set noeb vb t_vb=
" Set tabs to width 4.
-set softtabstop=4
-set tabstop=4
-set shiftwidth=4
+filetype plugin indent on
+set shiftwidth=2
+set softtabstop=2
+set tabstop=2
set expandtab
+" language-specific settings
+autocmd FileType python setlocal shiftwidth=4 softtabstop=4 tabstop=4
+
" Allow backspacing over everything in insert mode.
set backspace=indent,eol,start