Bug: Apply Code Fails On .ipynb In VS Code

by ADMIN 43 views

Hey guys! Today, we're diving into a peculiar bug reported in the VS Code environment. It seems the 'apply code' function is misbehaving when dealing with Jupyter Notebook files (.ipynb). Specifically, users are finding that when they try to apply code changes to .ipynb files, the process consistently fails. However, when the same operation is performed on .py files, it goes through without a hitch. Let's break down the details and see what might be causing this issue.

The Issue

The core problem lies in the inability of the VS Code extension to properly apply code changes to .ipynb files. This is a significant inconvenience for data scientists, developers, and anyone else heavily reliant on Jupyter Notebooks for their work. Imagine you've just spent hours tweaking your notebook, and then the tool you're using refuses to apply those changes! Frustrating, right?

Details

  • Type: Bug
  • Affected File Type: .ipynb (Jupyter Notebook files)
  • Working File Type: .py (Python files)
  • Extension Version: 0.32.1
  • VS Code Version: Code 1.105.0 (03c265b1adee71ac88f833e065f7bb956b60550a, 2025-10-08T14:09:35.891Z)
  • OS Version: Windows_NT x64 10.0.26100

Logs Snippet

Here's a snippet from the logs that might give us a clue:

Trace: choice {"delta":{"content":"0"}}
Trace: choice {"delta":{"content":"]."}}
Trace: choice {"delta":{"content":"trans"}}
Trace: choice {"delta":{"content":"Axes"}}
Trace: choice {"delta":{"content":","}}
Trace: choice {"delta":{"content":" fontsize"}}
Trace: choice {"delta":{"content":"="}}
Trace: choice {"delta":{"content":"10"}}
Trace: choice {"delta":{"content":",\n"}}
Trace: choice {"delta":{"content":"               "}}
Trace: choice {"delta":{"content":" vertical"}}
Trace: choice {"delta":{"content":"alignment"}}
Trace: choice {"delta":{"content":"'"}}
Trace: choice {"delta":{"content":"bottom"}}
Trace: choice {"delta":{"content":"',"}}
Trace: choice {"delta":{"content":" horizontal"}}
Trace: choice {"delta":{"content":"alignment"}}
Trace: choice {"delta":{"content":"'"}}
Trace: choice {"delta":{"content":"left"}}
Trace: choice {"delta":{"content":"',"}}
Trace: choice {"delta":{"content":" bbox"}}
Trace: choice {"delta":{"content":"="}}
Trace: choice {"delta":{"content":"props"}}
Trace: choice {"delta":{"content":")\n"}}
Trace: choice {"delta":{"content":"``"}}
Trace: choice {"delta":{"content":"`\n"}}
Trace: choice {"delta":{"content":"---"}}
Trace: choice {"delta":{"content":"COMP"}}
Trace: choice {"delta":{"content":"LETE"}}
Trace: choice {"finish_reason":"stop","delta":{"content":null}}
Info: message 0 returned. finish reason: [stop]
Debug: message 0 details: finishOffset: [undefined] completionId: [{chatcmpl-CR80L84oAxMrRc9MI9PjfrYyr5CK6}] created: [{1760581661}]
Info: request done: requestId: [8bdc299a-5fb8-46c5-9bc7-8eb0b88ee992] model deployment ID: []
Info: ccreq:79978330.copilotmd | success | gpt-4.1 | 9735ms | [codeMapper]

This log snippet suggests the extension is interacting with some form of code completion or suggestion mechanism (possibly related to Copilot), and it appears to be parsing or generating code related to plot axes and text properties. The "finish_reason":"stop" might indicate an abrupt termination during the apply process.

Possible Causes

  1. File Format Differences: .ipynb files are JSON-based and contain more metadata than .py files. The extension might not be correctly parsing or handling the JSON structure, leading to the failure.
  2. Extension Bug: There could be a specific bug in the extension (version 0.32.1) that affects how it interacts with .ipynb files. This bug might be related to file handling, parsing, or the application of code changes.
  3. Conflict with Other Extensions: It's possible that another installed extension is interfering with the way this extension handles .ipynb files. Conflicts between extensions can cause unexpected behavior.
  4. VS Code API Changes: Although less likely, changes in the VS Code API could have introduced compatibility issues with the extension, specifically affecting .ipynb files.
  5. Permissions Issues: In rare cases, file permission issues could prevent the extension from writing changes to .ipynb files.

How to Troubleshoot

Okay, so what can you do if you're facing this issue? Here’s a few things you can try to troubleshoot and potentially fix the problem.

1. Update or Reinstall the Extension

First, make sure you have the latest version of the extension. If you already have the latest version, try reinstalling it. Sometimes, a fresh installation can resolve underlying issues.

2. Check for Extension Conflicts

Disable other extensions one by one to see if any of them are conflicting with the extension in question. This can help you identify if another extension is causing the problem.

3. Review VS Code Settings

Check your VS Code settings for any configurations that might be affecting how the extension handles .ipynb files. Look for settings related to file associations, code formatting, or extension behavior.

4. Simplify the Notebook

Try applying the code changes to a simpler .ipynb file with minimal content. If it works on a simple file, the issue might be related to the complexity or structure of the original notebook.

5. Examine Logs

Take a closer look at the VS Code logs for any error messages or warnings that might provide more information about the failure. The logs can often point you in the right direction.

6. Downgrade VS Code or the Extension

If the issue started after updating VS Code or the extension, try downgrading to a previous version to see if that resolves the problem. This can help determine if the issue is related to a recent update.

Diving Deeper into the Logs

Let's take a closer look at the provided logs. The logs indicate that the extension is interacting with some form of code completion or suggestion mechanism. Here's what we can infer:

  • The extension is parsing or generating code related to plot axes and text properties, which suggests it might be involved in tasks like automatically formatting or suggesting code snippets for data visualization.
  • The "finish_reason":"stop" message might indicate an abrupt termination during the apply process. This could be due to an error, a timeout, or some other interruption.
  • The presence of codeMapper in the ccreq line suggests that the extension is using some form of code mapping or transformation during the apply process.

Additional Information

Here's some additional system information that might be relevant:

  • CPUs: AMD Ryzen 5 7600 6-Core Processor (12 x 3793)
  • GPU Status:
    • 2d_canvas: enabled
    • 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
    • trees_in_viz: disabled_off
    • video_decode: enabled
    • video_encode: enabled
    • vulkan: disabled_off
    • webgl: enabled
    • webgl2: enabled
    • webgpu: enabled
    • webnn: disabled_off
  • Memory (System): 127.07GB (99.01GB free)
  • Process Argv: --crash-reporter-id b91df5b8-0e2c-489d-877b-7318932fbb58
  • Screen Reader: no
  • VM: 0%

This information indicates that the system has sufficient resources and a capable GPU, so resource constraints are unlikely to be the cause of the issue.

A/B Experiments

The A/B experiments listed don't immediately point to a cause, but they indicate that the user is part of several experimental groups related to features like Copilot, documentation generation, and code completion. It's possible that one of these experiments is interacting negatively with the extension.

Conclusion

In conclusion, the 'apply code' function failing on .ipynb files while succeeding on .py files is a definite bug that needs addressing. By systematically troubleshooting and examining logs, you can hopefully identify the root cause and find a workaround. Keep an eye on updates to the VS Code extension, as the developers are likely working on a fix. Happy coding, folks!