Don't waste your time trying to fit Python into programming styles you know from other languages. Python is so simple that you'll get the hang of it very quickly, but building effective modern programs requires more advanced knowledge. The second edition of the book will allow you to take full advantage of Python 3, taking advantage of the best ideas. The author talks about the basic tools of the language, its libraries and teaches how to write shorter, faster and more readable code. You'll learn how to use Python 3 idiomatic features beyond your previous experience. The new edition is divided into five parts, which can be thought of as five separate books. Data structures: sequences, dictionaries, sets, Unicode, and data classes. Functions like objects: full functions, related design patterns, and type annotations in function declarations. Object-oriented idioms: composition, inheritance, mixin classes, interfaces, operator overloading, protocols, and additional static types. Control flow: context managers, generators, coroutines, async/await, process and thread pools. Metaprogramming: properties, attribute descriptors, class decorators, and new class metaprogramming tools to replace or simplify metaclasses.