microsoft / microsoft/vscode-python-debugger
Debugger 'hangs' when working with `pixi` environments
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Seit 30.6.2025.
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Beschreibung
Type: Bug
Behaviour
Attempting to run the debugger in pixi based projects (i.e., the environment is within the .pixi/default folder results in failures.
The debugger will 'hang' without showing any error or warning. This is new behaviour, as pixi projects did not have this problem before.
Steps to reproduce:
- Use linux (I use Fedora 41)
- Create a small projext via
pixi init --format pyproject - In vscode, select
defaultas the python environment for that project. - Write a dummy hello world script, put a breakpoint.
When debugging that file, you'll see the launcher 'hang'.
After a while you'll get the following:
Oddly enough, debugging works well for .ipydb files.
Diagnostic data
launch.json configuration
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Python Debugger: Current File",
"type": "debugpy",
"request": "launch",
"program": "${file}",
"console": "integratedTerminal"
}
]
}
Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)
**2025-06-26 15:59:34.035 [info] Send text to terminal: /home/ivanruizmanuel/.pixi/bin/pixi shell --manifest-path /home/ivanruizmanuel/Documents/git/module_powerplants/pixi.toml
2025-06-26 16:00:28.133 [info] Send text to terminal: /home/ivanruizmanuel/.pixi/bin/pixi shell --manifest-path /home/ivanruizmanuel/Documents/git/module_powerplants/pixi.toml
2025-06-26 16:01:43.096 [info] Send text to terminal: /home/ivanruizmanuel/.pixi/bin/pixi shell --manifest-path /home/ivanruizmanuel/Documents/git/module_powerplants/pixi.toml
**
Output for Python Debugger in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python Debugger)
2025-06-26 16:00:27.865 [info] Debugging using the editor button 'Debug in terminal'
2025-06-26 16:00:27.867 [info] Getting configurations for workspace
2025-06-26 16:00:27.868 [info] Using configuration in launch.json
2025-06-26 16:00:27.956 [info] Using the only workspaceFolder found: /home/ivanruizmanuel/Documents/git/module_powerplants
2025-06-26 16:00:27.993 [info] Resolving launch configuration with substituted variables
2025-06-26 16:00:27.993 [info] Using the only workspaceFolder found: /home/ivanruizmanuel/Documents/git/module_powerplants
2025-06-26 16:00:28.002 [info] DAP Server launched with command: /home/ivanruizmanuel/Documents/git/module_powerplants/.pixi/envs/default/bin/python /home/ivanruizmanuel/.vscode/extensions/ms-python.debugpy-2025.8.0-linux-x64/bundled/libs/debugpy/adapter
2025-06-26 16:00:28.125 [info] Received 'debugpySockets' event from debugpy.
2025-06-26 16:00:28.127 [info] Received 'debugpySockets' event from debugpy.
2025-06-26 16:00:28.127 [info] Received 'debugpySockets' event from debugpy.
Extension version: 2025.8.0
VS Code version: Code 1.101.0 (dfaf44141ea9deb3b4096f7cd6d24e00c147a4b1, 2025-06-11T15:00:50.123Z)
OS version: Linux x64 6.14.9-200.fc41.x86_64
Modes:
- Python version (& distribution if applicable, e.g. Anaconda): 3.13.3
- Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Unknown
| Item | Value |
|---|---|
| CPUs | 13th Gen Intel(R) Core(TM) i7-13700H (20 x 3273) |
| 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: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off webnn: disabled_off |
| Load (avg) | 1, 1, 1 |
| Memory (System) | 15.24GB (9.02GB free) |
| Process Argv | |
| Screen Reader | no |
| VM | 0% |
| DESKTOP_SESSION | gnome |
| XDG_CURRENT_DESKTOP | GNOME |
| XDG_SESSION_DESKTOP | gnome |
| XDG_SESSION_TYPE | wayland |
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