装饰器调用错误

Decorator

def decorator(func):
    def new_function(*args, **kwargs):  # New function defined
        """ Actions before 'func' called """
        value = func(*args, **kwargs)   # Call `func` and keep the result
        """ Action after 'func' called """
        return value                    # Return the result
    return new_function                 # Return the new function

Last line in your decorator function, it should return the new function, but it execute the function without any arguments.

return inner()

Should be

return inner