I don't think there is anything like that in scipy. Something which
could be useful would be to have a C++ class which reflects a numpy
array, for seamless integration between eg boost.python and numpy. But
that would be quite a challenge to get it right, I think.

OK, that confirms what I thought - nothing is in scipy at the moment -.
Well, I hope someone will have time and patience to make this bridge in the future ;)

Matthieu