pycomment.vim

"pycomment
"comment selected line

function! PyComment#com()
    let b:l1 = line("'<")
    let b:l2 = line("'>")
    let b:cmd_ = ":" . b:l1 . "," . b:l2 . "s/^/#/g"
    exec b:cmd_
endfunction


function! PyComment#uncom()
    let b:l1 = line("'<")
    let b:l2 = line("'>")
    let b:cmd_ = ":". b:l1 . "," . b:l2 . "s/\\v^([\\t\\s]*)#+/\\1/"
    exec b:cmd_
endfunction

augroup python comment
    autocmd!
    autocmd FileType *.py vnoremap <c-/> <esc>:call PyComment#com()<enter> |
                        \ vnoremap <c-,> <esc>:call PyComment#uncom()<enter>
augroup end