No autocompletion for single-file mode starting from Pyright version 1.1.378

[anthony-S93]

Describe the bug
Autocomplete no longer works with single-file mode starting from pyright version 1.1.378

Steps to reproduce

1. Create an empty python file test.py
2. Open the file with text editor.
3. Start pyright in single file mode.
4. Write any python code.
5. Observe the lack of autocomplete.

I've included full LSP debug logs for single-file mode and normal mode:

1. single-file-mode.log
2. normal-mode.log

Both of these logs are generated after launching pyright in two different modes on an empty python file test.py. In both instances, pyright was launched by the Neovim LSP Client.

NVIM v0.10.1
Build type: Release
LuaJIT 2.1.1723675123

Downgrading pyright to version 1.1.377 fixes the issue.

[erictraut]

The auto-completion functionality in pyright is generally owned and maintained by the pylance team.

Could someone from the pylance team please transfer this issue and investigate & triage as you see fit? Thanks!

[rchiodo]

Hover doesn't work either for a single file.

[rchiodo]

Problem doesn't repro in Pylance though.

[heejaechang]

let me take a look

[rchiodo]

It looks like the default workspace is recreated for some reason. So it loses the sourceFileInfo in the original default workspace and subsequent requests don't find any source files.

[rchiodo]

It's a difference in _getDefaultWorkspaceKey and _getWorkspaceKey in the WorkspaceFactory. It doesn't return the same value for both. Probably from the python path removal stuff.

[heejaechang]

are you fixing it?

[heejaechang]

I am sending PR to pyright directly.

[rchiodo]

I could, I was in the middle of debugging it to make sure it wasn't affecting Pylance. But if you have a PR ready, feel free to submit.