Eglot with pylsp/pyright: can't get auto-completes to totally work
reddit / emacs

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frymye · 2022-10-25 16:29

Yesterday I was trying lsp-mode. After getting a bit annoyed with my
laptop's fan always getting activated, I decided to try eglot. So far
it feels much more lightweight.

I'm having trouble getting it to do some things though.

For context, I use pyvenv to manage my virtual environments:

`(use-package pyvenv:ensure t:config(pyvenv-mode 1)(pyvenv-activate
"~/miniconda3/envs/myenv/"))`

I have done both `conda install python-lsp-server[all] -c conda-forge`
and `conda install pyright` in this environment.

If I use pyright-langserver, then a lot of imports are "unknown".

If I use pylsp, then those imports seem to work, but I get some funny
autocompletion behaviour.

`import numpy as np`

`np.lin`

This says "no completion found". But

`from numpy import linalg`

`linalg.`

This works as expected, and I get reasonable suggestions for
completions.

​

Can someone tell me what's going on here and I to get this working? I
was hoping things would work right out of the box, but...

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JDRiverRun · 2022-10-25 22:29

Sounds like a venv issue, assuming you install your packages that way.
With pyright, look in your eglot events buffer and search for
:venvPath "something".

If nothing is there, you may need to configure eglot to send the
correct venv info.  I don't use pyvenv, but it's not hard to set with
eglot-workspace-configuration.  Something like (for whatever venv and
interpreter):

    (list (cons :python (list :venvPath venv-path :venv ".venv"
:pythonPath venv-interp)))

You could also set this in pyright's global or per-workspace configs.

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frymye · 2022-10-26 00:16

Thanks for the help. I don't see "venv" anywhere in eglot's event
buffer. I used conda to install my virtualenv. I do see

`(:message "Running language server:
/home/me/miniconda3/envs/myenv/bin/pyright-langserver --stdio")`

in the event buffer, which looks ok to me... I also tried added the
env path and name to pyrightconfig.json, but that doesn't seem to
help.

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Walheimat · 2022-10-26 19:22

Does completion work for other packages or is it only `numpy`?

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frymye · 2022-10-26 20:03

As far as I can tell, with pylsp completion is working for everything
except numpy. In fact, completion for \`np.linalg.\` is working. But
\`np.\` will show "No completion found".

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aminevsaziz · 2022-10-28 23:10

Can you elaborate a simple example on setting pyright global or per-
workspace config.
P.s: I'm very new emac and eglot!

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aminevsaziz · 2022-10-28 23:16

How did you manage to setup eglot with pyright  I always get "server
tried to register unsported capability
'workspace/didchangeworkspacefolder' and server exist.
BTW in the eglot-server-programs I set it to  (python-mode .
("pyright-langserver" "stdio"))

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JDRiverRun · 2022-10-29 01:25

Here's what I do.  This uses a custom package I've not yet released
called *simple-venv*, but you ought to be able to modify it for
whatever you use.

    (defun my/eglot-workspace-config (server)
        (if-let ((venv (simple-venv-find))
             ((not (eq venv 'none)))
             (vp (file-name-directory venv))
             (vn (file-name-nondirectory venv)))
        (list (cons :python
                    (list :venvPath vp :venv vn
                          :pythonPath (simple-venv-interpreter
venv))))))

    (setq-default eglot-workspace-configuration #'my/eglot-workspace-
config)

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aminevsaziz · 2022-10-29 02:05

BTW the eglot +pyright-langserver does not start and state that server
tried to register unspported capability
workspace/didchangeworkspacefolder

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JDRiverRun · 2022-10-29 02:38

I get that message too, but it is harmless AFAIK.