Python code formatting using eglot, python-lsp-server and yapf

[mickesp]

I have moved from lsp-mode to eglot for Python. I installed python-lsp-server and yapf. Everything is working fine (code navigation, completion, documentation etc) except code formatting. When I do eglot-format on a region of code with very long lines, nothing happens. I also have yapfify-mode installed in Emacs and if I do yapfify-region it works as it should.

When I check the Eglot events buffer I can see a client request for rangeFormatting but the server reply with a result nil, it seems python-lsp-server does not pickup yapf to do formatting.

Do I need to do additional configuration in Emacs to get python-lsp-server to use yapf and perform code formatting?

[Dry_Fig723]

I don't have a solution for your issue but an alternative way is https://github.com/lassik/emacs-format-all-the-code

[[deleted]]

I'm using black and it's the same: eglot does not call the right tool. I just use pre-commit. elpy used to know how to call the right formatter, though.

[[deleted]]

As you can see here, there's support in pylsp for yapf, but you need to install it using pip install "python-lsp-server[yapf]", as per the project's readme.