vim-tex-kawaii VS vim-vsnip

What these plugins do is just visually replacing a pattern with a unicode character using vim's conceal fucntion. By the way, check also my plugin for that : https://github.com/anufrievroman/vim-tex-kawaii So, basically, you can just copy the tex-conceal or my vim-tex-kawaii plugin and place it into your /after/ftplugin directory and rename to python.vim instead of tex.vim. That means this file will be loaded for python files. Then you need to replace all the patterns because in python I guess you don't use expressions like \alpha and you just write alpha. It is actually not obvious how equations in your python code should be different from rest of the code, maybe you could use some special variable names like _alpha or something like that.

Useful with LaTeX, when you don't want to see all the ugly syntax and chapters when you are trying to write beautiful prose :) Check screenshot of my plugin: https://github.com/anufrievroman/vim-tex-kawaii

My go to these days has been https://github.com/hrsh7th/vim-vsnip. It is compatible with LSP and VSCode snippet format. Since it is in pure VimScript you don’t need to battle configuring python just to get the plug-in to work.

I first started by reading some tutorials but most of those used parser combinators. For me, parser combinators always caused some issues sooner or later (at least in Lua when trying to parse recursive / nested nodes). An example project that uses this technique is vim-vsnip: https://github.com/hrsh7th/vim-vsnip/blob/master/autoload/vsnip/snippet/parser.vim. Later, I found out that Luacheck uses a different approach which I liked better: https://github.com/lunarmodules/luacheck/blob/master/src/luacheck/parser.lua. That's the project that helped me the most while writing my own parsers for different snippet engines.

This plugin could use it? hrsh7th/vim-vsnip

I am not a snippets expert, I don't even currently use snippets. However, I know that both LuaSnip and vim-vsnip can load these vscode style snippets. So my recommendation would be to get the snippets and use one of those two snippet plugins.

For autocompletion I use the nvim-cmp plugin. If you're not coding, it might be overkill. But during writing it helps me a lot, because it autosuggests words that I used in the current buffer, too. The most popular autocomplete plugins should be compatible with the most popular snippets engines like vim-vsnip.

Have you ever wondered how to have a snippet completion in VSCode so you can write Julia code fast but in Neovim? Fear not! vim-vsnip is the plugin you need. This plugin supports LSP/VSCode's snippet format. But first, you need to install cmp-vsnip for this plugin to be sourced to nvim-cmp. Oh btw, these three plugins: nvim-cmp, vim-vsnip, and cmp-vsnip → are made by the same person which is actually cool! If you want to support them, become a sponsor! (I am poor so I cannot sponsor yet 😔)

I believe you want the second variant. Then you should install some snippet plugin like vsnip or luasnip and config it with your completion engine.

https://github.com/hrsh7th/vim-vsnip says it supports vscode style snippets, so apparently you could use https://marketplace.visualstudio.com/items?itemName=kaffeine.advanced-drupal-8-snippets with that plugin.