VSCode python debugger does not go inside the third party library code even with justmycode set to false on 1.90 VS code

[uvnikgupta]

This was working fine till I got a message in my python extension that I should restart it. After that it has stopped working.

Environment data

• debugpy version: 1.6.7
• OS and version: Windows 10 Enterprise
• Python version : 3.11.9 in Anaconda environment
• Using VS Code or Visual Studio: VSCode

Actual behavior

Python code:

import yaml

with open("./config/config.yml", "r") as f:
    data = yaml.safe_load(f)

launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "File",
            "type": "debugpy",
            "request": "launch",
            "program": "${file}",
            "console": "integratedTerminal",
            "justMyCode": false
        }
    ]
}

debug point at data = yaml.safe_load(f)
I can ctrl+click and go inside yaml.safe_load() and set a breakpoint in that method but when debugging, the control remain in the my code and does not go inside the safe_load(). Instead I can see that there is a light green debug arrow and a light green horizonal bar in that code. Pressing next jumps to the next statement inside that code but the control goes back to my code and I have to come back to safe_load() to see where the green arrow has moved to.

Please refer the below pics:

Expected behavior

The control, Yellow debug point and the horizontal bar should go inside the safe_load()

[couteau]

I've had the same issue since VS Code updated to v 1.90, using the debugger extension v2024.6.0.

[uvnikgupta]

I've had the same issue since VS Code updated to v 1.90, using the debugger extension v2024.6.0.

Were you able to find a solution to resolve this issue?

[uvnikgupta]

Found a workaround.
For those who are still scratching their head, downgrade your VS code to v1.89 from here

[rchiodo]

Thanks for the issue. I can repro. It looks like VS code isn't allowing stepping into the just my code frames, even though the debugger is returning a stop event inside those frames:

D+00015.797: Server[1] --> {
                 "pydevd_cmd_id": 502,
                 "seq": 92,
                 "type": "response",
                 "request_seq": 32,
                 "success": true,
                 "command": "stackTrace",
                 "body": {
                     "stackFrames": [
                         {
                             "id": 12,
                             "name": "load",
                             "line": 79,
                             "column": 1,
                             "source": {
                                 "path": "C:\\Users\\rchiodo\\source\\testing\\test_stepinto\\.venv\\Lib\\site-packages\\yaml\\__init__.py",
                                 "sourceReference": 0
                             },
                             "presentationHint": "subtle"
                         },
                         {
                             "id": 10,
                             "name": "safe_load",
                             "line": 125,
                             "column": 1,
                             "source": {
                                 "path": "C:\\Users\\rchiodo\\source\\testing\\test_stepinto\\.venv\\Lib\\site-packages\\yaml\\__init__.py",
                                 "sourceReference": 0
                             },
                             "presentationHint": "subtle"
                         },
                         {
                             "id": 2,
                             "name": "<module>",
                             "line": 4,
                             "column": 1,
                             "source": {
                                 "path": "C:\\Users\\rchiodo\\source\\testing\\test_stepinto\\test.py",
                                 "sourceReference": 0
                             }
                         },
                         {
                             "id": 5,
                             "name": "_run_code",
                             "line": 88,
                             "column": 1,
                             "source": {
                                 "path": "C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0\\Lib\\runpy.py",
                                 "sourceReference": 0
                             },
                             "presentationHint": "subtle"
                         },
                         {
                             "id": 6,
                             "name": "_run_module_as_main",
                             "line": 198,
                             "column": 1,
                             "source": {
                                 "path": "C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0\\Lib\\runpy.py",
                                 "sourceReference": 0
                             },
                             "presentationHint": "subtle"
                         }
                     ],
                     "totalFrames": 6
                 }
             }

[rchiodo]

And I can also verify switching back to 1.89 fixes the problem for me too. This is likely a VS code issue then.

[rchiodo]

Closing in favor of the VS code issue.

[nguyenvanhuybk99]

I got same issue when upgrade vscode to 1.90, the debugger have green line in library when debug, but it always switch to outside of library, maybe an issue of vscode

[rchiodo]

This is the VS code issue causing the problem:
microsoft/vscode#214433

It's marked as a candidate so it should ship soon.

[joanPlepi]

And I can also verify switching back to 1.89 fixes the problem for me too. This is likely a VS code issue then.

I downgraded visual studio to version 1.89.1 and it is still failing to stop in a breakpoint inside a package:

Version: 1.89.1
Commit: dc96b837cf6bb4af9cd736aa3af08cf8279f7685
Date: 2024-05-07T05:14:32.757Z
Electron: 28.2.8
ElectronBuildId: 27744544
Chromium: 120.0.6099.291
Node.js: 18.18.2
V8: 12.0.267.19-electron.0
OS: Darwin arm64 23.4.0

My configuration launch.json is as follows:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python Debugger: Current File",
            "type": "debugpy",
            "request": "launch",
            "program": "${file}",
            "stopOnEntry": true,
            "justMyCode": false
        },
        {
            "name": "Python Debugger: Python File",
            "type": "debugpy",
            "request": "launch",
            "program": "${file}",
            "stopOnEntry": true,
            "justMyCode": false
        }
    ]
}