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Major 2.X/3.X Differences

Much of this appendix relates Python changes to book coverage. If you’re instead looking for a quick summary of the most prominent 2.X/3.X distinctions, the following may suffice. Note that this section primarily compares the latest 3.X and 2.X releases—3.3 and 2.7. Many 3.X features are not listed here because they were either also added to 2.6 (e.g., the with statement and class decorators), or back-ported later to 2.7 (e.g., set and dictionary comprehensions), but are not available in earlier 2.X releases. See later sections for more fine-grained information...


Cover of Learning Python, 5th Edition


Major Python 2.X/3.X Differences for Programmers