pygls logging level INFO in terminal that launches JupyterLab with jedi-language-server and jupyterlab-lsp

[selasley]

The terminal window that starts JupyterLab is flooded with INFO.pygls messages. Michał Krassowski from jupyterlab-lsp thinks this may be an issue with the jedi language server. See

Log level for jupyterlab-lsp <-> pygls setting? #715

python 3.10.1 running under macOS 11.6.2 relevant packages installed:

ipython                   7.30.1
ipython-genutils          0.2.0
jedi                      0.18.1
jedi-language-server      0.34.12
jupyter-client            7.1.0
jupyter-core              4.9.1
jupyter-lsp               1.5.1
jupyter-server            1.13.1
jupyterlab                3.2.5
jupyterlab-code-formatter 1.4.10
jupyterlab-lsp            3.9.2
jupyterlab-pygments       0.1.2
jupyterlab-server         2.9.0
pygls                     0.11.3
python-lsp-jsonrpc        1.0.0
python-lsp-server         1.3.3

Thanks for any help you can provide

[krassowski]

Yup, it looks like pygls logs every step with INFO and the default logging level in jedi-language-server is INFO:

https://github.com/pappasam/jedi-language-server/blob/13297ba1cc109c5f8c2e3b72a82ea79cc9711473/jedi_language_server/cli.py#L105-L118

Should we switch to WARNING by default and allow to bump to either INFO or DEBUG with verbose? Or maybe we need to add --quiet flag? In any case it would be useful if verbosity level could be further tuned beyond info/debug (because of how much pygls is spamming on the info level).

[asteppke]

Thanks for looking into this. I can confirm with the log level set to WARN in cli.py no flood of messages appear in the Jupyter terminal window anymore.