Appendix A Recent Python Changes

This appendix summarizes prominent changes introduced in Python releases since the first edition of this book. It is divided into three sections, mostly because the sections on 1.6 and 2.0 changes were adapted from release note documents:

  • Changes introduced in Python 2.0 (and 2.1)
  • Changes introduced in Python 1.6
  • Changes between the first edition and Python 1.5.2

Python 1.3 was the most recent release when the first edition was published (October 1996), and Python 1.6 and 2.0 were released just before this second edition was finished. 1.6 was the last release posted by CNRI, and 2.0 was released from BeOpen (Guidos two employers prior to his move to Digital Creations); 2.0 adds a handful of features to 1.6.

With a few notable exceptions, the changes over the last five years have introduced new features to Python, but have not changed it in incompatible ways. Many of the new features are widely useful (e.g., module packages), but some seem to address the whims of Python gurus (e.g., list comprehensions) and can be safely ignored by anyone else. In any event, although it is important to keep in touch with Python evolution, you should not take this appendix too seriously. Frankly, application library and tool usage is much more important in practice than obscure language additions.

For information on the Python changes that will surely occur after this editions publication, consult either the resources I maintain at this books web site (http://rmi.net/~lutz/about-pp.html), the resources available at Pythons web site (http://www.python.org ), or the release notes that accompany Python releases.


Introducing Python

Part I: System Interfaces

System Tools

Parallel System Tools

Larger System Examples I

Larger System Examples II

Part II: GUI Programming

Graphical User Interfaces

A Tkinter Tour, Part 1

A Tkinter Tour, Part 2

Larger GUI Examples

Part III: Internet Scripting

Network Scripting

Client-Side Scripting

Server-Side Scripting

Larger Web Site Examples I

Larger Web Site Examples II

Advanced Internet Topics

Part IV: Assorted Topics

Databases and Persistence

Data Structures

Text and Language

Part V: Integration

Extending Python

Embedding Python

VI: The End

Conclusion Python and the Development Cycle

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Programming Python
Python Programming for the Absolute Beginner, 3rd Edition
ISBN: 1435455002
EAN: 2147483647
Year: 2000
Pages: 245
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