December 2000
Intermediate to advanced
816 pages
16h 57m
English
Content preview from Core Python Programming
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13.5. Instances
Whereas a class is a data structure definition type, an instance is a declaration of a variable of that type. In other words, instances are classes brought to life. Once a blueprint is provided, the next step to bring them to fruition. Instances are the objects which are used primarily during execution, and all instances are of type “instance.”
13.5.1. Instantiation: Creating Instances by Invoking Class Object
Most other OO languages provide a new keyword with which to create an instance of a class. Python's approach is much simpler. Once a class has been defined, creating an instance is no more difficult that calling a function—literally. Instantiation is realized with use of the function operator, as in the following example: ...
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