Answer by Laurent Lyaudet for List changes unexpectedly after assignment. Why is this and how to prevent it?

There is another way of copying a list that was not listed until now : adding an empty list : l2 = l + [].I tested it with Python 3.8 :

l = [1,2,3]l2 = l + []print(l,l2)l[0] = 'a'print(l,l2)

Not the best answer but it works.