Breakpoint in Notebook Cell doesn't stop when VSCode is running on Windows and Kernel running on Linux

[jersonchua]

Applies To

• Notebooks (.ipynb files)
• Interactive Window and/or Cell Scripts (.py files with #%% markers)

What happened?

I'm facing is the same issue reported in #11396
with slightly different setup. My kernel is running in a linux container specifically https://hub.docker.com/layers/amazon/aws-glue-libs/glue_libs_4.0.0_image_01/images/sha256-bd642d06ee69c7eac710080091c5c76dfbf28005bb81541d475ab5846851368c?context=explore

ipykernel: 6.20.2
debugpy: 1.80
python: 3.10.2

VS Code Version

1.88.1

Jupyter Extension Version

v2023.11.1003402403

Jupyter logs

sourcePath in dumpCell has forward slash

2024-08-09 15:01:14.644 info: < {"header": {"msg_id": "491ec245-2cadc611fe3575525aa4b73a_338_103", "msg_type": "debug_reply", "username": "glue_user", "session": "491ec245-2cadc611fe3575525aa4b73a", "date": "2024-08-09T19:01:14.570370Z", "version": "5.3"}, "msg_id": "491ec245-2cadc611fe3575525aa4b73a_338_103", "msg_type": "debug_reply", "parent_header": {"date": "2024-08-09T19:01:14.093000Z", "msg_id": "21d47a00-7e31-4fea-b50b-b03e371a1bc5", "msg_type": "debug_request", "session": "bdc61c4a-6655-4165-bfc7-0e1360b7751e", "username": "", "version": "5.2"}, "metadata": {}, "content": {"type": "response", "request_seq": 15, "success": true, "command": "dumpCell", "body": {"sourcePath": "/tmp/ipykernel_338/2523026605.py"}}, "buffers": [], "channel": "control"}

path in setBreakpoints has back slash. I think this is caused by the path normalization logic in the extension.

2024-08-09 15:01:14.662 info: > {"buffers":[],"channel":"control","content":{"seq":10,"type":"request","command":"setBreakpoints","arguments":{"source":{"name":"Untitled-1.ipynb","path":"\tmp\ipykernel_338\2523026605.py"},"lines":[2],"breakpoints":[{"line":2}],"sourceModified":false}},"header":{"date":"2024-08-09T19:01:14.662Z","msg_id":"c5f0353e-a3d8-4cdf-b14c-df854ef4c0ae","msg_type":"debug_request","session":"bdc61c4a-6655-4165-bfc7-0e1360b7751e","username":"","version":"5.2"},"metadata":{},"parent_header":{}}

And because the path has the back slash, the debugger returned "Breakpoint in file that does not exist"
2024-08-09 15:01:14.737 info: < {"header": {"msg_id": "491ec245-2cadc611fe3575525aa4b73a_338_109", "msg_type": "debug_reply", "username": "glue_user", "session": "491ec245-2cadc611fe3575525aa4b73a", "date": "2024-08-09T19:01:14.669487Z", "version": "5.3"}, "msg_id": "491ec245-2cadc611fe3575525aa4b73a_338_109", "msg_type": "debug_reply", "parent_header": {"date": "2024-08-09T19:01:14.662000Z", "msg_id": "c5f0353e-a3d8-4cdf-b14c-df854ef4c0ae", "msg_type": "debug_request", "session": "bdc61c4a-6655-4165-bfc7-0e1360b7751e", "username": "", "version": "5.2"}, "metadata": {}, "content": {"seq": 25, "type": "response", "request_seq": 10, "success": true, "command": "setBreakpoints", "body": {"breakpoints": [{"verified": false, "id": 1, "message": "Breakpoint in file that does not exist.", "source": {"name": "Untitled-1.ipynb", "path": "\tmp\ipykernel_338\2523026605.py"}, "line": 2}]}}, "buffers": [], "channel": "control"}

Coding Language and Runtime Version

No response

Language Extension Version (if applicable)

No response

Anaconda Version (if applicable)

No response

Running Jupyter locally or remotely?

None

[DonJayamanne]

Thank you for filing this issue, are you able to update ipykernel & debugpyto the latest version and see if this repros
Also, please update your version of VS Code, Jupyter and Python extensions to the latest versions (as you have some fairly old versions).

[jersonchua]

@DonJayamanne I upgraded to debugpy1.8.5 and ipykernel 6.29.5. Breakpoint still doesn't stop and I'm also seeing the same "Breakpoint in file that does not exist." response back to the extension.

2024-08-12 16:27:52.939 info: < {"header": {"msg_id": "92864651-d7ccc49aafaa8fea48fc6f90_890_199", "msg_type": "debug_reply", "username": "glue_user", "session": "92864651-d7ccc49aafaa8fea48fc6f90", "date": "2024-08-12T20:27:52.918384Z", "version": "5.3"}, "msg_id": "92864651-d7ccc49aafaa8fea48fc6f90_890_199", "msg_type": "debug_reply", "parent_header": {"date": "2024-08-12T20:27:52.879000Z", "msg_id": "2980f59e-2749-4adb-8057-8c203786dd59", "msg_type": "debug_request", "session": "a9817bd4-ad93-4961-9ff0-67ccdd12bbd8", "username": "", "version": "5.2"}, "metadata": {}, "content": {"seq": 26, "type": "response", "request_seq": 10, "success": true, "command": "setBreakpoints", "body": {"breakpoints": [{"verified": false, "id": 0, "message": "Breakpoint in file that does not exist.", "source": {"name": "Untitled-1.ipynb", "path": "\tmp\ipykernel_890\3773950048.py"}, "line": 1}]}}, "buffers": [], "channel": "control"}

[jersonchua]

Looking at the latest version of the code, I see that path.normalize is still getting called for sourcePath. From I understand in the code, path.normalize is the one flipping / to \ in the sourcePath. @adam-zlatniczki tried to fix this before as you can see in #11396

vscode-jupyter/src/interactive-window/debugger/jupyter/kernelDebugAdapter.ts

Line 90 in 2a11eb0

const norm = path.normalize((response as IDumpCellResponse).sourcePath);

vscode-jupyter/src/notebooks/debugger/kernelDebugAdapter.ts

Line 23 in 2a11eb0

const norm = path.normalize((response as IDumpCellResponse).sourcePath);

[DonJayamanne]

Duplicate of #9636