function! Send(host, port, msg)
  python <<EOF
import vim
import socket
cs = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
cs.connect((vim.eval('a:host'), int(vim.eval('a:port'))))
cs.sendall(vim.eval('a:msg'))
cs.close()
EOF
endfunction

function! GetSelected()
  let tmp = @@
  silent normal gvy
  let selected = @@
  let @@ = tmp
  return selected
endfunction

command! -nargs=1 PSend call Send('localhost', <args>, GetSelected())
vnoremap cp <Esc>:PSend port<CR>