vim/.vim/ftplugin/python/lsp.vim

   1 if executable("pyls")
   2     " pip install python-language-server
   3     au User lsp_setup call lsp#register_server({
   4     \    "name": "pyls",
   5     \    "cmd": {server_info->["pyls"]},
   6     \    "whitelist": ["python"],
   7     \})
   8 endif