Create new, a little bit better structured configuration

* Group configuration by package, and only then by language mode
* Slim down all the languages

old/languages/python.el

@@ -0,0 +1,51 @@
+;;; Ruby -- summary
+;;; Commentary:
+
+;;; Code:
+(require 'elpy)
+(require 'pyenv-mode)
+(require 'company-jedi)
+
+;;========== Editor config =========================
+(defun editor-config-python ()
+  "Setup editor for Python."
+  (set-indent 4)
+  (set-width-79)
+  (setq python-indent-guess-indent-offset 4)
+  (setq python-indent-offset 4))
+
+;;========== Helper for pyenv ======================
+(defun ssbb-pyenv-hook ()
+  "Automatically activates pyenv version if .python-version file exists."
+  (f-traverse-upwards
+   (lambda (path)
+     (let ((pyenv-version-path (f-expand ".python-version" path)))
+       (if (f-exists? pyenv-version-path)
+           (pyenv-mode-set (s-trim (f-read-text pyenv-version-path 'utf-8))))))))
+
+(add-hook 'find-file-hook 'ssbb-pyenv-hook)
+
+;;========== Code completion =======================
+(defun completion-config-python ()
+  "Code completion and inspection for Python."
+  (elpy-mode 1)
+  (pyenv-mode 1)
+  (company-mode 1)
+
+  (flycheck-mode 1)
+  (flymake-mode 1)
+
+  (setq elpy-rpc-backend "jedi")
+  (jedi:setup)
+  (setq jedi:complete-on-dot t)
+  (setq jedi:complete-reply t)
+
+  (set (make-local-variable 'company-backends)
+       '((company-jedi elpy-company-backend company-capf company-dabbrev-code
+                               company-yasnippet company-files))))
+
+(add-hook 'python-mode-hook 'editor-config-python)
+(add-hook 'python-mode-hook 'completion-config-python)
+
+(provide 'python)
+;;; python.el ends here