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    <p><strong>Decorator Pattern</strong> - In object-oriented programming, the decorator pattern is a design pattern that allows behaviour to be added to an existing object dynamically. The decorator pattern can be used to extend (decorate) the functionality of a certain object at run-time, independently of other instances of the same class, provided some groundwork is done at design time.</p> <p><strong>Decorators in Python</strong> - Despite the name, Python decorators are not an implementation of the decorator pattern. The decorator pattern is a design pattern used in statically typed object-oriented programming languages to allow functionality to be added to objects at run time; Python decorators add functionality to functions and methods at definition time, and thus are a higher-level construct than decorator-pattern classes.</p> <p>The decorator pattern itself is trivially implementable in Python, because the language is duck typed, and so is not usually considered as such. So in Python a decorator is any callable Python object that is used to modify a function, method or class definition.</p> <p>I hope I made the difference clear. Just in case you did not completely understand, please go through these links. You will come out more than clear at the end of it -</p> <ul> <li><p><em><a href="https://stackoverflow.com/questions/739654/understanding-python-decorators">How to make a chain of function decorators?</a></em></p></li> <li><p><em><a href="https://stackoverflow.com/questions/3118929/implementing-the-decorator-pattern-in-python">Implementing the decorator pattern in Python</a></em></p></li> <li><p><em><a href="https://stackoverflow.com/questions/4229287/what-is-the-difference-between-using-decorators-and-extending-a-sub-class-by-inh">What is the difference between using decorators and extending a sub class by inheritance?</a></em></p></li> <li><p><em><a href="https://stackoverflow.com/questions/681953/python-class-decorator">Python Class Decorator</a></em></p></li> <li><p><em><a href="http://wiki.python.org/moin/PythonDecorators" rel="nofollow noreferrer">PyWiki - Python Decorators - A detailed discourse</a></em></p></li> <li><p><em><a href="http://www.ibm.com/developerworks/linux/library/l-cpdecor/index.html" rel="nofollow noreferrer">Python Decorators Made Easy</a></em></p></li> <li><p><em><a href="http://en.wikipedia.org/wiki/Decorator_pattern" rel="nofollow noreferrer">Source 1</a> &amp; <a href="http://en.wikipedia.org/wiki/Python_syntax_and_semantics#Decorators" rel="nofollow noreferrer">source 2</a></em></p></li> </ul>
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    1. POWhat is the difference between Python decorators and the decorator pattern?
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    1. USPeter Mortensen
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    1. COYou may want to look at edited question.
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