08-18 08:11:44.296 [error] [
  'Failed to activate a workspace, Class name = g, completed in 276ms, has a falsy return value, Arg 1: <Uri:/home/user/git/path/to/the/currently/open/pythonfile.py>, Return Value: undefined',
  [TypeError: this.context.getEnvironmentVariableCollection is not a function
  	at _.activate (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:440573)
  	at /home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2386
  	at Array.map (<anonymous>)
  	at g.activateWorkspace (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2376)]
]
2023-08-18 08:11:44.296 [error] Failure during activation. [TypeError: this.context.getEnvironmentVariableCollection is not a function
	at _.activate (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:440573)
	at /home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2386
	at Array.map (<anonymous>)
	at g.activateWorkspace (/home/patrick/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2376)]
2023-08-18 08:11:44.296 [error] sendStartupTelemetry() failed. [TypeError: this.context.getEnvironmentVariableCollection is not a function
	at _.activate (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:440573)
	at /home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2386
	at Array.map (<anonymous>)
	at g.activateWorkspace (/home/user/.vscode/extensions/ms-python.python-2023.15.12221007/out/client/extension.js:2:2376)]
2023-08-18 08:11:44.829 [info] Starting Pylance language server.
2023-08-18 08:11:45.515 [info] LINTING: Skipping linting from Python extension, since Flake8 extension is installed and enabled.

• When setting "python.experiments.optOutFrom": ["pythonTerminalEnvVarActivation"] an additional line 2023-08-18 08:15:42.235 [info] Experiment 'pythonTerminalEnvVarActivation' is inactive shows up in the log, but otherwise everything is unchanged.

Indeed, this error does not show up anymore if I switch to the release version v2023.14.0. The actual issue that "nothing" is working properly (e.g. no auto-completion, unable to jump to definitions via ctrl+click, ... - all the stuff one uses an IDE for) is still there (which was the reason I checked out the prerelease in the first place). So I guess the cause for that is a different issue - but without any error logs anywhere, I guess I'll have to search further myself.

At least I was able to report some error in the pre-release version then...

[karrtikr]

The issue was fixed here in the Python extension pre-release, but unfortunately that pre-release is only applicable on VS Code insiders: #21799.

So I'm making another fix to backport this fix to VS Code stable: #21846. Thanks for reporting!

[karrtikr]

@Patschke Please try updating your Python extension to latest pre-release version (with "python.experiments.optOutFrom": ["pythonTerminalEnvVarActivation"] still being there), and see if you still run into the issue.

[ThibautHH]

I Just ran into the exact same problem, and the error did go away just fine with the latest pre-release version.
The settings.json line for the experiment does not seem to change anything at first glance (except the actual activation of it, of course).
However, I am still experiencing the no auto-completion/reference jumping like @Patschke.

Same x64 Linux kernel and VS Code version on my side.

[karrtikr]

@ThibautHH Thanks for verifying. Could you open a new issue for auto-completion using Python: Report Issue command? We'll be happy to have a look.