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VimでPythonを快適に編集するための設定

python編集できるようにvimの設定をしてみました。perlでも殆ど同じような事をやっていたんですが、補完と保存時のsyntax check、それとpython周り固有のindent設定ですね。

  • indentが異なってるとエラーになるのでindent周りの設定
  • save時にsyntax checkして、QuickFixでエラー表示
    • Pyflakesだとそんなに気にならない。Pylintをこの用途で使うのは遅くて無理あり。
  • pydiction, tagsで補完

実現できてないのはコードの整形。pythonでperltidyみたいなのがあるといいなぁ。

"" Only do this when not done yet for this buffer
if (exists("b:did_ftplugin"))
    finish
endif
let b:did_ftplugin = 1

"--------------------------------------------------
" Code style
"--------------------------------------------------
setlocal autoindent
setlocal smartindent cinwords=if,elif,else,for,while,try,except,finally,def,class
setlocal textwidth=80
setlocal tabstop=4
setlocal softtabstop=4
setlocal shiftwidth=4
setlocal expandtab
setlocal smarttab

"--------------------------------------------------
"syntax highlight
"--------------------------------------------------
let python_highlight_all=1

"--------------------------------------------------
" Completion
"--------------------------------------------------
" Turn on completion:
setlocal omnifunc=pythoncomplete#Complete

" tags
setlocal tags+=~/.vim/tags/python/python.tags

"--------------------------------------------------
" Syntax Check
"--------------------------------------------------
function! PythonGrep(tool)
  set lazyredraw              
  " Close any existing cwindows.
  cclose                       
  let l:grepformat_save = &grepformat
  let l:grepprogram_save = &grepprg 
  set grepformat&vim                
  set grepformat&vim                
  let &grepformat = '%f:%l:%m'      
  if a:tool == "pylint"             
    let &grepprg = 'pylint --output-format=parseable --reports=n --rcfile=$HOME/.pylint --indent-string="        "'
  elseif a:tool == "pychecker"                                                             
    let &grepprg = 'pychecker --quiet -q'                                                  
  elseif a:tool == "pyflakes"                                                              
    let &grepprg = 'pyflakes'                                                              
  else                                                                                     
    echohl WarningMsg                                                                      
    echo "PythonGrep Error: Unknown Tool"                                                  
    echohl none                                                                            
  endif                                                                                    
  if &readonly == 0 | update | endif                                                       
  silent! grep! %                                                                          
  let &grepformat = l:grepformat_save                                                      
  let &grepprg = l:grepprogram_save                                                        
  let l:mod_total = 0                                                                      
  let l:win_count = 1                                                                      
  " Determine correct window height                                                        
  windo let l:win_count = l:win_count + 1                                                  
  if l:win_count <= 2 | let l:win_count = 4 | endif                                        
  windo let l:mod_total = l:mod_total + winheight(0)/l:win_count |                         
        \ execute &#39;resize +&#39;.l:mod_total                                                   
  " Open cwindow                                                                           
  execute &#39;belowright cw &#39;.l:mod_total                                                     
  nnoremap   c :cclose                                                 
  set nolazyredraw                                                                         
  redraw!                                                                                  
endfunction

command! Pyflakes call PythonGrep(&#39;pyflakes&#39;)
command! PyFlakes call PythonGrep(&#39;pyflakes&#39;)
command! Pychecker call PythonGrep(&#39;pychecker&#39;)
command! PyChecker call PythonGrep(&#39;pychecker&#39;)
command! Pylint call PythonGrep(&#39;pylint&#39;)
command! PyLint call PythonGrep(&#39;pylint&#39;)

" These three are successively more informative and aggressive in their
" warnings with pyflakes as the least noisy. Only uncomment one.
autocmd BufWrite *.{py} :Pyflakes
"autocmd BufWrite *.{py} :Pychecker
"autocmd BufWrite *.{py} :Pylint

pyflakesは、

sudo pip install pyflakes

でインストールしておく

# python周りはindentはdefaultは、2spaceでもいいかなぁと思いつつ、少し悩み中。PEPの影響か4spaceのものがライブラリ見てても多い気がするので。