Slowdown during initial run of python code after latest vs code update

[Erika-cm]

Type: Bug

Behaviour

After the latest vs code update (Version: 1.94.1) I noticed that when I run any python code, there is a noticeable pause (2 to 4 seconds) before it launches. I have tested multiple .py files and it happens with all of them. Once the code is running there are no other notable issues.

Steps to reproduce:

1. run any .py file on vs code version 1.94.1.

Diagnostic data

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

XXX

Extension version: 2024.16.0
VS Code version: Code 1.94.1 (e10f2369d0d9614a452462f2e01cdc4aa9486296, 2024-10-05T05:44:32.189Z)
OS version: Windows_NT x64 10.0.19045
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.2
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Global
• Value of the python.languageServer setting: Default

User Settings

languageServer: "Pylance"

Installed Extensions

Extension Name	Extension Id	Version
Draw.io Integration	hediet.vscode-drawio	1.6.6
JavaScript Debugger	ms-vscode.js-debug	1.94.0
JavaScript Debugger Companion Extension	ms-vscode.js-debug-companion	1.1.3
Pylance	ms-python.vscode-pylance	2024.10.1
Python	ms-python.python	2024.16.0
Python Debugger	ms-python.debugpy	2024.10.0
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.10

System Info

Item	Value
CPUs	AMD Ryzen 7 5800X 8-Core Processor (16 x 3800)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on 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 skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.93GB (6.64GB free)
Process Argv	--crash-reporter-id 8bbcc727-e6fc-42c9-9482-9a0aabed201b
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492cf:30256860
vscod805:30301674
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
a9j8j154:30646983
962ge761:30959799
pythongtdpath:30769146
pythonnoceb:30805159
asynctok:30898717
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
accentitlementst:30995554
dsvsc016:30899300
dsvsc017:30899301
dsvsc018:30899302
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
0ee40948:31013168
a69g1124:31058053
dvdeprecation:31068756
dwnewjupytercf:31046870
newcmakeconfigv2:31071590
impr_priority:31102340
nativerepl2:31139839
refactort:31108082
pythonrstrctxt:31112756
flighttreat:31134774
wkspc-onlycs-t:31132770
wkspc-ranged-t:31151552
cf971741:31144450
autoexpandse:31146404
notype1:31151523
cc771715:31146322

[karthiknadig]

Duplicate of #24239