Decorators Example #python #decorator

Decorators Example

# Decorators using the @ symbol ##########

def double_args(func):
    def wrapper(a, b):
        return func(a * 2, b * 2) # Modify input arguments before passing to requested function
    return wrapper

@double_args # This is to indicate the decorators is used on the multiple function
def multiple(a, b):
    return a * b

if __name__ == '__main__':
    m = multiple(1, 5) # No need to call double_args to wrap the multiple method as the @ declaration already done that
    print(m)

    ##########
    # 20 (Answers is 20 because warpper * 2 al arguements before calling the multply method)
    ##########