neovim打造pythonIDE

install neovim

进入neovim下载页面neovim_downpage下载并安装对应版本（此处为win32）

install Python

进入Python_Downpage下载安装Python安装时注意勾选pip一并安装

在Powershell中使用neovim

以管理员身份运行powershell并输入
Set-ExecutionPolicy RemoteSigned（按Y确定后）

new-item -path $profile -itemtype file -force

修改图示路径下对应文件 内容为

set-alias vim "C:\Users\63164\nvim\Neovim\bin\nvim.exe" # 此处为vim的安装路径

重启powershell输入vim

• **
• **

安装配置nvim插件(vim-plug)

此次安装环境为win10 powershell 安装neovim
powershell执行下述命令

md ~\AppData\Local\nvim\autoload
$uri = 'https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
(New-Object Net.WebClient).DownloadFile(
  $uri,
  $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath(
    "~\AppData\Local\nvim\autoload\plug.vim"
  )
)

参考连接

plug.vim文件下载完成后,再创建对应路径下init.vim文件并修改

• Windows: ~\AppData\Local\nvim\init.vim

if has('win32') || has('win64')
  let g:plugged_home = '~/AppData/Local/nvim/plugged'
else
  let g:plugged_home = '~/.vim/plugged'
endif
call plug#begin(g:plugged_home)
  Plug 'chriskempson/base16-vim'
  Plug 'vim-airline/vim-airline'
  Plug 'vim-airline/vim-airline-themes'
  Plug 'Yggdroot/indentLine'
  Plug 'w0rp/ale'
  Plug 'ncm2/ncm2'
  Plug 'roxma/nvim-yarp'
  Plug 'ncm2/ncm2-bufword'
  Plug 'ncm2/ncm2-path'
  Plug 'ncm2/ncm2-jedi'
    Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }
  Plug 'Chiel92/vim-autoformat'
call plug#end()
filetype plugin indent on

进入vim,命令行模式下输入
PlugInstall

安装后如上图所示

完成后,继续配置init.vim文件(颜色,缩进,快捷键等)

" Configurations Part
" UI configuration
syntax on
syntax enable
" colorscheme
let base16colorspace=256
colorscheme base16-gruvbox-dark-hard
set background=dark
" True Color Support if it's avaiable in terminal
if has("termguicolors")
    set termguicolors
endif
if has("gui_running")
  set guicursor=n-v-c-sm:block,i-ci-ve:block,r-cr-o:blocks
endif
set number
set relativenumber
set hidden
set mouse=a
set noshowmode
set noshowmatch
set nolazyredraw
" Turn off backup
set nobackup
set noswapfile
set nowritebackup
" Search configuration
set ignorecase                    " ignore case when searching
set smartcase                     " turn on smartcase
" Tab and Indent configuration
set expandtab
set tabstop=4
set shiftwidth=4
" vim-autoformat
noremap <F3> :Autoformat<CR>
" NCM2
augroup NCM2
  autocmd!
  " enable ncm2 for all buffers
  autocmd BufEnter * call ncm2#enable_for_buffer()
  " :help Ncm2PopupOpen for more information
  set completeopt=noinsert,menuone,noselect
  " When the <Enter> key is pressed while the popup menu is visible, it only
  " hides the menu. Use this mapping to close the menu and also start a new line.
  inoremap <expr> <CR> (pumvisible() ? "\<c-y>\<cr>" : "\<CR>")
  " uncomment this block if you use vimtex for LaTex
  " autocmd Filetype tex call ncm2#register_source({
  "           \ 'name': 'vimtex',
  "           \ 'priority': 8,
  "           \ 'scope': ['tex'],
  "           \ 'mark': 'tex',
  "           \ 'word_pattern': '\w+',
  "           \ 'complete_pattern': g:vimtex#re#ncm2,
  "           \ 'on_complete': ['ncm2#on_complete#omni', 'vimtex#complete#omnifunc'],
  "           \ })
augroup END
" Ale
let g:ale_lint_on_enter = 0
let g:ale_lint_on_text_changed = 'never'
let g:ale_echo_msg_error_str = 'E'
let g:ale_echo_msg_warning_str = 'W'
let g:ale_echo_msg_format = '[%linter%] %s [%severity%]'
let g:ale_linters = {'python': ['flake8']}
" Airline
let g:airline_left_sep  = ''
let g:airline_right_sep = ''
let g:airline#extensions#ale#enabled = 1
let airline#extensions#ale#error_symbol = 'E:'
let airline#extensions#ale#warning_symbol = 'W:'

Code completion and code lint/formatting

为了完成代码，语法检查和代码格式化，我们需要以下python包

• jedi for code completion: pip install jedi
• flake8 for code linting: pip install flake8
• autopep8 for code formatting: pip install autopep8

自动报错、代码格式化和自动补全全部OK 了

参考连接@yufanlu

其它插件

tmhedberg/SimpylFold #代码折叠

scrooloose/nerdtree #目录树

majutsushi/tagbar #右侧缩略树

VIM练级手册

@温欣爸比