> But, dear Antoine, i don't know *any* editor that is capable to 
> handle the following code correctly:
> 
> #ifdef __APPLE__
>     if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iiO&O&|OOi:sendfile",
>         keywords, &out, &in, _parse_off_t, &offset, _parse_off_t, &sbytes,
> #else
>     if (!PyArg_ParseTupleAndKeywords(args, kwdict, "iiO&n|OOi:sendfile",
>         keywords, &out, &in, _parse_off_t, &offset, &len,
> #endif
>                 &headers, &trailers, &flags))

What do you mean with "handling"? If you are asking your editor to
understand the C language, then it might indeed have a problem.
If you are asking your editor to simply edit test, it should work fine.