tree-sitter-python VS lsp-mode

i dont see the issue reported in the python parser: https://github.com/tree-sitter/tree-sitter-python/issues

How can we add different highlight for __dunder__ methods a.k.a. magic methods? Is there a TS highlight group for that? I know that in tree-sitter-python there is pythonTSConstructor for __init__ method that I can customize, but I couldn't figure out for other magic methods.

You could try elisp-tree-sitter as soon as this issue is closed.

I used Lua for years to configure my awesomewm desktop environment. Then, I started using it to configure my Wezterm. Since I bumped into an Emacs bug (lsp-mode bug to be fair), I switched quickly to Neovim after 20 years of Emacs, and I am using Lua to configure my Neovim. Last but not least, OpenResty gives my Nginx superpowers with Lua.

I also tried to the solutions suggested  and , but nothing worked. I moved the (setq lsp-keymap-...) line outside (and before) use-package. I also used :config (define-key lsp-load-map...) in my use-package block. But none of them worked.

Not sure how much this might help, but lsp-mode has lsp-yaml-select-buffer-schema and lsp-yaml-set-buffer-schema commands to pick schema from a list or set from a URI. Checking the source of them might give some hints about how the same could be implemented in eglot?

Beyond that you might as well embrace the suck and install autex with a language server: https://emacs-lsp.github.io/lsp-mode/

Smart completion these days is done primarily through LSP. eglot is fairly minimal but built-in as of 29, also available via GNU Elpa. lsp-mode is another option with more integrations and a bit more fleshed out.

lsp-mode: https://github.com/emacs-lsp/lsp-mode/issues/2080

Are you running emacs-29? It has numerous speed-ups compared to emacs-28 and older versions, many of them coded by Mattias Engdegård, e.g. commit def6fa4246. I have a fresh build of emacs-29 running on Linux and a new mac with an M1 CPU, and it's stupid fast. I don't use the native-comp feature. I rarely notice any hesitation or slowness. I don't use Elpy. I do use lsp mode.

Since you are doing code development, the first things to go for would be setting up your emacs packaging (installing use-package and melpa (use-package's documentation covers this) so you have more packages to choose from (do be careful to not just pick things willy nilly but research them a bit first)) and then setting up lsp-mode. lsp-mode lets you use LSP servers for the specific programming languages you work with in a somewhat unified fashion. You then need to install and setup the LSP servers for the languages you use, and possibly install language specific Emacs packages as support (note, Emacs has builtin functionality for many).