microsoft
Error parsing pth file
Type: Bug
2025-05-27 22:12:49.423 [info] (Client) Pylance async client (2025.5.100) started with python extension (2025.7.2025052701) 2025-05-27 22:12:52.759 [info] [Info - 10:12:52 PM] (2536) Server root directory: file:///c%3A/Users/hunte/.vscode-insiders/extensions/ms-python.vscode-pylance-2025.5.100/dist 2025-05-27 22:12:52.759 [info] [Info - 10:12:52 PM] (2536) Pylance language server 2025.5.100 (pyright version 1.1.400, commit b962ffc2) starting 2025-05-27 22:12:52.805 [info] [Info - 10:12:52 PM] (2536) Starting service instance "astToolFactory" for workspace "c:\apps\astToolFactory" 2025-05-27 22:12:52.907 [info] [Info - 10:12:52 PM] (2536) Loading pyproject.toml file at c:\apps\astToolFactory\pyproject.toml 2025-05-27 22:12:52.909 [info] [Info - 10:12:52 PM] (2536) Setting environmentName for service "astToolFactory": "3.13.3 (.venv venv)" 2025-05-27 22:12:52.911 [info] [Info - 10:12:52 PM] (2536) Setting pythonPath for service "astToolFactory": "C:\apps\astToolFactory.venv\Scripts\python.exe" 2025-05-27 22:12:52.912 [info] [Info - 10:12:52 PM] (2536) No include entries specified; assuming c:\apps\astToolFactory 2025-05-27 22:12:53.016 [info] [Info - 10:12:53 PM] (2536) Assuming Python version 3.13.3.final.0 2025-05-27 22:12:53.194 [info] [Info - 10:12:53 PM] (2536) Found 13 source files 2025-05-27 22:12:53.233 [info] [Info - 10:12:53 PM] (2536) Loading pyproject.toml file at c:\apps\astToolFactory\pyproject.toml 2025-05-27 22:12:53.234 [info] [Info - 10:12:53 PM] (2536) Setting environmentName for service "astToolFactory": "3.13.3 (.venv venv)" 2025-05-27 22:12:53.235 [info] [Info - 10:12:53 PM] (2536) Setting pythonPath for service "astToolFactory": "C:\apps\astToolFactory.venv\Scripts\python.exe" 2025-05-27 22:12:53.235 [info] [Info - 10:12:53 PM] (2536) No include entries specified; assuming c:\apps\astToolFactory 2025-05-27 22:12:53.352 [info] [Info - 10:12:53 PM] (2536) Assuming Python version 3.13.3.final.0 2025-05-27 22:12:53.509 [info] [Info - 10:12:53 PM] (2536) Found 13 source files 2025-05-27 22:12:53.806 [info] [Info - 10:12:53 PM] (2536) BG: Priority queue background worker(2) root directory: file:///c%3A/Users/hunte/.vscode-insiders/extensions/ms-python.vscode-pylance-2025.5.100/dist 2025-05-27 22:12:53.807 [info] [Info - 10:12:53 PM] (2536) BG: Priority queue background worker(2) started 2025-05-27 22:12:55.714 [info] Error parsing pth file: Error processing line 7 of /c:\apps\astToolFactory.venv\Lib\site-packages/pywin32.pth:
2025-05-27 22:12:55.714 [info] Error parsing pth file:
Error parsing pth file: Traceback (most recent call last):
Error parsing pth file: File "
Error parsing pth file: File "
2025-05-27 22:12:55.714 [info] Error parsing pth file: File "/$c$/apps\astToolFactory.venv\Lib\site-packages\win32\lib/pywin32_bootstrap.py", line 20, in
Error parsing pth file: os.add_dll_directory(path)
2025-05-27 22:12:55.715 [info] Error parsing pth file: ^^^^^^^^^^^^^^^^^^^^
Error parsing pth file: AttributeError: module 'os' has no attribute 'add_dll_directory'
Error parsing pth file: Remainder of file ignored
2025-05-27 22:12:55.715 [info] Error parsing pth file:
2025-05-27 22:13:03.635 [info] [Info - 10:13:03 PM] (2536) BG: Indexer background runner(4) root directory: file:///c%3A/Users/hunte/.vscode-insiders/extensions/ms-python.vscode-pylance-2025.5.100/dist (index)
2025-05-27 22:13:03.637 [info] [Info - 10:13:03 PM] (2536) BG: Indexing(4) started
2025-05-27 22:13:03.919 [info] [Info - 10:13:03 PM] (2536) BG: scanned(4) 735 files over 1 exec env
2025-05-27 22:13:08.563 [info] [Info - 10:13:08 PM] (2536) BG: [IDX(4)] Long operation: index execution environment file:///c%3A/apps/astToolFactory (4052ms)
2025-05-27 22:13:08.564 [info] [Info - 10:13:08 PM] (2536) BG: [IDX(4)] Long operation: index packages file:///c%3A/apps/astToolFactory (4437ms)
2025-05-27 22:13:08.564 [info] [Info - 10:13:08 PM] (2536) BG: indexed(4) 735 files over 1 exec env
2025-05-27 22:13:08.792 [info] [Info - 10:13:08 PM] (2536) BG: Indexing finished(4).
2025-05-27 22:14:58.070 [info] [Info - 10:14:58 PM] (2536) Starting service instance "
Extension version: 2025.5.100 VS Code version: Code - Insiders 1.101.0-insider (9bb394b245ee20e869120eefdc6929c580029adf, 2025-05-27T06:34:19.809Z) OS version: Windows_NT x64 10.0.26100 Modes:
System Info
| Item | Value |
|---|---|
| CPUs | AMD Ryzen 7 5700U with Radeon Graphics (16 x 1797) |
| 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) | 12.90GB (2.38GB free) |
| Process Argv | --crash-reporter-id 1ffa83f2-6d65-4589-b9e5-f941a87a12e2 |
| Screen Reader | no |
| VM | 0% |
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Hi @hunterhogan, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.
Potentially Related Issues
- Support path (*.pth) files in extra paths: discussion on scanning
.pthfiles underextraPaths(#1709)
https://github.com/microsoft/pylance-release/issues/1709 - Crash on
.pthreferencing.egg: Pylance crashes when parsing a.pththat points to an.egg(#5009)
https://github.com/microsoft/pylance-release/issues/5009
The team will respond to your issue shortly. Please note this is a trial feature and may not be fully accurate. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or was incorrect, please give it a 👎. Your feedback helps us improve!
![github-actions[bot] avatar](https://avatars.githubusercontent.com/in/15368?v=4 "Published by a pub.dev verified publisher"){kind=small}
Hi @hunterhogan, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.
Potentially Related Issues
* Support path (*.pth) files in extra paths: discussion on scanning `.pth` files under `extraPaths` ([Support path (*.pth) files in extra paths #1709](https://github.com/microsoft/pylance-release/issues/1709)) [Support path (*.pth) files in extra paths #1709](https://github.com/microsoft/pylance-release/issues/1709) * Crash on `.pth` referencing `.egg`: Pylance crashes when parsing a `.pth` that points to an `.egg` ([Pylance crashed immediately after open VSCode #5009](https://github.com/microsoft/pylance-release/issues/5009)) [Pylance crashed immediately after open VSCode #5009](https://github.com/microsoft/pylance-release/issues/5009)The team will respond to your issue shortly. Please note this is a trial feature and may not be fully accurate. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or was incorrect, please give it a 👎. Your feedback helps us improve!
Thank you for wasting my time.
(.venv) C:\apps\astToolFactory>py
Python 3.13.3 (tags/v3.13.3:6280bb5, Apr 8 2025, 14:47:33) [MSC v.1943 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from os import add_dll_directory
>>>
Oh I bet I know what the problem is. Pywin32 is using Win32 only functions. The pth eval stuff is using the WASI version of python to run the pth file and it is actually a linux build of CPython.
Pth support doesn't work with pywin32. We might want to special case this scenario.
os.add_dll_directory is windows only:
https://docs.python.org/3/library/os.html#os.add_dll_directory
Thanks for creating the issue but it shouldn't impact functionality in anyway. The error just points out we may not be able to load some pth files.
(.venv) C:\apps\astToolFactory>pip show pywin32
Name: pywin32
Version: 310
Summary: Python for Window Extensions
Home-page: https://github.com/mhammond/pywin32
Author: Mark Hammond (et al)
Author-email: [email protected]
License: PSF
Location: C:\apps\astToolFactory\.venv\Lib\site-packages
Requires:
Required-by: jupyter_core
idk if I installed it, so: del venv, py -m venv, upgrade pip, pip install -e .[testing]. restart vs code. therefore, a clean slate.
(.venv) C:\apps\astToolFactory>ver
Microsoft Windows [Version 10.0.26100.4061]
(.venv) C:\apps\astToolFactory>py -V
Python 3.13.3
(.venv) C:\apps\astToolFactory>pip show pywin32
WARNING: Package(s) not found: pywin32
repo at the exact commit I'm using locally https://github.com/hunterhogan/astToolFactory/commit/9434c936ec308b68eebc9dfe55fdc61b10cbc984 including install file (above) and notebook (below)
I don't do anything else at all in vs code or the repo. open notebook, run cell: prompted to install kernel. install.
(.venv) C:\apps\astToolFactory>pip show pywin32
Name: pywin32
Version: 310
Summary: Python for Window Extensions
Home-page: https://github.com/mhammond/pywin32
Author: Mark Hammond (et al)
Author-email: [email protected]
License: PSF
Location: C:\apps\astToolFactory\.venv\Lib\site-packages
Requires:
Required-by: jupyter_core
Therefore, it was installed by VS Code. and the errors are back in the log.
The errors are not going to affect anything though. They're just an indicator to us that there's a pth file we can't load. The error should have no impact on functionality.
I'm leaving the bug open so we can stop checking this particular pth file and stop polluting the log.