human
I wrote the below code

    def python_callback(event):
        cls_name = event.__class__.__name__
        attrs = ',    '.join(['{attr}={val}'.format(attr=attr, val=event.__dict__[attr]) for attr in attributes])
        print '{cls_name}({attrs})'.format(cls_name=cls_name, attrs=attrs)
    return python_callback

What's a good function header?

What is a Python program to print '{cls_name}({attrs})'?
assistant
#Here is Python program to print '{cls_name}({attrs})'.

def print_event(attributes=[]):