-" language-specific settings
-autocmd FileType html setlocal shiftwidth=2 softtabstop=2 tabstop=2
-autocmd FileType javascript setlocal shiftwidth=2 softtabstop=2 tabstop=2
-autocmd FileType ruby setlocal shiftwidth=2 softtabstop=2 tabstop=2
+" language-specific settings: tab width is 4 for python
+autocmd FileType python setlocal shiftwidth=4 softtabstop=4 tabstop=4
+
+"allow projet-specific vimrcs
+set exrc
+set secure " Don't execute :autocmd in project-specific vimrcs unless owned by me