Python programming book

Can you recommend a Python programming book for a serious, professional 24-30 hour course for programmers?

I'd like to focus on advanced programming techniques and introduce them to functional programming, rather than teach them what's a while loop (that's assumed to be known) or just teach them syntax, functions and classes (I don't want a "translate Java into Python" course).

I've nothing against syntactic whitespace; Haskell has it too (although it's optional which is a Good Thing). It's just that it interacts badly with other language features as I mentioned above. I don't think Guido really put enough thought into the design of Python; none of the features by themselves are bad, but put together they just don't fit. He should take lessons from the Guy Steele school of design.