Error in sqlmesh-lsp due to older pygls version

[roee88]

  File "\.venv\Scripts\sqlmesh_lsp.exe\__main__.py", line 5, in <module>
    from sqlmesh.lsp.main import main
  File "\.venv\Lib\site-packages\sqlmesh\lsp\main.py", line 11, in <module>
    from pygls.server import LanguageServer
  File "\.venv\Lib\site-packages\pygls\server.py", line 29, in <module>
    from lsprotocol.types import (
    ...<6 lines>...
    )
ImportError: cannot import name 'WorkspaceApplyEditResponse' from 'lsprotocol.types' (\.venv\Lib\site-packages\lsprotocol\types.py)

The dependencies of the lsp extra are not pinned to any specific version. A fresh install with uv grabs lsprotocol==2025.0.0 and pygls==1.0.2 and fails with the above. As a workaround I had to uv add --dev pygls -U to upgrade pygls to version 1.3.1. I'm not sure why pygls 1.0.2 is grabbed by default; the dependency tree shows that it comes only from sqlmesh (v0.196.3). Please consider adding a version specifier to pygls and lsprotocol.

[benfdking]

I'm having trouble recreating this. I have done the steps:

python -m venv .venv
source ./.venv/bin/activate
uv init
uv add 'sqlmesh[lsp]'

And for me it installs:

 + pygls==1.3.1
 + lsprotocol==2023.0.1

I am not sure why your uv defaults to that version. I have put in a constraint though to ensure it does the right thing.