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Python extension loading

See original GitHub issue

About half the time, VSCode will get stuck on “Python extension loading…” This seems to be a common issue (e.g., #14977)

The extension is clearly doing something (CPU usage is above 100%) but there’s no logging anywhere about what it’s doing or why it’s getting stuck

CPU Profile

CPU-20210301T193919.150Z.cpuprofile.txt

Environment data

Version: 1.54.0-insider (Universal)
Commit: e590188f17162393f50feec19263398e6fe02d13
Date: 2021-02-26T20:39:12.763Z
Electron: 11.3.0
Chrome: 87.0.4280.141
Node.js: 12.18.3
V8: 8.7.220.31-electron.0
OS: Darwin x64 19.6.0

I’m also using a system with a large number of Conda environments installed (285 total).

Expected behaviour

Python extension loads

Actual behaviour

Gets stuck on Python extension loading...

Logs

Python logs:

User belongs to experiment group 'pythonaa'
User belongs to experiment group 'pythonSendEntireLineToREPL'
User belongs to experiment group 'pythonNotDisplayLinterPrompt'
User belongs to experiment group 'pythonTensorboardExperimentcf'
User belongs to experiment group 'AlwaysDisplayTestExplorer - experiment'
User belongs to experiment group 'ShowPlayIcon - start'
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 'AA_testing - experiment'
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 'DeprecatePythonPath - control'
User belongs to experiment group 'RunByLine - experiment'
User belongs to experiment group 'CustomEditorSupport - control'

Extension host logs:

[2021-03-01 11:38:10.415] [exthost] [info] extension host started
[2021-03-01 11:38:10.438] [exthost] [info] ExtensionService#_doActivateExtension vscode.microsoft-authentication {"startup":false,"extensionId":{"value":"vscode.microsoft-authentication","_lower":"vscode.microsoft-authentication"},"activationEvent":"onAuthenticationRequest:microsoft"}
[2021-03-01 11:38:10.439] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/microsoft-authentication/dist/extension.js
[2021-03-01 11:38:10.456] [exthost] [info] ExtensionService#_doActivateExtension vscode.debug-auto-launch {"startup":true,"extensionId":{"value":"vscode.debug-auto-launch","_lower":"vscode.debug-auto-launch"},"activationEvent":"*"}
[2021-03-01 11:38:10.456] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/debug-auto-launch/dist/extension
[2021-03-01 11:38:10.458] [exthost] [info] ExtensionService#_doActivateExtension vscode.git {"startup":true,"extensionId":{"value":"vscode.github","_lower":"vscode.github"},"activationEvent":"*"}
[2021-03-01 11:38:10.458] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/git/dist/main
[2021-03-01 11:38:10.506] [exthost] [info] ExtensionService#_doActivateExtension dendron.dendron {"startup":true,"extensionId":{"value":"dendron.dendron-markdown-links","_lower":"dendron.dendron-markdown-links"},"activationEvent":"*"}
[2021-03-01 11:38:10.506] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/dendron.dendron-0.30.0/dist/extension.js
[2021-03-01 11:38:11.022] [exthost] [info] ExtensionService#_doActivateExtension dendron.dendron-markdown-shortcuts {"startup":true,"extensionId":{"value":"dendron.dendron-markdown-shortcuts","_lower":"dendron.dendron-markdown-shortcuts"},"activationEvent":"*"}
[2021-03-01 11:38:11.022] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/dendron.dendron-markdown-shortcuts-0.12.1/extension
[2021-03-01 11:38:11.026] [exthost] [info] ExtensionService#_doActivateExtension dendron.dendron-snippet-maker {"startup":true,"extensionId":{"value":"dendron.dendron-snippet-maker","_lower":"dendron.dendron-snippet-maker"},"activationEvent":"*"}
[2021-03-01 11:38:11.026] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/dendron.dendron-snippet-maker-0.1.6/out/extension.js
[2021-03-01 11:38:11.091] [exthost] [info] ExtensionService#_doActivateExtension Equinusocio.vsc-material-theme {"startup":true,"extensionId":{"value":"Equinusocio.vsc-material-theme","_lower":"equinusocio.vsc-material-theme"},"activationEvent":"*"}
[2021-03-01 11:38:11.091] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/equinusocio.vsc-material-theme-33.1.2/build/material.theme.config
[2021-03-01 11:38:11.098] [exthost] [info] ExtensionService#_doActivateExtension equinusocio.vsc-material-theme-icons {"startup":true,"extensionId":{"value":"equinusocio.vsc-material-theme-icons","_lower":"equinusocio.vsc-material-theme-icons"},"activationEvent":"*"}
[2021-03-01 11:38:11.098] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/equinusocio.vsc-material-theme-icons-1.2.2/out/src/extension
[2021-03-01 11:38:11.106] [exthost] [info] ExtensionService#_doActivateExtension kortina.vscode-markdown-notes {"startup":true,"extensionId":{"value":"kortina.vscode-markdown-notes","_lower":"kortina.vscode-markdown-notes"},"activationEvent":"*"}
[2021-03-01 11:38:11.106] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/kortina.vscode-markdown-notes-0.0.22/out/extension.js
[2021-03-01 11:38:11.179] [exthost] [info] ExtensionService#_doActivateExtension ms-vscode.js-debug {"startup":false,"extensionId":{"value":"ms-vscode.js-debug","_lower":"ms-vscode.js-debug"},"activationEvent":"onCommand:extension.js-debug.clearAutoAttachVariables"}
[2021-03-01 11:38:11.179] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/ms-vscode.js-debug/src/extension.js
[2021-03-01 11:38:11.323] [exthost] [info] ExtensionService#_doActivateExtension dendron.dendron-markdown-links {"startup":false,"extensionId":{"value":"dendron.dendron-markdown-links","_lower":"dendron.dendron-markdown-links"},"activationEvent":"*"}
[2021-03-01 11:38:11.323] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/dendron.dendron-markdown-links-0.6.19/dist/extension.js
[2021-03-01 11:38:11.728] [exthost] [info] ExtensionService#_doActivateExtension vscode.github-authentication {"startup":false,"extensionId":{"value":"vscode.github-authentication","_lower":"vscode.github-authentication"},"activationEvent":"onAuthenticationRequest:github"}
[2021-03-01 11:38:11.728] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/github-authentication/dist/extension.js
[2021-03-01 11:38:11.780] [exthost] [info] ExtensionService#_doActivateExtension vscode.github {"startup":true,"extensionId":{"value":"vscode.github","_lower":"vscode.github"},"activationEvent":"*"}
[2021-03-01 11:38:11.780] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/github/dist/extension.js
[2021-03-01 11:38:11.790] [exthost] [info] eager extensions activated
[2021-03-01 11:38:11.791] [exthost] [info] ExtensionService#_doActivateExtension vscode.emmet {"startup":false,"extensionId":{"value":"vscode.emmet","_lower":"vscode.emmet"},"activationEvent":"onStartupFinished"}
[2021-03-01 11:38:11.791] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/emmet/dist/node/emmetNodeMain
[2021-03-01 11:38:11.810] [exthost] [info] ExtensionService#_doActivateExtension vscode.merge-conflict {"startup":false,"extensionId":{"value":"vscode.merge-conflict","_lower":"vscode.merge-conflict"},"activationEvent":"onStartupFinished"}
[2021-03-01 11:38:11.810] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/merge-conflict/dist/mergeConflictMain
[2021-03-01 11:38:11.813] [exthost] [info] ExtensionService#_doActivateExtension vscode.testing-editor-contributions {"startup":false,"extensionId":{"value":"vscode.testing-editor-contributions","_lower":"vscode.testing-editor-contributions"},"activationEvent":"onStartupFinished"}
[2021-03-01 11:38:11.813] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/testing-editor-contributions/dist/extension.js
[2021-03-01 11:38:11.814] [exthost] [info] ExtensionService#_doActivateExtension eamodio.gitlens {"startup":false,"extensionId":{"value":"eamodio.gitlens","_lower":"eamodio.gitlens"},"activationEvent":"onStartupFinished"}
[2021-03-01 11:38:11.814] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/eamodio.gitlens-11.2.1/dist/gitlens
[2021-03-01 11:38:11.912] [exthost] [info] ExtensionService#_doActivateExtension esbenp.prettier-vscode {"startup":false,"extensionId":{"value":"esbenp.prettier-vscode","_lower":"esbenp.prettier-vscode"},"activationEvent":"onStartupFinished"}
[2021-03-01 11:38:11.912] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/esbenp.prettier-vscode-5.9.2/dist/extension
[2021-03-01 11:38:12.764] [exthost] [info] extension host terminating: received terminate message from renderer
[2021-03-01 11:38:13.705] [exthost] [info] extension host started
[2021-03-01 11:38:13.717] [exthost] [info] ExtensionService#_doActivateExtension ms-vscode-remote.remote-ssh {"startup":false,"extensionId":{"value":"ms-vscode-remote.remote-ssh","_lower":"ms-vscode-remote.remote-ssh"},"activationEvent":"onResolveRemoteAuthority:ssh-remote"}
[2021-03-01 11:38:13.717] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/ms-vscode-remote.remote-ssh-0.64.0/out/extension
[2021-03-01 11:38:13.770] [exthost] [info] exiting with code 0
[2021-03-01 11:38:18.087] [exthost] [info] ExtensionService#_doActivateExtension vscode.microsoft-authentication {"startup":false,"extensionId":{"value":"vscode.microsoft-authentication","_lower":"vscode.microsoft-authentication"},"activationEvent":"onAuthenticationRequest:microsoft"}
[2021-03-01 11:38:18.087] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/microsoft-authentication/dist/extension.js
[2021-03-01 11:38:18.098] [exthost] [info] ExtensionService#_doActivateExtension Equinusocio.vsc-material-theme {"startup":true,"extensionId":{"value":"Equinusocio.vsc-material-theme","_lower":"equinusocio.vsc-material-theme"},"activationEvent":"*"}
[2021-03-01 11:38:18.098] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/equinusocio.vsc-material-theme-33.1.2/build/material.theme.config
[2021-03-01 11:38:18.107] [exthost] [info] ExtensionService#_doActivateExtension equinusocio.vsc-material-theme-icons {"startup":true,"extensionId":{"value":"equinusocio.vsc-material-theme-icons","_lower":"equinusocio.vsc-material-theme-icons"},"activationEvent":"*"}
[2021-03-01 11:38:18.107] [exthost] [info] ExtensionService#loadCommonJSModule file:///Users/bbolte/.vscode-insiders/extensions/equinusocio.vsc-material-theme-icons-1.2.2/out/src/extension
[2021-03-01 11:38:18.178] [exthost] [info] eager extensions activated
[2021-03-01 11:38:18.799] [exthost] [info] ExtensionService#_doActivateExtension vscode.github-authentication {"startup":false,"extensionId":{"value":"vscode.github-authentication","_lower":"vscode.github-authentication"},"activationEvent":"onAuthenticationRequest:github"}
[2021-03-01 11:38:18.799] [exthost] [info] ExtensionService#loadCommonJSModule file:///Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/github-authentication/dist/extension.js

Remote server logs:

[2021-03-01 14:38:15.907] [remoteagent] [info] 

*
* Visual Studio Code Server
*
* Reminder: You may only use this software with Visual Studio family products,
* as described in the license https://aka.ms/vscode-remote/license
*


[2021-03-01 14:38:15.907] [remoteagent] [info] Extension host agent started.
[2021-03-01 14:38:16.238] [remoteagent] [info] [127.0.0.1][470f7752][ManagementConnection] New connection established.
[2021-03-01 14:38:16.414] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] New connection established.
[2021-03-01 14:38:17.103] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] <31522> Launched Extension Host Process.
[2021-03-01 14:38:17.437] [remoteagent] [info] Deleted from disk ms-python.python /home/bbolte/.vscode-server-insiders/extensions/ms-python.python-2021.2.576481509
[2021-03-01 14:38:40.204] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:39:02.011] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:39:22.941] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:39:43.220] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:40:03.502] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:40:23.798] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:40:44.082] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:41:04.365] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:41:24.649] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:41:44.930] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:42:05.217] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:42:25.497] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:42:45.779] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:43:06.055] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:43:26.335] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:43:46.616] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.
[2021-03-01 14:44:06.896] [remoteagent] [info] [127.0.0.1][d172f099][ExtensionHostConnection] The client has reconnected.

Remote extension host logs:

[2021-03-01 14:38:18.235] [exthost] [info] extension host started
[2021-03-01 14:38:18.502] [exthost] [info] ExtensionService#_doActivateExtension ms-toolsai.jupyter {"startup":false,"extensionId":{"value":"ms-toolsai.jupyter","_lower":"ms-toolsai.jupyter"},"activationEvent":"onLanguage:python"}
[2021-03-01 14:38:18.502] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/extensions/ms-toolsai.jupyter-2021.3.600686576/out/client/extension
[2021-03-01 14:38:18.685] [exthost] [info] ExtensionService#_doActivateExtension vscode.debug-auto-launch {"startup":true,"extensionId":{"value":"vscode.debug-auto-launch","_lower":"vscode.debug-auto-launch"},"activationEvent":"*"}
[2021-03-01 14:38:18.685] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/debug-auto-launch/dist/extension
[2021-03-01 14:38:18.688] [exthost] [info] ExtensionService#_doActivateExtension vscode.git {"startup":true,"extensionId":{"value":"vscode.github","_lower":"vscode.github"},"activationEvent":"*"}
[2021-03-01 14:38:18.688] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/git/dist/main
[2021-03-01 14:38:18.845] [exthost] [info] ExtensionService#_doActivateExtension vscode.github {"startup":true,"extensionId":{"value":"vscode.github","_lower":"vscode.github"},"activationEvent":"*"}
[2021-03-01 14:38:18.845] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/github/dist/extension.js
[2021-03-01 14:38:18.952] [exthost] [info] ExtensionService#_doActivateExtension vscode.emmet {"startup":false,"extensionId":{"value":"vscode.emmet","_lower":"vscode.emmet"},"activationEvent":"onStartupFinished"}
[2021-03-01 14:38:18.952] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/emmet/dist/node/emmetNodeMain
[2021-03-01 14:38:18.963] [exthost] [info] ExtensionService#_doActivateExtension vscode.merge-conflict {"startup":false,"extensionId":{"value":"vscode.merge-conflict","_lower":"vscode.merge-conflict"},"activationEvent":"onStartupFinished"}
[2021-03-01 14:38:18.963] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/merge-conflict/dist/mergeConflictMain
[2021-03-01 14:38:18.966] [exthost] [info] ExtensionService#_doActivateExtension vscode.testing-editor-contributions {"startup":false,"extensionId":{"value":"vscode.testing-editor-contributions","_lower":"vscode.testing-editor-contributions"},"activationEvent":"onStartupFinished"}
[2021-03-01 14:38:18.966] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/testing-editor-contributions/dist/extension.js
[2021-03-01 14:38:18.967] [exthost] [info] eager extensions activated
[2021-03-01 14:38:18.987] [exthost] [info] ExtensionService#_doActivateExtension ms-vscode.js-debug {"startup":false,"extensionId":{"value":"ms-vscode.js-debug","_lower":"ms-vscode.js-debug"},"activationEvent":"onCommand:extension.js-debug.clearAutoAttachVariables"}
[2021-03-01 14:38:18.987] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/bin/e590188f17162393f50feec19263398e6fe02d13/extensions/ms-vscode.js-debug/src/extension.js
[2021-03-01 14:38:19.523] [exthost] [info] ExtensionService#_doActivateExtension ms-python.python {"startup":false,"extensionId":{"value":"ms-python.vscode-pylance","_lower":"ms-python.vscode-pylance"},"activationEvent":"onLanguage:python"}
[2021-03-01 14:38:19.523] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/extensions/ms-python.python-2021.2.582707922/out/client/extension
[2021-03-01 14:38:22.516] [exthost] [info] ExtensionService#_doActivateExtension ms-python.vscode-pylance {"startup":false,"extensionId":{"value":"ms-python.vscode-pylance","_lower":"ms-python.vscode-pylance"},"activationEvent":"onLanguage:python"}
[2021-03-01 14:38:22.516] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2021.2.4/dist/extension.bundle.js

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Reactions:2
  • Comments:9 (3 by maintainers)

github_iconTop GitHub Comments

4reactions
chdsbdcommented, Apr 7, 2021

Also, what happens if you put "python.experiments.enabled": false in your settings.json? (And please provide the content of your settings.json.)

I just ran into this issue and disabling python.experiments.enabled allowed VSCode Python to load. Thanks @ericsnowcurrently!

2reactions
ericsnowcurrentlycommented, Mar 4, 2021

@codekansas , thanks for getting in touch with us. It definitely seems like something is wrong. For example, the following lines in the remote extension host logs are strange:

[2021-03-01 14:38:19.523] [exthost] [info] ExtensionService#_doActivateExtension ms-python.python {"startup":false,"extensionId":{"value":"ms-python.vscode-pylance","_lower":"ms-python.vscode-pylance"},"activationEvent":"onLanguage:python"}
[2021-03-01 14:38:19.523] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/extensions/ms-python.python-2021.2.582707922/out/client/extension

[2021-03-01 14:38:22.516] [exthost] [info] ExtensionService#_doActivateExtension ms-python.vscode-pylance {"startup":false,"extensionId":{"value":"ms-python.vscode-pylance","_lower":"ms-python.vscode-pylance"},"activationEvent":"onLanguage:python"}
[2021-03-01 14:38:22.516] [exthost] [info] ExtensionService#loadCommonJSModule file:///home/bbolte/.vscode-server-insiders/extensions/ms-python.vscode-pylance-2021.2.4/dist/extension.bundle.js

Note how the two pairs look almost the same. For the first pair, which has _doActivateExtension ms-python.python, it shows "extensionId":{"value":"ms-python.vscode-pylance", ...}. What happens if you disable the pylance extension? What about disabling all other extensions?

Also, what happens if you put "python.experiments.enabled": false in your settings.json? (And please provide the content of your settings.json.)

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Creating new Integrated Terminal doesn't take selected workspace into account when activating environment

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Syntax colorization for imported classes and functions