运行结果永远是type error，为啥呀

# Enter a code

def func(x):

    if not isinstance(x,list) or not isinstance(x,tuple):

        print('type error')

        return None

    if isinstance(x,list):

        s = 0

        for y in x:

            if isinstance(y,int) or isinstance(y,float):

                s = s + y

        print(s)

        return s 

    if isinstance(x,tuple):

        s = 1

        for y in x:

            if isinstance(y,int) or isinstance(y,float):

                s = s * y

        print(s)

        return s 

L1 = [1,2,3,4,5,6,7,8,9,10]

L2 = (1,2,3,4,5,6,7,8,9,10)

L3 = 'kkk'

func(L1)