Cannot restart unit test

[iiwolf]

Type: Bug

Behaviour

When trying to restart a Python unit test, unit test adatper crashes with "Error: Could not connect to RUN_TEST_IDS_PIPE: [Errno 2] No such file or directory: '\\.\pipe\python-test-ids-20dfe7a7d2563588ca21-sock'"

This started recently after a VSCode or Python extension update specifically, not sure which. My Python environment and version has stayed the same. I've uninstalled all other extensions, cleared cache, and restarted VSCode. This now occurs on multiple machines, both at home and at work. Been a month or two now and I've just been dealing with it.

Steps to reproduce:

1. Debug Python unit test and hit breakpoint
2. Click restart or CTRL+SHIFT+5

Diagnostic data

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

Error: Could not connect to RUN_TEST_IDS_PIPE: [Errno 2] No such file or directory: '\\\\.\\pipe\\python-test-ids-a73e2016afb4903ed58f-sock'
Traceback (most recent call last):
  File "c:\Users\WolfI\.vscode\extensions\ms-python.python-2024.12.2-win32-x64\python_files\unittestadapter\execution.py", line 294, in <module>
    with socket_manager.PipeManager(run_test_ids_pipe) as sock:
  File "c:\Users\WolfI\.vscode\extensions\ms-python.python-2024.12.2-win32-x64\python_files\testing_tools\socket_manager.py", line 17, in __enter__
    return self.connect()
  File "c:\Users\WolfI\.vscode\extensions\ms-python.python-2024.12.2-win32-x64\python_files\testing_tools\socket_manager.py", line 24, in connect
    self._writer = open(self.name, "w", encoding="utf-8")  # noqa: SIM115, PTH123
FileNotFoundError: [Errno 2] No such file or directory: '\\\\.\\pipe\\python-test-ids-a73e2016afb4903ed58f-sock'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\WolfI\Anaconda3\envs\clean-3.10.13\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Users\WolfI\Anaconda3\envs\clean-3.10.13\lib\runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy\__main__.py", line 39, in <module>
    cli.main()
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy/..\debugpy\server\cli.py", line 430, in main
    run()
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy/..\debugpy\server\cli.py", line 284, in run_file
    runpy.run_path(target, run_name="__main__")
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", line 321, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", line 135, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "c:\Users\WolfI\.vscode\extensions\ms-python.debugpy-2024.10.0-win32-x64\bundled\libs\debugpy\_vendored\pydevd\_pydevd_bundle\pydevd_runpy.py", line 124, in _run_code
    exec(code, run_globals)
  File "c:\Users\WolfI\.vscode\extensions\ms-python.python-2024.12.2-wi

Extension version: 2024.12.2
VS Code version: Code 1.92.0 (b1c0a14de1414fcdaa400695b4db1c0799bc3124, 2024-07-31T23:26:45.634Z)
OS version: Windows_NT x64 10.0.19045
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.10.13
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Conda
• Value of the python.languageServer setting: Pylance

User Settings

languageServer: "Pylance"

testing
• unittestArgs: "<placeholder>"
• unittestEnabled: true

Installed Extensions

Extension Name	Extension Id	Version
JavaScript Debugger	ms-vscode.js-debug	1.92.0
JavaScript Debugger Companion Extension	ms-vscode.js-debug-companion	1.1.3
Pylance	ms-python.vscode-pylance	2024.7.1
Python	ms-python.python	2024.12.2
Python Debugger	ms-python.debugpy	2024.10.0
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.9

System Info

Item	Value
CPUs	Intel(R) Xeon(R) W-11855M CPU @ 3.20GHz (12 x 3187)
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)	63.21GB (44.45GB free)
Process Argv	--folder-uri file:///c%3A/Users/WolfI/projects/misc/mre/cant_restart_vscode_tests --crash-reporter-id eedcbace-8dcd-4492-aada-8260e9525837
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscorecescf:30445987
vscod805cf:30301675
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
2i9eh265:30646982
962ge761:30959799
pythongtdpath:30769146
welcomedialogc:30910334
pythonnoceb:30805159
asynctok:30898717
pythonregdiag2:30936856
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
accentitlementsc:30995553
dsvsc016:30899300
dsvsc017:30899301
dsvsc018:30899302
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
0ee40948:31013168
pythoncenvpt:31062603
a69g1124:31058053
dvdeprecation:31068756
dwnewjupytercf:31046870
impr_priority:31102340
refactort:31108082
ccpltc:31103427
pythonrstrctxtcf:31103194
wkspc-onlycs-c:31106320

[iiwolf]

Also, when I use "Python: report an issue" from VSCode, the template above has the behavior and steps to reproduce sections duplicated? Is that intentional? I even restarted the process to make sure I didn't do something wrong, but it still did it. I deleted it as it made things messy.

[iiwolf]

While the error message is different I found the thread discussing a similar issue: microsoft/vscode-python-debugger#338 (comment)

As you can see I actually even commented on this (/facepalm) but couldn't find the thread again after coming back from vacation!

I see you are assigned to that one as well @eleanorjboyd. I'll leave it up to you to close this one if you think it's the same or leave it open for the time being.

Thanks!

[sahilmodi]

I am also seeing this issue

[eleanorjboyd]

this should be fixed by our work on this issue: #23279

[eleanorjboyd]

closing due to the work we did to fix this with the named-pipes. Let me know if you are still seeing this issue and I can reopen. Thanks!