Tab expansion working poorly in VS Code

[MarcSkovMadsen]

I'm on Panel 0.13.0. If I write from panel.pane import and press CTRL+Space or start typing Markdown I would expect VS Code to help me identify what is possible to import. It does not.

no-intellisense.mp4

This is just an example of a general problem that makes it harder than it has to be to use Panel.

[MarcSkovMadsen]

Its the same with other combinations pn.pane. and from panel import pane. I simply cannot get any help that Markdown is available under panel.pane.

[philippjfr]

What does VSCode use for completion here? Guess it's not dynamic.

[MarcSkovMadsen]

VS Code uses the Python Language Server and static type analysis (similar to mypy).

I can see if I

1. Move the from .layout import ... to the top of the root __init__.py file
2. Restart VS Code
   

the I start to be able to see some classes.

works.gif.mp4

[MarcSkovMadsen]

I've tried to set the Log Level for pylance to trace

and inspect the logs. But don't see any errors. See the pylance logs below.

log.txt

[MarcSkovMadsen]

It might have something todo with static analysis for panel not working at all as you can see below.

(this might also just be caused by me running mypy on an installed package?)

[MarcSkovMadsen]

But we are not alone microsoft/pylance-release#844.

But for example Streamlit just works.

[MarcSkovMadsen]

Similarly if I run

then mypy errors. I don't know for sure this is the cause. But might be.

[MarcSkovMadsen]

Pylance is built on top of pyright - not mypy. So maybe running pyright will reveal something?`

microsoft/pylance-release#193

[MarcSkovMadsen]

I tried creating a new project and virtual environment. Everything fresh. Same problem.

[MarcSkovMadsen]

But I can confirm the problematic import seems to be from . import param # noqa. Somehow this makes intellisense not work.

But if I remove it, it works. Also for pn.widgets and pn.pane.

remove-param.mp4

[MarcSkovMadsen]

Why do we need from . import param @philippjfr?

I don't think we need to import the module in the __init__.py files? See below example.

[maximlt]

I just tried in my dev env and it actually works for me. I'll try to confirm that later in a new env with a fresh panel version.

[philippjfr]

Definitely more to improve on the editor experience but this specific issue is resolved by #3411