Dataframe columns autocomplete doesn't work in interactive window after extension update (jupytext mode)

[yopparai]

Issue Type: Bug

---

Code

# %%
import pandas as pd

# %%
df = pd.DataFrame(
    {
        "firstname": [1, 2, 3],
        "lastname": [1, 2, 3],
        'patronymic': [1, 2, 3]
    }
)

# %%
df

---

Extension version: 2021.8.1195043623
VS Code version: Code 1.59.0 (379476f0e13988d90fab105c5c19e7abc8b1dea8, 2021-08-04T23:13:20.182Z)
OS version: Linux x64 5.8.0-63-generic snap
Restricted Mode: No

System Info

Item	Value
CPUs	AMD Ryzen 5 4600H with Radeon Graphics (12 x 1722)
GPU Status	2d_canvas: unavailable_software gpu_compositing: disabled_software multiple_raster_threads: enabled_on oop_rasterization: disabled_off opengl: disabled_off rasterization: disabled_software skia_renderer: enabled_on video_decode: disabled_software vulkan: disabled_off webgl: unavailable_software webgl2: unavailable_software
Load (avg)	1, 1, 1
Memory (System)	15.08GB (0.50GB free)
Process Argv	--no-sandbox --force-user-env --unity-launch --crash-reporter-id 417bce1b-d3f2-43a2-bf1b-e2eb11a9b3f6
Screen Reader	no
VM	0%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11

A/B Experiments

vsliv368cf:30146710
vsreu685:30147344
python383cf:30185419
vspyt653:30270858
pythonvspyt602:30300191
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt639:30300192
pythontb:30283811
pythonvspyt551cf:30345471
pythonptprofiler:30281270
vshan820:30294714
vstes263cf:30335440
pythondataviewer:30285071
pythonvsuse255:30340121
vscod805:30301674
pythonvspyt200:30340761
vscextlang:30333561
binariesv615:30325510
vsccppwt:30329788
pythonvssor306:30344512
bridge0708:30335490
vstre464cf:30346473

[greazer]

Not 100% sure this is a regression. I'm assuming so at the moment.

[greazer]

In the meantime while we're investigating, you can rollback to the old implementation with this setting:

    "jupyter.enableNativeInteractiveWindow": false

[yopparai]

@greazer
Thanks for reply. Column autocomplete works fine in old implementation.

[janosh]

The df column autocomplete was powered by Jupyter in the old webview: #1561 (comment). Maybe gives some hint about where the regression might have happened.

[greazer]

Dupe of #7406