Import "numpy" could not be resolved about lsp-pyright HOT 2 CLOSED

To Reproduce

Have pyright 1.1.126 and Python 3.8 installed. Open a Python buffer and attempt to import numpy or matplotlib (previously installed with pip3). See the red underline that reports those imports cannot be resolved.

Example

from lsp-pyright.

Solved

From the issue I opened at pyright's repo, the maintainer replied that pyright executes "python3" and runs a small script in the selected Python interpreter to dump the paths the sys.path, and it turns out the command "python3" was exactly the problem! "lsp-pyright" defaults the command to "python", which points to python2 on my system. So after adding the following configuration in my Emacs' setting file init.el, the problem went away:

(setq lsp-pyright-python-executable-cmd "python3")

For fellow Emacs users seeking the answer, the following snippet is the complete solution to have Pyright working in Emacs:

(use-package python
  :config
  (setq python-shell-interpreter "python3"))

(use-package lsp-pyright
  :hook (python-mode . (lambda () (require 'lsp-pyright)))
  :init (when (executable-find "python3")
          (setq lsp-pyright-python-executable-cmd "python3")))

from lsp-pyright.