July 2010
Beginner to intermediate
404 pages
10h 6m
English
Content preview from Python 3 Object Oriented Programming
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Template pattern
The template pattern is useful for removing duplicate code; it's an implementation to support the "Don't Repeat Yourself" principle we discussed in Chapter 5. It is designed for situations where we have several different tasks to accomplish that have some, but not all, steps in common. The common steps are implemented in a base class, and the different steps are overridden in subclasses to provide custom behavior. In some ways, it's like a generalized strategy pattern, except similar sections of the algorithms are shared using a base class. Here it is in UML format:
Template example
Let's create a car sales reporter as an example. ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.