python lines that start with @

Question

Possible Duplicate:
Understanding Python decorators

I was reading a django app source code where I find this

@login_required
def activities(request = None,\
            project_id = 0,\
            task_id = 0,\
            ...

What does the line that start with @ mean?

Answer 1

Please check out Python Decorators Explained. It has an amazing answer that will explain everything.