unsupported:python session appears when creating venv on Window

[Santoshjnawali]

On Windows, creating a virtual environment causes an extra session named "unsupported: python()" to appear. I expect only the venv to be listed, but instead, there’s this additional unsupported session.

Steps: Create a venv in the working space → restart → open project → See unsupported: Python session showing error Python sqlite3 extension is required.

There's also an expected working session with the project, which works fine.

Expected: Only the working venv session should show.

[juliasilge]

Can you share more about how you are creating a venv? What command or UI you are using for that?

[Santoshjnawali]

I am using Python: Create Environment from the command palette. Tried both uv and venv with a fresh Python installation. When I try to delete that unsupported:python() session, it fails to delete.

[juliasilge]

Thanks for that info!

We are tracking the problem with deleting failed console sessions in #8303, but your original problem is new to me. We are aware that using pyenv on Linux requires sqlite but I have not seen or heard of errors of this nature on Windows before.

For further debugging, can you check if you observe the same problem when you use our new "Workspaces: New Folder from Template..." command? You'd choose Python, then either venv or uv, etc.

[juliasilge]

Can you also share how you installed Python to start with? What is the base Python that, for example, the venv is being made from?

[jonvanausdeln]

@Santoshjnawali Are you by chance running a remote session?

[jonvanausdeln]

I was just got the same thing! I'm not sure how. I'll try to track down some repro steps and file an issue.

[Santoshjnawali]

This is exactly the same error I am getting. I am not running a remote session. It seems to me there are some issues with the recent daily updates. Earlier today, I was not able to start Python at all with the same error (there was not even a working venv session), and I completely reinstalled Positron using the monthly releases from the website and turned off the daily updates, and it seems to be working for now.

[jonvanausdeln]

I opened Issue #9186 to track