Books on scientific/numeric programming in Python?

[Francis Burton]

Hi,

I wondered if any books have been published which focus on using
Python for scientific data processing, numerical methods, mathematics
and/or statistics? There are a few relevant nuggets in the excellent
"Python Cookbook", but it would be nice to have a book dedicated to
the subject. If not, there's a gaping niche in the market waiting to
be filled.

Francis