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DevX: Dig Deep into Python Internals, Part 2

Jun 02, 2006, 08:30 (0 Talkback[s])
(Other stories by Gigi Sayfan)


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"This article is the second in a two-part series that digs deep to explore the fascinating new-style Python object model, which was introduced in Python 2.2 and improved in 2.3 and 2.4. The object model and type system are very dynamic and allow quite a few interesting tricks. In part one I described the object model and type system, explored various entities, explained the life cycle of an object, and introduced some of the countless ways to modify and customize almost everything you thought immutable at runtime. In this article I will contrast meta-classes with decorators, explore the Python execution model and explain how to examine stack frames at runtime. Finally, I will demonstrate how to augment the Python language itself using these techniques. To do this I introduce a private access-checking feature that can be enforced at runtime..."

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