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General Remarks: 3.X Changes

Although the Python 3.X line covered in the two most recent editions of this book is largely the same language as its 2.X predecessor, it differs in some crucial ways. As discussed in the preface and summarized in the preceding section, 3.X’s nonoptional Unicode model, mandatory new-style classes, and broader emphasis on generators and other functional tools alone can make it a materially different experience.

On the whole, Python 3.X may be a cleaner language, but it is also in many ways a more sophisticated lang...


Cover of Learning Python, 5th Edition


General Remarks: Python 3.X Changes