diff --git a/ftplugin/python.vim b/ftplugin/python.vim
index 8401525..e36ae2d 100644
--- a/ftplugin/python.vim
+++ b/ftplugin/python.vim
@@ -9,5 +9,6 @@ set foldnestmax=1
 
 set colorcolumn=88
 
+noremap  <F4> <Esc>:w<CR>:!clear;python %<CR>
 nnoremap <silent> <buffer> <F5> :call SaveAndExecute('python')<CR>
 command! CTagsPython !ctags -R --fields=+l --languages=python --python-kinds=-iv -f ./.tags-py $(python -c "import os, sys; print(' '.join('{}'.format(d) for d in sys.path if os.path.isdir(d)))")