def tester func None args kwargs def decorator args kwargs print func

def tester(func=None, *args, **kwargs):
        def decorator(*args, **kwargs):
                print func(*args, **kwargs)
        if callable(func):
                return decorator
        else:
                def wrapper(func):
                        def decorator(*args, **kwargs):
                                print func(*args, **kwargs)
                        return decorator
                return wrapper