[Zope-dev] Removing dependency between zope.location and zope.copy

Hello, I'm wondering if it would be possible to drop the dependency between zope.location and zope.copy. It makes sense to me because zope.location depends on zope.copy only because it registers a LocationCopyHook, not because it is really using anything from that package. Attached to this message you can find my (proposed) patch to remove the dependency making the adapter registration optional, and informing the developer that zope.copy is needed is he is importing directly the zope.location.pickling module. Comments? Thanks, Fabio