I just ordered DIP3 yesterday, after having finished DIP. Since the original DIP was based on v2.33 I am currently missing a lot of new features: decorators, descriptors, meta classes, dictionary and set comprehensions et al. DIP was awesome! and I think I have learned a lot from Mark's pragmatic conversational style.
Regarding DIP3. As someone pointed out that the new book has not gained much traction since its release in late 2009. But I have a feeling this might have changed now with v2.7 release with which most of the v3 features have been back ported to 2.x already and I am wondering if it's actually safe to read this book while using v2.7.2?
Many of its major features have also been backported to the backwards-compatible
Python 2.6 and 2.7.