流畅的python2015

说明：  本书的目标读者是那些正在使用 Python，又想熟悉 Python 3 的程序员。 如果你懂 Python 2，但是想迁移到 Python 3.4 或者更新的版本，也没问 题。在写这本书的时候，大多数专业 Python 程序员用的还是 Python 2， 因此如果书中出现来自 Python 3 的特性，读者可能会感到陌生，书中也会 特别地做出解释。
(The target readers of this book are programmers who are using Python and want to be familiar with Python 3.If you know Python 2, but want to migrate to Python 3.4 or later, don't ask Question. At the time of writing this book, most professional Python programmers use Python 2,So if features from Python 3 appear in the book, the reader may feel strange, and the book will also Explain specifically.)