What's the defference between these codes that makes different outputs?

Question

_In this python code:
A=[[0]*8]*8
_and this other one:
A=[]
for h in range(8):
b=[]
for i in range(8):
b.append(0)
A.append(b)
_what's the difference, that if I change something ( for example A[1][5]=6 ) , I'll have different outputs.

Answer 1

I think that in the first option you will get simply an arrey of 64 ints.
In the second option the A.append(b) will create a list item from type arrey...and nit and not an Int. (a list within a list)