> Guido, Brett, how much of the code should I change? import.c is mainly
> using file pointers. Should I replace all operations on FILE with
> operations on a file descriptor?

I think find_module() should return a file descriptor (fd), not a
FILE*, but most of the rest of the code should call fdopen() on that
fd. Only call_find_module() should use the fd to turn it into a Python
file object. Then the amount of change should be pretty minimal.

I recommend changing the name of the API used to turn a fd into file
object while we're at it; that's one of the few guidelines we have for
C API changes.