jedi VS python-language-server

I don't use jedi at all, but from a quick glance at the README of the package you've installed, the code you've posted in your post installs the wrong repo; it seems davidhalter/jedi is just jedi's backend. To make it work with vim, install one of the plugins suggested in the README instead (it seems that davidhalter/jedi-vim) is the one you're looking for.

Jedi: https://github.com/davidhalter/jedi

Or better, use refactoring tool like rope, jedi, or whatever you have in your IDE to rename them.

Get jedi working in Kate · Issue #1539 · davidhalter/jedi

For text completion, Jedi. For automated refactoring, I highly recommend rope. Some of the previously mentioned plugins provides Vim integrations with these excellent tools.

Take a look at some LSP servers that use Jedi https://github.com/davidhalter/jedi

I've been playing with some ideas for creating a SQLite database of classes, functions and suchlike found in Python code, so I can analyze my codebases with SQL queries.

I've had some good initial results with https://github.com/davidhalter/jedi - which is the Python introspection library that powers various editor autocomplete implementations. I have a prototype which uses that to create a SQL database of functions, classes and places that they are used.

I've also been playing with https://github.com/github/semantic - it can parse Python, JavaScript and other languages and offers a --json-symbols option which dumps out a JSON object showing the symbols (functions, variables etc) found in the code.

Palantir's Python Language Server.

Some more details in issue #935.

As I understand, pyls (also know as python-language-server) is deprecated.

Python: pyls required. (pip install python-language-server)

PS. There's Python language server: https://github.com/palantir/python-language-server . I've not used it specifically, but I believe there is a way to request from it a list of unused variables / functions, so, maybe try that?

In my opinion, that time would be better spent contributing to existing open-source alternatives to extensions like Pylance (in order to make them as feature-complete), since they work with FOSS distributions of VSCode. Examples include palantir/python-language-server and python-lsp/python-lsp-server, both of which are compatible with VSCode through LSP, it's just that they're not as feature-complete as Pylance.

Kate (and a lot of other editors) now uses the Language Server Protocol for doing autocomplete. https://github.com/palantir/python-language-server is a Language Server which uses Jedi. Install that and enable the "LSP Client" plugin in Kate.

If you want interactive completion, install lsp-mode from the packages screen (M-x package-list-packages), and install a language server for each of the languages that you're interested in. For C and C++, I use ccls. For Python, I use python-language-server.

From doing a quick search I found https://github.com/palantir/python-language-server/issues/390, maybe it helps.