jupyterlab-lsp: Several inconsistencies found, trying to configure pylsp

This project’s main README describes installing an example server like so, using the Advanced Settings Editor:

{
  "language_servers": {
    "pyls": {
      "serverSettings": {
        "pyls.plugins.pydocstyle.enabled": true,
        "pyls.plugins.pyflakes.enabled": false,
        "pyls.plugins.flake8.enabled": true
      }
    },
    "r-languageserver": {
      "serverSettings": {
        "r.lsp.debug": false,
        "r.lsp.diagnostics": false
      }
    }
  }
}

But when trying to use the settings for Language Servers, since recently called “Language Servers (Experimental)”, it seems one first needs to create a new language server with the right server name and manually activate it with a switch:

and then opening the JSON Settings Editor, some of the JSON keywords seem to not match above given instructions:

i.e.:

• language_servers is now languageServers
• and pyls(p).serverSettings is now pyls(p).configuration

(indicating the recommended replacement of pyls with pylsp).

Note, that this is just an observation of inconsistencies, while I tried to find out how to get a python lsp server running, which I haven’t been able to do so far. Something has changed as I was able to do to so before, even wrote a medium post about it…

Another observation: Anytime I added a property using the GUI, the terminal log said:

2024-02-06 13:18:26,728 CET - WARNING - pylsp_jsonrpc.endpoint - Ignoring notification for unknown method $/setTrace