Facing issue with Creadit Card problem

Question

Card_Num = input()
Card_Num_List = list(Card_Num)
Card_Num_List.reverse()

for j in range(len(Card_Num_List)) :
Card_Num_List[j] = int(Card_Num_List[j])

sum = 0
for j in range (len(Card_Num_List )) :
if j % 2 == 1:
Card_Num_List[j] = Card_Num_List[j]*2
if Card_Num_List[j] > 9:
Card_Num_List[j] -= 9
sum = sum + Card_Num_List[j]

if sum % 10 == 0:
print("valid")
else :
print ("not valid")

I am using the python code to solve a Creadit Card problem of solo learn and still last two tests are not satisfied

Answer 1

Mayank Joshi along with the above validations the card also needs 16 digit. So therefore you need to check length of the cards.

Answer 2

Thank Aysha