EMACS Python IDE 配置

安装和配置

• 安装 Python 包
  pip3 install flake8 jedi importmagic autopep8 yapf rope

• 安装 Emacs 包
  better-defaults
  elpy
  auto-complete
  py-autopep8
  flycheck
  material-theme

• ~/.emacs.d/init.el 设置

(set-language-environment 'UTF-8)
(set-default-coding-systems 'utf-8)
(set-file-name-coding-system 'gb2312)

(setq
   auto-save-visited-file-name t
   backup-by-copying t      ; don't clobber symlinks
   backup-directory-alist
    '(("." . "~/.saves"))    ; don't litter my fs tree
   delete-old-versions nil
   kept-new-versions 6
   kept-old-versions 2
   version-control nil)       ; don't use versioned backups

(custom-set-variables
    '(indent-tabs-mode nil)
    '(inhibit-startup-screen t)
    '(package-selected-packages
       (quote
         (markdown-mode elpy python py-autopep8 mocha material-theme flycheck-pycheckers better-defaults auto-complete angular-mode)))
     '(scroll-bar-mode nil)
     '(show-paren-mode t)
     '(tool-bar-mode nil))

(require 'package)
(add-to-list 'package-archives
	     '("melpa" . "https://stable.melpa.org/packages/") t)
(package-initialize)

(require 'elpy)
(setq elpy-rpc-python-command "c:/Python37/python")
(setq python-shell-interpreter "c:/Python37/python")
(elpy-enable)
(ac-config-default) 
;; No eldoc mode, always prompt error
(global-eldoc-mode 0)

(global-linum-mode t)  ;;display line number
(load-theme 'material t) ;; load material theme

(when (require 'flycheck nil t)
  (setq elpy-modules (delq 'elpy-module-flymake elpy-modules))
  (add-hook 'elpy-mode-hook 'flycheck-mode))

;; enable autopep8 formatting on save
(require 'py-autopep8)
(add-hook 'elpy-mode-hook 'py-autopep8-enable-on-save)

• 字体设置
  首先 toggle-menu-bar-mode-from-frame, 然后在菜单 options 中点击 set default fonts, 选择字体，最后在点击菜单中 save options
• elpy 设置
  运行 M-x elpy-config ，修改 group elpy 中 option elpy modules 去掉 Display indentation markers (highlight-indentation)，这样在缓冲区就不会显示缩进的那个方块了。
• flake8 配置
  如果找不到 flake8, 那么 M-x customize-group 输入 Flycheck, 设置 Flycheck Python Flake8 Executable 为 C:/PythonXY/scripts/flake8.exe
  或者 M-x elpy-config 在 elpy 下面，设置 Elpy Syntax Check Command 为 C:/PythonXY/scripts/flake8.exe

基本使用方法

• 执行脚本
  执行缓冲区 C-c C-c
  执行当前语句 C-RET
• 重新格式代码 C-c C-r f