[Cython] cimport across packages

[Jay Parlar]

On 7/10/08, Anatoly A. Kazantsev <jim-crow at rambler.ru> wrote:
> Why do you want to split 2 files to different directories?
>  Just put them in one root directory of your project sources.

Why do people ever separate their files into different directories?
It's a better, more logical layout, given our project. There are a lot
more files involved than the ones I'm talking about here, these just
happen to be the Cython files.

Jay P.