basedpyright / ruff not detecting installed libraries in conda

[IanQS]

Hi all!

Edit: This is on MacOS with Helix 25.01 as well as basedpyright and ruff installed in the rc conda environment. Surprisingly, method 1 works just fine on my linux machine

I was wondering if I could get some help. Say I have a conda environment, rc, where I've got numpy installed. My helix installation doesn't seem to detect it. I've tried two things, which I've listed below (one was a solution I found searching through the discussions here on github).

To avoid repetition, I'm copy-pasting my main languages.toml and a quick script:

Common Code

languages.toml

#########################################
# LANGUAGE: PYTHON
#########################################
[[language]]
name = "python"
language-id = "python"
auto-format = true
language-servers = ["basedpyright", "ruff"]
formatter = { command = "ruff", args = ["format", "-"] }
file-types = ["py", "ipynb"]
comment-token = "#"
shebangs = ["python"]
roots = ["pyproject.toml", "setup.py", "poetry.lock", ".git", ".jj", ".venv/"]

tester.py

import numpy as np
print(np.eye(2, dtype=int))

Steps

1. conda activate rc
2. hx tester.py

Scenario 1: Standard

[language-server.basedpyright]
command = "basedpyright-langserver" <------------------------- line that will change in the second scenario
args = ["--stdio"]
config.reportMissingtypeStubs = false
except-features = ["format", "code-action"]

In this case, my LSP is reporting

Import "numpy" could not be resolved
(reportMissingImports)

Scenario 2: Solution from discussion

I found Python Virtualenvs, in which someone proposed a fix, but it hasn't addressed my issue. Anyways. the change I made to my languages.toml:

[language-server.basedpyright]
command = "basedpyright-ls-helix"   <------------------------- changed line
config.reportMissingtypeStubs = false
except-features = ["format", "code-action"]

I then added a script (where my other configs live) .config/helix/│basedpyright-ls-helix.sh, which has the contents:

#!/usr/bin/bash

if [[ $VIRTUAL_ENV ]]; then
  python_path="${VIRTUAL_ENV}/bin/python"
elif [[ $CONDA_PREFIX ]] ; then
  python_path="${CONDA_PREFIX}/bin/python"
else
  python_path="python"
fi

export PYTHONPATH=python_path
basedpyright-langserver --stdio

In this case, I do not see the error of

Import "numpy" could not be resolved
(reportMissingImports)

however, there is no autocompletion....

Logs:

I'm hoping the logs are helpful?

2025-01-06T18:53:39.840 helix_lsp::transport [ERROR] ruff err <- "warning: `incorrect-blank-line-before-class` (D203) and `no-blank-line-before-class` (D211) are incompatible. Ignoring `incorrect-blank-line-before-class`.\n"
2025-01-06T18:53:39.840 helix_lsp::transport [ERROR] ruff err <- "warning: `multi-line-summary-first-line` (D212) and `multi-line-summary-second-line` (D213) are incompatible. Ignoring `multi-line-summary-second-line`.\n"
2025-01-06T18:55:05.958 helix_lsp::transport [ERROR] ruff err <- "warning: `incorrect-blank-line-before-class` (D203) and `no-blank-line-before-class` (D211) are incompatible. Ignoring `incorrect-blank-line-before-class`.\n"
2025-01-06T18:55:05.958 helix_lsp::transport [ERROR] ruff err <- "warning: `multi-line-summary-first-line` (D212) and `multi-line-summary-second-line` (D213) are incompatible. Ignoring `multi-line-summary-second-line`.\n"
2025-01-06T19:04:09.611 helix_lsp::transport [ERROR] ruff err <- "warning: `incorrect-blank-line-before-class` (D203) and `no-blank-line-before-class` (D211) are incompatible. Ignoring `incorrect-blank-line-before-class`.\n"
2025-01-06T19:04:09.612 helix_lsp::transport [ERROR] ruff err <- "warning: `multi-line-summary-first-line` (D212) and `multi-line-summary-second-line` (D213) are incompatible. Ignoring `multi-line-summary-second-line`.\n"
2025-01-06T19:13:50.002 helix_lsp::transport [ERROR] err: <- Other(failed to send a message to server

Caused by:
    channel closed)
2025-01-06T19:13:50.003 helix_lsp::transport [ERROR] ruff err: <- StreamClosed

[IanQS]

FIXED! Looks like MacOS mangles the paths or something when you use tmux..... Anyways, see Fix tmux messing with conda. The following is copy-pasted from the gist from @ekreutz

If using bash, edit /etc/profile and add one line. (For zsh, edit /etc/zprofile)

if [ -x /usr/libexec/path_helper ]; then
        PATH="" # <- ADD THIS LINE (right before path_helper call)
        eval `/usr/libexec/path_helper -s`
fi