emacs-lsp-booster doesn't work well with emacs-pet/pyvenv regarding python virtual environment

[ramsayleung]

Hi, Thanks so much for this awsome project, it works well with all language servers along with eglot, except for python project with virtual environment in my case.

I used to manage my virual environment with https://github.com/jorgenschaefer/pyvenv, then switch to pet later.

But I've been struggled with eglot-booster-mode for a while, after I enable eglot-booster-mode with pet, eglot fails to recognize all dependencies installed in the virtual environment.

How to reproduce

1. Be sure that pyright-language-server is installed and in your PATH
2. Create a virtual environment and activate it, and install a package.

python3 -m venv .venv
source .venv/bin/activate
pip install python-dotenv

3. Create a poc python file:

from dotenv import load_dotenv
load_dotenv()  # take environment variables

4. Launch Emacs with following minimal init.el

;; Initialize package sources
(require 'package)

(setq package-archives '(("gnu" . "https://elpa.gnu.org/packages/")
                         ("nongnu" . "https://elpa.nongnu.org/nongnu/")
                         ("melpa" . "https://melpa.org/packages/")))

(package-initialize)
(unless package-archive-contents
  (package-refresh-contents))

(require 'use-package)

(use-package eglot
  :ensure t
  :config
  (add-hook 'python-base-mode-hook 'eglot-ensure))

(use-package pet
  :ensure t
  :config
  (add-hook 'python-base-mode-hook 'pet-mode -10))
(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages '(eglot-booster))
 '(package-vc-selected-packages
   '((eglot-booster :vc-backend Git :url "https://github.com/jdtsmith/eglot-booster"))))

5. Open the poc.py with (eglot-booster-mode) enabled, flymake couldn't resolve the dotenv package
   

6. Reopen the poc.py with (eglot-booster-mode) disabled, restart eglot or restart emacs, flymake manages to resolve the dotenv

Logs

1. Eglot event buffer with eglot-booster-mode enabled:

[internal] Sat Jan  4 22:41:19 2025:
(:message "Running language server: emacs-lsp-booster --json-false-value :json-false -- /opt/homebrew/bin/pyright-langserver --stdio")
[client-request] (id:1) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 1 :method "initialize" :params
	  (:processId 94745 :rootPath "/tmp/reproduce-bug/" :rootUri "file:///private/tmp/reproduce-bug" :initializationOptions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
																	      ())
		      :capabilities
		      (:workspace
		       (:applyEdit t :executeCommand
				   (:dynamicRegistration :json-false)
				   :workspaceEdit
				   (:documentChanges t)
				   :didChangeWatchedFiles
				   (:dynamicRegistration t)
				   :symbol
				   (:dynamicRegistration :json-false)
				   :configuration t :workspaceFolders t)
		       :textDocument
		       (:synchronization
			(:dynamicRegistration :json-false :willSave t :willSaveWaitUntil t :didSave t)
			:completion
			(:dynamicRegistration :json-false :completionItem
					      (:snippetSupport :json-false :deprecatedSupport t :resolveSupport
							       (:properties
								["documentation" "details" "additionalTextEdits"])
							       :tagSupport
							       (:valueSet
								[1]))
					      :contextSupport t)
			:hover
			(:dynamicRegistration :json-false :contentFormat
					      ["plaintext"])
			:signatureHelp
			(:dynamicRegistration :json-false :signatureInformation
					      (:parameterInformation
					       (:labelOffsetSupport t)
					       :activeParameterSupport t))
			:references
			(:dynamicRegistration :json-false)
			:definition
			(:dynamicRegistration :json-false :linkSupport t)
			:declaration
			(:dynamicRegistration :json-false :linkSupport t)
			:implementation
			(:dynamicRegistration :json-false :linkSupport t)
			:typeDefinition
			(:dynamicRegistration :json-false :linkSupport t)
			:documentSymbol
			(:dynamicRegistration :json-false :hierarchicalDocumentSymbolSupport t :symbolKind
					      (:valueSet
					       [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26]))
			:documentHighlight
			(:dynamicRegistration :json-false)
			:codeAction
			(:dynamicRegistration :json-false :codeActionLiteralSupport
					      (:codeActionKind
					       (:valueSet
						["quickfix" "refactor" "refactor.extract" "refactor.inline" "refactor.rewrite" "source" "source.organizeImports"]))
					      :isPreferredSupport t)
			:formatting
			(:dynamicRegistration :json-false)
			:rangeFormatting
			(:dynamicRegistration :json-false)
			:rename
			(:dynamicRegistration :json-false)
			:inlayHint
			(:dynamicRegistration :json-false)
			:publishDiagnostics
			(:relatedInformation :json-false :codeDescriptionSupport :json-false :tagSupport
					     (:valueSet
					      [1 2])))
		       :window
		       (:workDoneProgress t)
		       :general
		       (:positionEncodings
			["utf-32" "utf-8" "utf-16"])
		       :experimental #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
						   ()))
		      :workspaceFolders
		      [(:uri "file:///private/tmp/reproduce-bug" :name "/tmp/reproduce-bug/")]))
[stderr] [2025-01-05T06:41:19Z INFO  emacs_lsp_booster::app] Running server "/opt/homebrew/bin/pyright-langserver" "--stdio"
[stderr] [2025-01-05T06:41:19Z INFO  emacs_lsp_booster::app] Will convert server json to bytecode! bytecode options: BytecodeOptions { object_type: Plist, null_value: Nil, false_value: Keyword("json-false") }
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Pyright language server 1.1.391 starting" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Server root directory: file:///opt/homebrew/Cellar/pyright/1.1.391/libexec/lib/node_modules/pyright/dist" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Starting service instance \"/tmp/reproduce-bug/\"" :type 3))
[server-reply] (id:1) Sat Jan  4 22:41:19 2025:
(:id 1 :jsonrpc "2.0" :result
     (:capabilities
      (:callHierarchyProvider t :codeActionProvider
			      (:codeActionKinds
			       ["quickfix" "source.organizeImports"]
			       :workDoneProgress t)
			      :completionProvider
			      (:completionItem
			       (:labelDetailsSupport t)
			       :resolveProvider t :triggerCharacters
			       ["." "[" "\"" "'"]
			       :workDoneProgress t)
			      :declarationProvider
			      (:workDoneProgress t)
			      :definitionProvider
			      (:workDoneProgress t)
			      :documentHighlightProvider
			      (:workDoneProgress t)
			      :documentSymbolProvider
			      (:workDoneProgress t)
			      :executeCommandProvider
			      (:commands
			       []
			       :workDoneProgress t)
			      :hoverProvider
			      (:workDoneProgress t)
			      :referencesProvider
			      (:workDoneProgress t)
			      :renameProvider
			      (:prepareProvider t :workDoneProgress t)
			      :signatureHelpProvider
			      (:triggerCharacters
			       ["(" "," ")"]
			       :workDoneProgress t)
			      :textDocumentSync 2 :typeDefinitionProvider
			      (:workDoneProgress t)
			      :workspace
			      (:workspaceFolders
			       (:changeNotifications t :supported t))
			      :workspaceSymbolProvider
			      (:workDoneProgress t))))
[client-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "initialized" :params #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
							    ()))
[client-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "textDocument/didOpen" :params
	  (:textDocument
	   (:uri "file:///private/tmp/reproduce-bug/poc.py" :version 0 :languageId "python" :text "from dotenv import load_dotenv\n\nload_dotenv()  # take environment variables\n")))
[client-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "workspace/didChangeConfiguration" :params
	  (:settings #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
				   ())))
[server-request] (id:0) Sat Jan  4 22:41:19 2025:
(:id 0 :jsonrpc "2.0" :method "client/registerCapability" :params
     (:registrations
      [(:id "d6fe5999-2c7e-4418-ad06-697614bbe76c" :method "workspace/didChangeWatchedFiles" :registerOptions
	    (:watchers
	     [(:globPattern "**/pyrightconfig.json" :kind 7)
	      (:globPattern "**" :kind 7)]))]))
[client-reply] (id:0) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 0 :result nil)
[server-request] (id:1) Sat Jan  4 22:41:19 2025:
(:id 1 :jsonrpc "2.0" :method "workspace/configuration" :params
     (:items
      [(:scopeUri "file:///private/tmp/reproduce-bug" :section "python")]))
[client-reply] (id:1) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 1 :result
	  [nil])
[server-request] (id:2) Sat Jan  4 22:41:19 2025:
(:id 2 :jsonrpc "2.0" :method "workspace/configuration" :params
     (:items
      [(:scopeUri "file:///private/tmp/reproduce-bug" :section "python.analysis")]))
[client-reply] (id:2) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 2 :result
	  [nil])
[server-request] (id:3) Sat Jan  4 22:41:19 2025:
(:id 3 :jsonrpc "2.0" :method "workspace/configuration" :params
     (:items
      [(:scopeUri "file:///private/tmp/reproduce-bug" :section "pyright")]))
[client-reply] (id:3) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 3 :result
	  [nil])
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "No include entries specified; assuming /private/tmp/reproduce-bug" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Auto-excluding **/node_modules" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Auto-excluding **/__pycache__" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Auto-excluding **/.*" :type 3))
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:message "Found 2 source files" :type 3))
[server-request] (id:4) Sat Jan  4 22:41:19 2025:
(:id 4 :jsonrpc "2.0" :method "client/registerCapability" :params
     (:registrations
      [(:id "5c6294c5-1e99-4060-906e-0d66e647288c" :method "workspace/didChangeWatchedFiles" :registerOptions
	    (:watchers
	     [(:globPattern "**/pyrightconfig.json" :kind 7)
	      (:globPattern "**" :kind 7)]))]))
[client-reply] (id:4) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 4 :result nil)
[server-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "textDocument/publishDiagnostics" :params
	  (:diagnostics
	   [(:code "reportMissingImports" :codeDescription
		   (:href "https://github.com/microsoft/pyright/blob/main/docs/configuration.md#reportMissingImports")
		   :message "Import \"dotenv\" could not be resolved" :range
		   (:end
		    (:character 11 :line 0)
		    :start
		    (:character 5 :line 0))
		   :severity 1 :source "Pyright")]
	   :uri "file:///private/tmp/reproduce-bug/poc.py" :version 0))
[server-request] (id:5) Sat Jan  4 22:41:19 2025:
(:id 5 :jsonrpc "2.0" :method "client/unregisterCapability" :params
     (:unregisterations
      [(:id "d6fe5999-2c7e-4418-ad06-697614bbe76c" :method "workspace/didChangeWatchedFiles")]))
[client-reply] (id:5) Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :id 5 :result nil)
[client-request] (id:2) Sat Jan  4 22:41:35 2025:
(:jsonrpc "2.0" :id 2 :method "textDocument/signatureHelp" :params
	  (:textDocument
	   (:uri "file:///private/tmp/reproduce-bug/poc.py")
	   :position
	   (:line 0 :character 5)))
[client-request] (id:3) Sat Jan  4 22:41:35 2025:
(:jsonrpc "2.0" :id 3 :method "textDocument/hover" :params
	  (:textDocument
	   (:uri "file:///private/tmp/reproduce-bug/poc.py")
	   :position
	   (:line 0 :character 5)))
[client-request] (id:4) Sat Jan  4 22:41:35 2025:
(:jsonrpc "2.0" :id 4 :method "textDocument/documentHighlight" :params
	  (:textDocument
	   (:uri "file:///private/tmp/reproduce-bug/poc.py")
	   :position
	   (:line 0 :character 5)))
[server-reply] (id:2) Sat Jan  4 22:41:35 2025:
(:id 2 :jsonrpc "2.0" :result nil)
[server-reply] (id:3) Sat Jan  4 22:41:35 2025:
(:id 3 :jsonrpc "2.0" :result nil)
[server-reply] (id:4) Sat Jan  4 22:41:35 2025:
(:id 4 :jsonrpc "2.0" :result
     [(:kind 2 :range
	     (:end
	      (:character 11 :line 0)
	      :start
	      (:character 5 :line 0)))])

2. Eglot event buffer with eglot-booster-mode disabled:

[internal] Sat Jan  4 22:43:04 2025:
(:message "Running language server: /opt/homebrew/bin/pyright-langserver --stdio")
[client-request] (id:1) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 1 :method "initialize" :params
	  (:processId 94745 :rootPath "/tmp/reproduce-bug/" :rootUri "file:///private/tmp/reproduce-bug" :initializationOptions #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
																	      ())
		      :capabilities
		      (:workspace
		       (:applyEdit t :executeCommand
				   (:dynamicRegistration :json-false)
				   :workspaceEdit
				   (:documentChanges t)
				   :didChangeWatchedFiles
				   (:dynamicRegistration t)
				   :symbol
				   (:dynamicRegistration :json-false)
				   :configuration t :workspaceFolders t)
		       :textDocument
		       (:synchronization
			(:dynamicRegistration :json-false :willSave t :willSaveWaitUntil t :didSave t)
			:completion
			(:dynamicRegistration :json-false :completionItem
					      (:snippetSupport :json-false :deprecatedSupport t :resolveSupport
							       (:properties
								["documentation" "details" "additionalTextEdits"])
							       :tagSupport
							       (:valueSet
								[1]))
					      :contextSupport t)
			:hover
			(:dynamicRegistration :json-false :contentFormat
					      ["plaintext"])
			:signatureHelp
			(:dynamicRegistration :json-false :signatureInformation
					      (:parameterInformation
					       (:labelOffsetSupport t)
					       :activeParameterSupport t))
			:references
			(:dynamicRegistration :json-false)
			:definition
			(:dynamicRegistration :json-false :linkSupport t)
			:declaration
			(:dynamicRegistration :json-false :linkSupport t)
			:implementation
			(:dynamicRegistration :json-false :linkSupport t)
			:typeDefinition
			(:dynamicRegistration :json-false :linkSupport t)
			:documentSymbol
			(:dynamicRegistration :json-false :hierarchicalDocumentSymbolSupport t :symbolKind
					      (:valueSet
					       [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26]))
			:documentHighlight
			(:dynamicRegistration :json-false)
			:codeAction
			(:dynamicRegistration :json-false :codeActionLiteralSupport
					      (:codeActionKind
					       (:valueSet
						["quickfix" "refactor" "refactor.extract" "refactor.inline" "refactor.rewrite" "source" "source.organizeImports"]))
					      :isPreferredSupport t)
			:formatting
			(:dynamicRegistration :json-false)
			:rangeFormatting
			(:dynamicRegistration :json-false)
			:rename
			(:dynamicRegistration :json-false)
			:inlayHint
			(:dynamicRegistration :json-false)
			:publishDiagnostics
			(:relatedInformation :json-false :codeDescriptionSupport :json-false :tagSupport
					     (:valueSet
					      [1 2])))
		       :window
		       (:workDoneProgress t)
		       :general
		       (:positionEncodings
			["utf-32" "utf-8" "utf-16"])
		       :experimental #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
						   ()))
		      :workspaceFolders
		      [(:uri "file:///private/tmp/reproduce-bug" :name "/tmp/reproduce-bug/")]))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Pyright language server 1.1.391 starting"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Server root directory: file:///opt/homebrew/Cellar/pyright/1.1.391/libexec/lib/node_modules/pyright/dist"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Starting service instance \"/tmp/reproduce-bug/\""))
[server-reply] (id:1) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 1 :result
	  (:capabilities
	   (:textDocumentSync 2 :definitionProvider
			      (:workDoneProgress t)
			      :declarationProvider
			      (:workDoneProgress t)
			      :typeDefinitionProvider
			      (:workDoneProgress t)
			      :referencesProvider
			      (:workDoneProgress t)
			      :documentSymbolProvider
			      (:workDoneProgress t)
			      :workspaceSymbolProvider
			      (:workDoneProgress t)
			      :hoverProvider
			      (:workDoneProgress t)
			      :documentHighlightProvider
			      (:workDoneProgress t)
			      :renameProvider
			      (:prepareProvider t :workDoneProgress t)
			      :completionProvider
			      (:triggerCharacters
			       ["." "[" "\"" "'"]
			       :resolveProvider t :workDoneProgress t :completionItem
			       (:labelDetailsSupport t))
			      :signatureHelpProvider
			      (:triggerCharacters
			       ["(" "," ")"]
			       :workDoneProgress t)
			      :codeActionProvider
			      (:codeActionKinds
			       ["quickfix" "source.organizeImports"]
			       :workDoneProgress t)
			      :executeCommandProvider
			      (:commands
			       []
			       :workDoneProgress t)
			      :callHierarchyProvider t :workspace
			      (:workspaceFolders
			       (:supported t :changeNotifications t)))))
[client-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "initialized" :params #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
							    ()))
[client-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "textDocument/didOpen" :params
	  (:textDocument
	   (:uri "file:///private/tmp/reproduce-bug/poc.py" :version 0 :languageId "python" :text "from dotenv import load_dotenv\n\nload_dotenv()  # take environment variables\n")))
[client-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "workspace/didChangeConfiguration" :params
	  (:settings
	   (:python
	    (:pythonPath "/tmp/reproduce-bug/.venv/bin/python" :venvPath "/tmp/reproduce-bug/.venv/"))))
[server-request] (id:0) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 0 :method "client/registerCapability" :params
	  (:registrations
	   [(:id "b4784d21-9050-40f1-b613-49b3ef9851f6" :method "workspace/didChangeWatchedFiles" :registerOptions
		 (:watchers
		  [(:globPattern "**/pyrightconfig.json" :kind 7)
		   (:globPattern "**" :kind 7)]))]))
[client-reply] (id:0) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 0 :result nil)
[server-request] (id:1) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 1 :method "workspace/configuration" :params
	  (:items
	   [(:scopeUri "file:///private/tmp/reproduce-bug" :section "python")]))
[client-reply] (id:1) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 1 :result
	  [(:pythonPath "/tmp/reproduce-bug/.venv/bin/python" :venvPath "/tmp/reproduce-bug/.venv/")])
[server-request] (id:2) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 2 :method "workspace/configuration" :params
	  (:items
	   [(:scopeUri "file:///private/tmp/reproduce-bug" :section "python.analysis")]))
[client-reply] (id:2) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 2 :result
	  [nil])
[server-request] (id:3) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 3 :method "workspace/configuration" :params
	  (:items
	   [(:scopeUri "file:///private/tmp/reproduce-bug" :section "pyright")]))
[client-reply] (id:3) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 3 :result
	  [nil])
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Setting pythonPath for service \"/tmp/reproduce-bug/\": \"/tmp/reproduce-bug/.venv/bin/python\""))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "No include entries specified; assuming /private/tmp/reproduce-bug"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Auto-excluding **/node_modules"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Auto-excluding **/__pycache__"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Auto-excluding **/.*"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Assuming Python version 3.13.1.final.0"))
[server-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "window/logMessage" :params
	  (:type 3 :message "Found 2 source files"))
[server-request] (id:4) Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :id 4 :method "client/registerCapability" :params
	  (:registrations
	   [(:id "fb09fcb6-18dc-4e28-864a-5b5cfe0fcb89" :method "workspace/didChangeWatchedFiles" :registerOptions
		 (:watchers
		  [(:globPattern "**/pyrightconfig.json" :kind 7)
		   (:globPattern "**" :kind 7)]))]))
[client-reply] (id:4) Sat Jan  4 22:43:05 2025:
(:jsonrpc "2.0" :id 4 :result nil)
[server-notification] Sat Jan  4 22:43:05 2025:
(:jsonrpc "2.0" :method "textDocument/publishDiagnostics" :params
	  (:uri "file:///private/tmp/reproduce-bug/poc.py" :version 0 :diagnostics
		[]))
[server-request] (id:5) Sat Jan  4 22:43:05 2025:
(:jsonrpc "2.0" :id 5 :method "client/unregisterCapability" :params
	  (:unregisterations
	   [(:id "b4784d21-9050-40f1-b613-49b3ef9851f6" :method "workspace/didChangeWatchedFiles")]))
[client-reply] (id:5) Sat Jan  4 22:43:05 2025:
(:jsonrpc "2.0" :id 5 :result nil)

[blahgeek]

Thanks for the very detailed report.

Going though your log, I think the different may come from this:

[client-notification] Sat Jan  4 22:41:19 2025:
(:jsonrpc "2.0" :method "workspace/didChangeConfiguration" :params
	  (:settings #s(hash-table size 1 test eql rehash-size 1.5 rehash-threshold 0.8125 data
				   ())))

vs

[client-notification] Sat Jan  4 22:43:04 2025:
(:jsonrpc "2.0" :method "workspace/didChangeConfiguration" :params
	  (:settings
	   (:python
	    (:pythonPath "/tmp/reproduce-bug/.venv/bin/python" :venvPath "/tmp/reproduce-bug/.venv/"))))

This client notification sends the virtual env path to the server. If this step goes wrong, it may explain what you experienced. According to the log, when eglot-booster-mode is enabled, the client sends the settings as a hashtable instead of a plist.

I don't think the emacs-lsp-booster process have something to do with this, since it simply forwards the content as-is in the client->server direction. Maybe it's related to some settings by eglot-booster-mode. @jdtsmith Any comment?

[jdtsmith]

No, emacs-lsp-booster does not alter workspace settings at all. In fact I use this same LSP server with it, and have no problems. So this is probably a bug with pet. Looking at pet, it hard-codes the names of various LSP servers, and advises various eglot commands to look them up. With the wrapper, the server name starts with /path/to/emacs-lsp-booster....

pet looks a bit heavy handed for simply setting the correct python path in the eglot workspace. I simply configure a eglot-workspace-configuration function to do this.

[ramsayleung]

Thanks for your comment, I've CCed this issue to the author of pet, @jdtsmith would you like to share your workflow with eglot-workspace-configuration for heads-up, so I could have another option to recognize the packages in virtual environment if pet is not compatible with lsp-booster.

[jdtsmith]

In the end you just need to set eglot-workspace-configuration to a function that returns a plist. Or perhaps easier, just use a config file in your project (see this example).

[wyuenho]

eglot-booster and pet are advising completely different functions, they should not interfere with each other. pet purposely does not modify eglot-workspace-configuration directly, but instead advises eglot--workspace-configuration-plist in case the user has configured eglot-workspace-configuration with plain executable names.

When an empty hash table is sent in eglot-signal-didChangeConfiguration, it could only mean that eglot--workspace-configuration-plist is returning a nil. So the most interesting questions are:

What do you see from M-x eglot-show-workspace-configuration and,

How exactly do you enable eglot-booster-mode?

[ramsayleung]

Not special, magical step to enable eglot-booster-mode, just by following the steps in README of eglot-booster-mode:

1. I just installed eglot-booster-mode via package-vc-install,
2. then put into my init.el

(use-package eglot-booster
	:after eglot
	:config	(eglot-booster-mode))

3. restart my Emacs.

What do you see from M-x eglot-show-workspace-configuration, just null: