From b32ce233184cc5e645192276dc34386ffcffd937 Mon Sep 17 00:00:00 2001
From: Marc Pohling <marc.pohling@googlemail.com>
Date: Sun, 6 May 2018 09:17:43 +0200
Subject: [PATCH] added language server protocol for python

---
 config.org | 45 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/config.org b/config.org
index 0649b9f..23780c1 100644
--- a/config.org
+++ b/config.org
@@ -1103,8 +1103,8 @@ Common backends are:
 #+BEGIN_SRC emacs-lisp
  (defun company/python-mode-hook()
    (set (make-local-variable 'company-backends)
-        '((company-jedi company-dabbrev company-yasnippet) company-capf company-files))
-;;        '((company-jedi company-dabbrev) company-capf company-files))
+;        '((company-jedi company-dabbrev-code company-yasnippet) company-capf company-files))
+        '((company-lsp company-yasnippet) company-capf company-dabbrev company-files))
    (company-mode t)
  )
 #+END_SRC
@@ -1252,9 +1252,14 @@ Add some helpers to handle and understand macros
    - venv
 
    The virtual environments need to have following modules installed:
+   - wheel (for some reason it isn't pulled by other packages, yet they complain about missing wheel)
    - jedi
    - epc
    - pylint
+   - NEW: python-language-server[all]
+     - instead of [all] there are
+
+   for python-language-server see here: [[https://github.com/palantir/python-language-server][Link]]
 
    Automatically start python-mode when opening a .py-file.
    Not sure if python.el is better than python-mode.el.
@@ -1278,6 +1283,42 @@ Add some helpers to handle and understand macros
 )
 #+END_SRC
 
+  First test for lsp-python.
+  Source python language server: [[https://github.com/palantir/python-language-server][Link]]
+  Source lsp-mode:
+  Source lsp-python: [[https://github.com/emacs-lsp/lsp-python][Link]]
+  Source company-lsp: [[https://github.com/tigersoldier/company-lsp][Link]]
+  Source lsp-ui: [[https://github.com/emacs-lsp/lsp-ui][Link]]
+
+#+BEGIN_SRC emacs-lisp
+(use-package lsp-mode
+  :ensure t
+  :defer t)
+
+(add-hook 'lsp-mode-hook #'(lambda ()
+                             (customize-set-variable 'lsp-enable-eldoc nil)
+                             (flycheck-mode 1)
+                             (company-mode 1)))
+
+(use-package lsp-ui
+  :ensure t
+  :defer t)
+
+(use-package company-lsp
+  :ensure t
+  :defer t)
+
+(use-package lsp-python
+  :ensure t
+  :after lsp-mode
+  :defer t
+  :init
+  (add-hook 'python-mode-hook #'(lambda ()
+                                (lsp-python-enable)
+                                (flycheck-select-checker 'python-flake8))))
+
+#+END_SRC
+
 
 Jedi is a backend for python autocompletion and needs to be installed on the server:
 - pip install jedi