unpack.py

"""
$ python3 -m dis unpack.py

 ...

 21          12 BUILD_LIST               0
             14 LOAD_NAME                1 (numbers)
             16 LIST_EXTEND              1
             18 STORE_NAME               2 (copy1)

 23          20 LOAD_NAME                3 (list)
             22 LOAD_NAME                1 (numbers)
             24 CALL_FUNCTION            1
             26 STORE_NAME               4 (copy2)
             28 LOAD_CONST               2 (None)
             30 RETURN_VALUE

"""
numbers = [2, 1, 3, 4, 7, 11, 18]

copy1 = [*numbers]

copy2 = list(numbers)