A big book (I mean, your nightstand better be solid) with advanced technics in Python. Not recommended for the beginner, it's still focused on the standard library but that's enough. Obviously, I haven't finished reading it yet but from the first chapter alone you learn a lot of stuff.
Roughly speaking the book is for middle-level pythonistas. And it absolutely awesome this audience. As the author says in introduction, the book aims at bringing novice but experienced python programmers to new level. To get "fluent" with Python.
With clear, concise text and lots of good examples he does exactly that. The book examines a range of Python internals: introspection, including annotations and, if I remember it well, a neat example in request handling routines from Django or another web framework, also method calling and hence method wrapping, hashing and mutable/immutable objects in Python, reference passing with scope of variables etc. It goes through standard library: collections, vectors (indexing them in custom ways) etc. Sometimes third party libraries are reviewed as well. And every chapter has very good pointers for further reading and third party libraries.
The conventions and duck-typing protocols of Python are also walked through.
It's really "Python-oriented", as the author says in preface: "Its emphasis is on the language features that are either unique to Python or not found in many other popular languages."
Really recommend for everybody who wants to get thorough and good practical understanding of Python language.
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