@func call syntax

[teekaysoh at gmail.com]

Hi,

I am new to Python, here I'd like to have a question: I noticed a
special way to call a function in a program:

    @function_name

No argv is passed, even though the function_name asks for one. Any idea
what this @something syntax is trying to achieve. I haven't been able
to find any answer of on the google web and groups.

TIA.