"definitive" source on advanced python?

[vdrab]

Hi all,

Is there some sort of coherent source (dead tree format, maybe?) on
some of the more advanced features
of python (decorators, metaclasses, etc)? I'm sort of looking for a
python book that actually gets to the good stuff at some point, without
first spending 6 chapters on how to append ints to a list. I can't seem
to find any.

I get the impression people just get by with scraps and code snippets
posted on blogs left and right. (hope I'm wrong and my google skills
just suck ...)

Thanks in advance,

stijn.