On Mon, 10 May 2010 20:40:00 +0400, Oleg Broytman <phd@phd.pp.ru> wrote:
> On Mon, May 10, 2010 at 04:09:06PM +0200, Ronald Oussoren wrote:
> > Does anyone know of a way to teach vim that C sources in a python checkout should have 4-space indents without changing the defaults for other C files?
>
> BufReadPre /usr/local/src/Python/*/*.c set sts=4 sw=4

Alternatively you could sniff the file for leading tabs and set the
"filetype" or the tab setting based on that.  I think Brett has a vimrc
somewhere that does something like that.