can I multiply?

Question

can I multiply

nums = [1, 2, 3]
print(nums + [4, 5, 6])

result:[1,2,3,4,5,6]

print(nums * [4,5,6])

result:?

Answer 1

You can't multiply a list times a list like that. You can multiply a list times an integer. That list will be repeated n times into a new list.

Answer 2

Why Don't you use code playground to see the output?

Answer 3

class List(list):
def __mul__(self, other):
if (type(other) is int):
return super().__mul__(other)
return [x*y for x, y in zip(self, other)]

arr_1 = List([1, 2, 3, 4])
arr_2 = List([10, 20, 30, 40, 50])

print(arr_1*arr_2) # [10, 40, 90, 160]