I'm using Emacs 28.1 on macOS 11.6.6 (installed with brew) and want to setup a Python IDE with lsp-mode and lsp-pyright. My (not full) init.el looks like this (LSP and Python setups are at the bottom of the file):
;; Define and load custom.el file (setq custom-file (expand-file-name "custom.el" user-emacs-directory)) (when (file-exists-p custom-file) (load custom-file)) ;; Modify package repositories (require 'package) (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t) ;; Load and activate Emacs packages (package-initialize) ;; Install use-package if it's not installed (unless (package-installed-p 'use-package) (package-refresh-contents) (package-install 'use-package)) ;; Load use-package (require 'use-package) (setq use-package-hook-name-suffix nil) ;; Do not append text to the name of hooks mentioned by :hook ;; Load use-package-ensure ;; Support for :ensure and :pin keywords in use-package declarations (require 'use-package-ensure) (setq use-package-always-ensure t) ;; exec-path-from-shell (use-package exec-path-from-shell :ensure t :if (eq system-type 'darwin) :custom (exec-path-from-shell-variables '("PATH" "MANPATH" "XDG_CONFIG_HOME" "WORKON_HOME" "LSP_USE_PLISTS" "PYTHONPATH" "IPYTHONDIR" "MPLCONFIGDIR")) (exec-path-from-shell-arguments nil) :config ;; (setenv "PKG_CONFIG_PATH" "/usr/local/Cellar/zlib/1.2.11/lib/pkgconfig:/usr/local/lib/pkgconfig")) (exec-path-from-shell-initialize)) ;; Helm ;; Input completion (use-package helm :ensure t :init (helm-mode 1) (require 'helm-config) :bind ;; ("C-c i" . helm-imenu) ;; Select document heading ("C-x b" . helm-mini) ;; Select buffers ("C-x C-f" . helm-find-files) ;; Open or create files ("C-x C-r" . helm-recentf) ;; Select recently saved files ("M-x" . helm-M-x) ;; Evaluate functions ("M-y" . helm-show-kill-ring) ;; Show the kill ring (:map helm-map ("<tab>" . helm-execute-persistent-action) ("C-z" . helm-select-action))) ;; which-key ;; Input completion (use-package which-key :ensure t :custom (which-key-idle-delay 0.5) (which-key-idle-secondary-delay 0.5) :config (which-key-mode 1) (which-key-setup-side-window-bottom)) ;; Company ;; Text completion (use-package company :ensure t :custom (company-idle-delay 0.0) (company-minimum-prefix-length 4) (company-selection-wrap-around t) :hook ((text-mode-hook . company-mode) (prog-mode-hook . company-mode)) :bind (:map company-active-map ("<tab>" . nil) ("TAB" . nil) ("M-<tab>" . company-complete-common-or-cycle) ("M-<tab>" . company-complete-selection))) ;; Flyspell ;; Spell checking for text (requires aspell) (use-package flyspell :ensure t :init (setq ispell-program-name "aspell") :hook ((text-mode-hook . flyspell-mode) (prog-mode-hook . flyspell-prog-mode)) :bind ("<f7>" . flyspell-word) ("M-<f7>" . flyspell-buffer)) ;; Flycheck ;; Spell checking for code (use-package flycheck :ensure t :init (setq flycheck-highlighting-mode 'symbols flycheck-indication-mode 'left-fringe flycheck-standard-error-navigation t) :hook (prog-mode-hook . flycheck-mode)) ;; LSP Mode ;; Language Server Protocol Support (use-package lsp-mode :ensure t :hook (lsp-mode-hook . lsp-enable-which-key-integration) :bind ("s-l" . lsp-keymap-prefix) :commands lsp) (use-package lsp-ui :ensure t :after lsp-mode :hook (lsp-mode-hook . lsp-ui-mode) :bind (:map lsp-ui-mode-map ("C-c i" . lsp-ui-menu))) (use-package lsp-pyright :ensure t :after (python lsp-mode) :custom (lsp-pyright-venv-path (getenv "WORKON_HOME")) :hook (python-mode-hook . (lambda () (require 'lsp-pyright) (lsp)))) ;; Python (use-package python :ensure t :custom ;; (python-shell-completion-native-enable nil) (python-indent-guess-indent-offset-verbose nil) (python-shell-buffer-name "IPython") (python-shell-interpreter "ipython") (python-shell-interpreter-args "-i --simple-prompt") :hook ((python-mode-hook . flyspell-prog-mode) (python-mode-hook . flycheck-mode) (python-mode-hook . company-mode) (python-mode-hook . lsp))) ;; pyenv-mode ;; Integrate pyenv with python-mode (use-package pyenv-mode :ensure t :if (eq system-type 'darwin) :after python :hook (python-mode-hook . pyenv-mode)) ;; pyvenv ;; Python virtual environment support (use-package pyvenv :ensure t :after python :custom (pyvenv-workon "env") :hook ((python-mode-hook . pyvenv-mode) (pyvenv-post-activate-hooks . pyvenv-restart-python) (pyvenv-post-deactivate-hooks . pyvenv-restart-python)) :config (defalias 'workon 'pyvenv-workon) (defalias 'deactivate 'pyvenv-deactivate)) ;;; init.el ends here Basically, I use pyenv to manage different Python versions on my machine. I also manage virtual environments under WORKON_HOME, which is defined in my .profile file as ~/.python/venv. Generally, I use just a single venv called env for all my scripting purposes.
My goal is to use LSP for Python whenever I open a .py file.
According to this, lsp-mode and lsp-pyright are the only necessary parts to run LSP for Python in Emacs.
Now, in my current setup, whenever I run Emacs (from Applications) and open a .py file, I get this in my minibuffer:
Unable to find installed server supporting this file. The following servers could be installed automatically: The only possible choice I have is pyright (it seems that it doesn't find lsp-pyright). I choose it, press Enter and get the following message in *Messages* buffer:
LSP :: Download pyright started. LSP :: Server pyright install process failed with the following error message: Unable to find a way to install pyright. Check `*lsp-install*' and `*lsp-log*' buffer. The *lsp-log* looks like this:
Command "pyls" is not present on the path. Command "pylsp" is not present on the path. Unable to install pyright via `npm' because it is not present Why is it not finding my Perhaps I am missing something on Python's side (some packages, etc.)?lsp-pyright installation?
Sidenotes:
- I use
(setq use-package-hook-name-suffix nil)so all of my:hookdefinitions involve-hook(s)at the end. - As I understand,
pyls(also know as python-language-server) is deprecated.
UPDATE:
All I needed to do to solve this problem was to install the actual language server for Python. I did this by using brew, as pyright is available there:
brew install pyright 
