lang-python.el

(setq exec-path (append exec-path '("~/.pyenv/bin")))

(use-package py-autopep8)

(use-package blacken)

(use-package elpy
  :init
  (add-to-list 'auto-mode-alist '("\\.py$" . python-mode))
  :config
  (setq elpy-rpc-backend "jedi")
  (add-hook 'python-mode-hook 'py-autopep8-enable-on-save)
  (add-hook 'python-mode-hook
	    (lambda ()
	      (setq indent-tabs-mode t)
	      (setq tab-width 4)
	      (setq python-indent-offset 4)))
  (setq elpy-modules (delq 'elpy-module-flymake elpy-modules))
  (add-hook 'elpy-mode-hook 'flycheck-mode)
  :bind (:map elpy-mode-map
	      ("M-." . elpy-goto-definition)
	      ("M-," . pop-tag-mark)))

;; (use-package focus
;;   :config
;;   (add-hook 'focus-mode-to-thing '(python-mode . paragaph)))

(use-package python
  :mode ("\\.py" . python-mode)
  :config
  (elpy-enable))

(use-package pip-requirements
  :config
  (add-hook 'pip-requirements-mode-hook #'pip-requirements-auto-complete-setup))

(use-package pyenv-mode
  :init
  (add-to-list 'exec-path "~/.pyenv/shims")
  (setenv "WORKON_HOME" "~/.pyenv/versions/")
  :config
  (pyenv-mode)
  :bind
  ("C-x p e" . pyenv-activate-current-project))

(defun pyenv-init()
  (setq global-pyenv (replace-regexp-in-string "\n" "" (shell-command-to-string "pyenv global")))
  (message (concat "Setting pyenv version to " global-pyenv))
  (pyenv-mode-set global-pyenv)
  (defvar pyenv-current-version nil global-pyenv))

(defun pyenv-activate-current-project ()
  "Automatically activates pyenv version if .python-version file exists."
  (interactive)
  (let ((python-version-directory (locate-dominating-file (buffer-file-name) ".python-version")))
    (if python-version-directory
        (let* ((pyenv-version-path (f-expand ".python-version" python-version-directory))
               (pyenv-current-version (s-trim (f-read-text pyenv-version-path 'utf-8))))
          (pyenv-mode-set pyenv-current-version)
          (message (concat "Setting virtualenv to " pyenv-current-version))))))

(add-hook 'after-init-hook 'pyenv-init)
(add-hook 'projectile-after-switch-project-hook 'pyenv-activate-current-project)

(setq-default python-indent-offset 4)

(provide 'lang-python)