Bug: Notebook Editor, Interactive Window, Python Editor does not work with diff

[harvastum]

Bug: Notebook Editor, Interactive Window, Editor cells

Steps to cause the bug to occur

1. Select two .ipynb files from explorer
2. Right click, select "Compare Selected" from context menu

Actual behavior

Two diff panels open up for a split second, then close.

Expected behavior

The diff panels show up and allow user to inspect files.

Your Jupyter and/or Python environment

Please provide as much info as you readily know

• Jupyter server running: N/A
• Extension version: 2020.5.80290
• VS Code version: 1.45.1
• Setting python.jediEnabled: true
• Setting python.languageServer: Jedi | Microsoft | None
• Python and/or Anaconda version: 3.6.1 (but it's irrelevant)
• OS: Windows 10
• Virtual environment: N/A

Developer Tools Console Output

None

[harvastum]

Looks very similar to this: https://github.com/microsoft/vscode-python/issues/7905#issue-505479525
but it's triggered differently.

[we-taper]

In my case, the automatically loaded Notebook Editor always mess up with diffs inside the Source Control panel. And setting "python.dataScience.useNotebookEditor": false works as a temporary solution.

[joyceerhl]

@harvastum Repro-ed. We'll triage this, thank you for the bug report!

Note also that we did not regress microsoft/vscode-python#7905—opening the diff panels from source control still works fine. We may be able to address this by returning early in onDidChangeActiveTextEditorHandler as was done in microsoft/vscode-python#8081

[greazer]

Thanks for your feedback. This issue will be addressed once VS Code adds native support for editing notebooks. Please see microsoft/vscode#91987. You can experiment by using VS Code insiders, which defaults to the new notebook experience.