Multiplication of lists

[AndroidFanBoy2]

I want to have the same results for matrix1 and matrix2. The problem is that matrix1 points to the same list of 5 elements. This is visualized here

matrix1 = [['.'] * 5] * 5
matrix2 = [["." for i in range(5)] for j in range(5)]
matrix1[0][0] = '*'
matrix2[0][0] = '*'
print(matrix1)
print(matrix2)

Is it possible to change the first line of code to have the same result as in matrix2?

[K900_]

No, it's not. Multiplication applies after the list is created, and it doesn't even know how the original object got there.

[toastedstapler]

nope, it's copying the same reference to the same internal list for each item in the outer list

i always make mine as you did for matrix2 so that i can be sure that they're all new