updating scipy_core. So I suspect either you'll have to find
> a more clever way of importing ffts that maintains
> compatibility across recent inconsistent scipy_core releases,
> or you'll have to require mpl users to update scipy_core. A
> bit of a mess....
I don't see that as a problem -- people who want to use scipy core
should expect to have to update often for the next while, since it is
a new package.