punga.py

def mouse_change(func):
    def add_mouse_change(*args):
        print('mouse wait')
        func(*args)
        print('mouse normal')
    return add_mouse_change

@mouse_change
def monkey_business(a, b, c):
    print('a={0}, b={1}, c={2}'.format(a, b, b))


monkey_business(10, 20, 30)