xref-find-definitions brings up error "EGLOT not running"

[halloleo]

I try to use xref-find-definitions to jump to the definition of a symbol in a Python file after switching eglot on then I get

eldoc error: (error Process EGLOT (MyProject/python-mode) not running)

I guess in order to trouble shoot this I need to give all the details I can get hold of. - Ok, here you go:

Key info

• Server used: pyls
• Emacs version: GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30) of 2021-09-07
• Operating system: Linux RHEL 8.3
• Eglot version: 20220112.1835
• Eglot installation method: package.el/use-package (updated via package.el)
• Using Doom: No

LSP transcript

[client-request] (id:1) Thu Jan 13 12:31:07 2022:
(:jsonrpc "2.0" :id 1 :method "initialize" :params
          (:processId 1472147 :rootPath "/home/me/devel/MyProject/" :rootUri "file:///home/me/devel/MyProject" :initializationOptions #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                                                                                                                                                            ())
                      :capabilities
                      (:workspace
                       (:applyEdit t :executeCommand
                                   (:dynamicRegistration :json-false)
                                   :workspaceEdit
                                   (:documentChanges :json-false)
                                   :didChangeWatchedFiles
                                   (:dynamicRegistration t)
                                   :symbol
                                   (:dynamicRegistration :json-false)
                                   :configuration t)
                       :textDocument
                       (:synchronization
                        (:dynamicRegistration :json-false :willSave t :willSaveWaitUntil t :didSave t)
                        :completion
                        (:dynamicRegistration :json-false :completionItem
                                              (:snippetSupport :json-false)
                                              :contextSupport t)
                        :hover
                        (:dynamicRegistration :json-false :contentFormat
                                              ["markdown" "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)
                        :publishDiagnostics
                        (:relatedInformation :json-false :codeDescriptionSupport :json-false))
                       :experimental #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                   ()))))
[stderr] 2022-01-13 12:31:07,683 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'autopep8': No module named 'pycodestyle'
[stderr] 2022-01-13 12:31:07,693 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'mccabe': No module named 'mccabe'
[stderr] 2022-01-13 12:31:07,695 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pycodestyle': No module named 'pycodestyle'
[stderr] 2022-01-13 12:31:07,696 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pydocstyle': No module named 'pydocstyle'
[stderr] 2022-01-13 12:31:07,696 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pyflakes': No module named 'pyflakes'
[stderr] 2022-01-13 12:31:07,697 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pylint': No module named 'pylint'
[stderr] 2022-01-13 12:31:07,698 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'rope_completion': No module named 'rope'
[stderr] 2022-01-13 12:31:07,699 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'rope_rename': No module named 'rope'
[stderr] 2022-01-13 12:31:07,700 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'yapf': No module named 'yapf'
[server-reply] (id:1) Thu Jan 13 12:31:07 2022:
(:jsonrpc "2.0" :id 1 :result
          (:capabilities
           (:codeActionProvider t :codeLensProvider
                                (:resolveProvider :json-false)
                                :completionProvider
                                (:resolveProvider :json-false :triggerCharacters
                                                  ["."])
                                :documentFormattingProvider t :documentHighlightProvider t :documentRangeFormattingProvider t :documentSymbolProvider t :definitionProvider t :executeCommandProvider
                                (:commands
                                 [])
                                :hoverProvider t :referencesProvider t :renameProvider t :foldingRangeProvider t :signatureHelpProvider
                                (:triggerCharacters
                                 ["(" "," "="])
                                :textDocumentSync
                                (:change 2 :save
                                         (:includeText t)
                                         :openClose t)
                                :workspace
                                (:workspaceFolders
                                 (:supported t :changeNotifications t))
                                :experimental nil)))
[client-notification] Thu Jan 13 12:31:07 2022:
(:jsonrpc "2.0" :method "initialized" :params #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                            ()))
[client-notification] Thu Jan 13 12:31:07 2022:
(:jsonrpc "2.0" :method "workspace/didChangeConfiguration" :params
          (:settings nil))
[client-request] (id:2) Thu Jan 13 12:31:32 2022:
(:jsonrpc "2.0" :id 2 :method "shutdown" :params nil)
[server-reply] (id:2) Thu Jan 13 12:31:32 2022:
(:jsonrpc "2.0" :id 2 :result nil)
[client-notification] Thu Jan 13 12:31:32 2022:
(:jsonrpc "2.0" :method "exit" :params nil)
[internal] Thu Jan 13 12:31:32 2022:
(:message "Connection state changed" :change "killed\n")

----------b---y---e---b---y---e----------
[stderr] 
[stderr] 
[stderr] nil
[stderr] nil
[stderr] Process EGLOT (MyProject/python-mode) stderr finished
[client-request] (id:1) Thu Jan 13 12:31:33 2022:
(:jsonrpc "2.0" :id 1 :method "initialize" :params
          (:processId 1472147 :rootPath "/home/me/devel/MyProject/" :rootUri "file:///home/me/devel/MyProject" :initializationOptions #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                                                                                                                                                            ())
                      :capabilities
                      (:workspace
                       (:applyEdit t :executeCommand
                                   (:dynamicRegistration :json-false)
                                   :workspaceEdit
                                   (:documentChanges :json-false)
                                   :didChangeWatchedFiles
                                   (:dynamicRegistration t)
                                   :symbol
                                   (:dynamicRegistration :json-false)
                                   :configuration t)
                       :textDocument
                       (:synchronization
                        (:dynamicRegistration :json-false :willSave t :willSaveWaitUntil t :didSave t)
                        :completion
                        (:dynamicRegistration :json-false :completionItem
                                              (:snippetSupport :json-false)
                                              :contextSupport t)
                        :hover
                        (:dynamicRegistration :json-false :contentFormat
                                              ["markdown" "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)
                        :publishDiagnostics
                        (:relatedInformation :json-false :codeDescriptionSupport :json-false))
                       :experimental #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                   ()))))
[stderr] 2022-01-13 12:31:33,288 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'autopep8': No module named 'pycodestyle'
[stderr] 2022-01-13 12:31:33,296 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'mccabe': No module named 'mccabe'
[stderr] 2022-01-13 12:31:33,297 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pycodestyle': No module named 'pycodestyle'
[stderr] 2022-01-13 12:31:33,298 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pydocstyle': No module named 'pydocstyle'
[stderr] 2022-01-13 12:31:33,299 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pyflakes': No module named 'pyflakes'
[stderr] 2022-01-13 12:31:33,299 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'pylint': No module named 'pylint'
[stderr] 2022-01-13 12:31:33,300 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'rope_completion': No module named 'rope'
[stderr] 2022-01-13 12:31:33,301 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'rope_rename': No module named 'rope'
[stderr] 2022-01-13 12:31:33,301 UTC - WARNING - pyls.config.config - Failed to load pyls entry point 'yapf': No module named 'yapf'
[server-reply] (id:1) Thu Jan 13 12:31:33 2022:
(:jsonrpc "2.0" :id 1 :result
          (:capabilities
           (:codeActionProvider t :codeLensProvider
                                (:resolveProvider :json-false)
                                :completionProvider
                                (:resolveProvider :json-false :triggerCharacters
                                                  ["."])
                                :documentFormattingProvider t :documentHighlightProvider t :documentRangeFormattingProvider t :documentSymbolProvider t :definitionProvider t :executeCommandProvider
                                (:commands
                                 [])
                                :hoverProvider t :referencesProvider t :renameProvider t :foldingRangeProvider t :signatureHelpProvider
                                (:triggerCharacters
                                 ["(" "," "="])
                                :textDocumentSync
                                (:change 2 :save
                                         (:includeText t)
                                         :openClose t)
                                :workspace
                                (:workspaceFolders
                                 (:supported t :changeNotifications t))
                                :experimental nil)))
[client-notification] Thu Jan 13 12:31:33 2022:
(:jsonrpc "2.0" :method "initialized" :params #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8125 data
                                                            ()))

Backtrace

Debugger entered--Lisp error: (error "Process EGLOT (MyProject/python-mode) not ...")
  process-send-string(#<process EGLOT (MyProject/python-mode)> "Content-Length: 233\15\n\15\n{\"jsonrpc\":\"2.0\",\"id\":5,\"me...")
  #f(compiled-function (arg1 &rest rest) "Send MESSAGE, a JSON object, to CONNECTION." #<bytecode 0xbe833d>)(#<eglot-lsp-server eglot-lsp-server-ae806c> :id 5 :method :textDocument/definition :params (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)))
  apply(#f(compiled-function (arg1 &rest rest) "Send MESSAGE, a JSON object, to CONNECTION." #<bytecode 0xbe833d>) #<eglot-lsp-server eglot-lsp-server-ae806c> (:id 5 :method :textDocument/definition :params (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42))))
  jsonrpc-connection-send(#<eglot-lsp-server eglot-lsp-server-ae806c> :id 5 :method :textDocument/definition :params (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)))
  jsonrpc--async-request-1(#<eglot-lsp-server eglot-lsp-server-ae806c> :textDocument/definition (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)) :success-fn #f(compiled-function (result) #<bytecode 0xca4ec1>) :error-fn #f(compiled-function (jsonrpc-lambda-elem0) #<bytecode 0xca4eed>) :timeout-fn #f(compiled-function () #<bytecode 0xca4f0d>))
  apply(jsonrpc--async-request-1 #<eglot-lsp-server eglot-lsp-server-ae806c> :textDocument/definition (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)) :success-fn #f(compiled-function (result) #<bytecode 0xca4ec1>) :error-fn #f(compiled-function (jsonrpc-lambda-elem0) #<bytecode 0xca4eed>) :timeout-fn #f(compiled-function () #<bytecode 0xca4f0d>) nil)
  #f(compiled-function (arg1 arg2 arg3 &rest rest) "Make a request to CONNECTION, wait for a reply.\nLike `jsonrpc-async-request' for CONNECTION, METHOD and PARAMS,\nbut synchronous.\n\nExcept in the case of a non-nil CANCEL-ON-INPUT (explained\nbelow), this function doesn't exit until anything interesting\nhappens (success reply, error reply, or timeout).  Furthermore,\nit only exits locally (returning the JSONRPC result object) if\nthe request is successful, otherwise it exits non-locally with an\nerror of type `jsonrpc-error'.\n\nDEFERRED and TIMEOUT as in `jsonrpc-async-request', which see.\n\nIf CANCEL-ON-INPUT is non-nil and the user inputs something while\nthe function is waiting, then it exits immediately, returning\nCANCEL-ON-INPUT-RETVAL.  Any future replies (normal or error) are\nignored." #<bytecode 0xb10fc9>)(#<eglot-lsp-server eglot-lsp-server-ae806c> :textDocument/definition (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)))
  apply(#f(compiled-function (arg1 arg2 arg3 &rest rest) "Make a request to CONNECTION, wait for a reply.\nLike `jsonrpc-async-request' for CONNECTION, METHOD and PARAMS,\nbut synchronous.\n\nExcept in the case of a non-nil CANCEL-ON-INPUT (explained\nbelow), this function doesn't exit until anything interesting\nhappens (success reply, error reply, or timeout).  Furthermore,\nit only exits locally (returning the JSONRPC result object) if\nthe request is successful, otherwise it exits non-locally with an\nerror of type `jsonrpc-error'.\n\nDEFERRED and TIMEOUT as in `jsonrpc-async-request', which see.\n\nIf CANCEL-ON-INPUT is non-nil and the user inputs something while\nthe function is waiting, then it exits immediately, returning\nCANCEL-ON-INPUT-RETVAL.  Any future replies (normal or error) are\nignored." #<bytecode 0xb10fc9>) (#<eglot-lsp-server eglot-lsp-server-ae806c> :textDocument/definition (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42))))
  jsonrpc-request(#<eglot-lsp-server eglot-lsp-server-ae806c> :textDocument/definition (:textDocument (:uri "file:///home/me/devel/MyProject...") :position (:line 277 :character 42)))
  eglot--lsp-xrefs-for-method(:textDocument/definition)
  #f(compiled-function (backend identifier) #<bytecode 0xc481e9>)(eglot "LSP identifier at point.")
  apply(#f(compiled-function (backend identifier) #<bytecode 0xc481e9>) eglot "LSP identifier at point.")
  xref-backend-definitions(eglot "LSP identifier at point.")
  #f(compiled-function () #<bytecode 0xca4e21>)()
  xref-show-definitions-buffer(#f(compiled-function () #<bytecode 0xca4e21>) ((window . #<window 3 on WastewaterCatchments.py>) (display-action) (auto-jump)))
  xref--show-defs(#f(compiled-function () #<bytecode 0xca4e21>) nil)
  xref--find-definitions("LSP identifier at point." nil)
  xref-find-definitions("LSP identifier at point.")
  funcall-interactively(xref-find-definitions "LSP identifier at point.")
  call-interactively(xref-find-definitions nil nil)
  command-execute(xref-find-definitions)

I hope this leads to some pointers for me how I can fix this.