pyright-langserver

Description

I’m trying to configure pyright as a Python language server, but haven’t had much success.

Reproduce

So far I have managed to get the jupyterlab-lsp installed (after struggling with some Internal Server 500 errors):

% jupyter labextension list             
JupyterLab v3.0.7
Other labextensions (built into JupyterLab)
   app dir: /home/jdsmith/.local/share/jupyter/lab
        @krassowski/completion-theme v2.0.0 enabled OK
        @krassowski/jupyterlab-lsp v3.4.1 enabled OK

Uninstalled core extensions:
    @krassowski/jupyterlab-lsp

But I don’t get any additional completion/underlining/etc. features.

Expected behavior

I hoped to see underlines and signatures/etc. provided by pyright.

Context

• Language Server: pyright-langserver
• Language Server version: 1.1.113
• Language Server installed with: npm
• Language Server Spec

I have also added the following file as pyright.json to /etc/jupyter/jupyter_notebook_config.d

{
  "pyright-langserver": {            # the name of the implementation
      "version": 1,                      # the version of the spec schema
      "argv": ["pyright-langserver", "--stdio"],  # a list of command line arguments
      "languages": ["python"]            # a list of languages it supports
  }
}

I’m not certain if this is the right location to implement a new server spec. In fact I found the docs lacking there: lots of descriptions of what might go in such a spec file to configure a new LSP server, but no mention I could find of where to put it!

Before I dump a bunch of files on you, I want to see how I might learn whether juptyerlab_lsp is in fact running, and if it has found (and rejected?) the langserver spec. I looked for [lsp] output in a --debug run of jupyter lab, but did not see any mentions.

[yuntan]

I found that setting python.analysis.useLibraryCodeForTypes to true works for popups.

default	useLibraryCodeForTypes: true

Open “Advanced Settings Editor” > “Language Server” and edit “User Preferences”.

{
    "language_servers": {
        "pyright": {
            "serverSettings": {
                "python.analysis.useLibraryCodeForTypes": true
            }
        }
    }
}

Then restart Jupyter.

Note Starting with numpy 1.20 type stubs are included in numpy. Pyright uses type stubs for completion and popups. useLibraryCodeForTypes: true is effective for packages without type stubs (like pandas).

[krassowski]

Closing as pyright auto-detection was added in #587 and will be available in the next version 😃