英文:

Pylance goes haywire in VS Code python notebooks

问题 {#heading}

有人知道是什么原因导致 VS Code 突然出现语法高亮错误，自动补全/智能感知停止工作吗？我尝试过重新安装 VS Code，切换到 VS Code 内部版本，禁用未使用的扩展。无论我做什么，打开 VS Code 几分钟后，语法高亮都会变得混乱，Pylance 智能感知就会消失。

例如：

我在语言服务器输出中唯一看到的异常情况是：

2023-08-10 09:35:08.006 [info] Error: Debug Failure. False expression: Chained file path undefined doesn't match cellFilePaths c:\Users\julian.irwin\OneDrive - Thermo Fisher Scientific\Projects\XXXX\python notebooks\xxxxxxxxx\lamp_noise_study.ipynb:pylance-notebook-cell:X15sZmlsZQ==.py
        at _0x2f5209 (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1017323)
        at c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1024550
        at _0x3100be.<computed> (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1024582)
        at _0x72f7ac._onDidChangeNotebookDocumentAsync (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1003431)

许多语言服务器输出中包含了包含敏感信息的路径名，因此我没有发布完整的输出。如果有助于调试，我可以将其清理并发布。

另一个神秘的事实是，在另一个选项卡中打开的 Python 文件 (.py) 可以正常工作。高亮和自动补全功能完全正常。只有在笔记本环境中才会出现问题。

可能与这个 Pylance 问题相关：

https://github.com/microsoft/pylance-release/issues/4685

建议的解决方案是降级到 Pylance v2023.7.40

版本：

• Windows 11
• VSCode 1.81.0
• VSCode 1.82.0-insider (也尝试过这个版本！)
• Python 3.11.1
• Ipykernel 6.19.4

VSCode 扩展：

• Jupyter v2023.7.1002162226
• Python v2023.14.0
• Pylance v2023.8.20

英文:

Does anyone know what could cause VS Code to suddenly have syntax highlighting go haywire, and autocompletion/intellisense stop working? I have tried reinstalling VS Code, switching to the VS Code insiders version, disabling unused extensions. No matter what I do a few minutes after opening VS code highlighting goes nuts and Pylance intellisense drops out.

For example:

The only unusual thing I see in the language server output is:

2023-08-10 09:35:08.006 [info] Error: Debug Failure. False expression: Chained file path undefined doesn't match cellFilePaths c:\Users\julian.irwin\OneDrive - Thermo Fisher Scientific\Projects\XXXX\python notebooks\xxxxxxxxx\lamp_noise_study.ipynb:pylance-notebook-cell:X15sZmlsZQ==.py
    at _0x2f5209 (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1017323)
    at c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1024550
    at _0x3100be.<computed> (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1024582)
    at _0x72f7ac._onDidChangeNotebookDocumentAsync (c:\Users\julian.irwin\.vscode-insiders\extensions\ms-python.vscode-pylance-2023.8.20\dist\server.bundle.js:1:1003431)

Much of the language server output has path names containing sensitive information so I didn't post the full output. I can scrub and then post them if it would help someone debug this.

Another mysterious fact is that a python file (.py) opened in a different tab works fine. Highlighting and autocompletion are fully function. It is only in the notebook environment that the problem occurs.

Possibly related to this Pylance issue:
https://github.com/microsoft/pylance-release/issues/4685

Suggested solution is to downgrade to Pylance v2023.7.40

Versions:

windows 11
vscode 1.81.0
vscode 1.82.0-insider (also tried with this one!)
python 3.11.1
ipykernel   6.19.4

VSCode Extensions

Jupyter v2023.7.1002162226
Python v2023.14.0
Pylance v2023.8.20

答案1 {#1}

得分: 0

我找到了解决方案。
在我的情况下，某些文件已损坏。找到显示错误的扩展文件夹的位置。

1. 卸载所有 Python 扩展
2. 关闭 VS Code
3. 删除该错误的扩展文件夹
4. 打开 VS Code 并安装建议的扩展

我注意到仅卸载扩展并不会删除文件夹，所以我猜想重新安装时它只是从相同的文件中加载。 英文:

I found the solution.
In my case, some file was corrupted. Find the location of the extension folder which is showing an error.

1. Uninstall all Python extensions
2. Close VS Code
3. Delete that error extension folder
4. Open VS Code and install the recommendations

I noted that only uninstalling extension did not delete the folder, so I am guessing that when reinstall, it just loads from the same files again.

答案2 {#2}

得分: 0

这个问题在这个 Pylance 问题中得到了解决：

https://github.com/microsoft/pylance-release/issues/4685

解决方法是将 Pyalnce 版本从 v2023.8.xx 降级到 v2023.7.40，可以使用 VS Code 扩展列表中的 "安装" 或 "卸载" 下拉菜单来进行操作。 英文:

The problem is addressed in this Pylance issue:

https://github.com/microsoft/pylance-release/issues/4685

The solution is to downgrade from Pyalnce v2023.8.xx to v2023.7.40, using the "Install" or "Uninstall" pulldown menu in the VS Code extension listing for Pylance.