They're called "decorators", and here's a pretty good overview:

http://www.artima.com/weblogs/viewpost.jsp?thread=240808

Here's the definition of classmethod:
http://docs.python.org/library/functions.html#classmethod

and staticmethod:
http://docs.python.org/library/functions.html#staticmethod

On Fri, Mar 12, 2010 at 3:59 AM, B <[email protected]> wrote:
> Why are these used prior to defining a method for a model?
>
> @classmethod
> @staticmethod
>
> What is the difference between them? Are there others I should be
> aware of?
> Must I use them?
>
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