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Interactive Window input box is not treated as a notebook cell #151994

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Description

Issue Type: Bug

When using the new notebook document features in LSP 3.17, the Interactive Window's input box is not considered to be a notebook cell. I think this is primarily because its URI scheme is vscode-interactive-input instead of vscode-notebook-cell. See the check here.

The current behavior creates a couple of problems for Pylance:

  1. Since Pylance doesn't know that the input box is related to the Interactive Window's actual notebook cells, its name scope is not chained together with theirs. This means that when typing in the input box, Pylance acts as if the user doesn't have access to symbols defined in those previously executed cells. IntelliSense doesn't provide those symbols as completions, semantic highlighting doesn't color those symbols properly, etc.
  2. Since Pylance doesn't know that the input box is at all related to notebooks, certain notebook-specific behaviors are not enabled (ex. allowing magic commands rather than flagging them as Python syntax errors).

@rchiodo, @dbaeumer, and I have been discussing this in a Pylance issue. This comment would be a good spot to start reading.

VS Code version: Code - Insiders 1.68.0-insider (4af164e, 2022-06-08T11:37:22.322Z)
OS version: Windows_NT x64 10.0.22538
Restricted Mode: No

System Info
Item Value
CPUs Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (8 x 3408)
GPU Status 2d_canvas: enabled
canvas_oop_rasterization: disabled_off
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
oop_rasterization: enabled
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_renderer: enabled_on
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
Load (avg) undefined
Memory (System) 31.92GB (7.87GB free)
Process Argv --crash-reporter-id c031ffde-fde4-40dc-8a32-5922dc21e570
Screen Reader no
VM 0%
Extensions (10)
Extension Author (truncated) Version
vscode-eslint dba 2.2.2
EditorConfig Edi 0.16.4
prettier-vscode esb 9.5.0
csharp ms- 1.25.0
python ms- 2022.9.11611009
vscode-pylance ms- 9999.0.0-dev
jupyter ms- 2022.6.1001631011
jupyter-keymap ms- 1.0.0
jupyter-renderers ms- 1.0.8
vscode-typescript-tslint-plugin ms- 1.3.4
A/B Experiments
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python383:30185418
vspor879:30202332
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pythonvs932:30404738
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vscscmwlcmt:30465136
cppdebug:30492333
pylanb8912:30496796
vsclangdf:30492506

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