demo_list_copy_3.py

#!/usr/bin/python3
# ===================================================================
#
# ===================================================================

import copy

print('\n---- original')
list1 = [[0,1],2,3,4,5]
print(f'list1       id = {id(list1)}  list={list1}') 
print(f'list1[0][0] id = {id(list1[0][0])}')

print('\n---- copy')
list2 = copy.copy(list1)
print('---- modify element [0][0]')
list2[0][0] = 'A'
print(f'list2       id = {id(list2)}  list={list2}')
print(f'list2[0][0] id = {id(list2[0][0])}')
print(f'list1       id = {id(list1)}  list={list1}')
print(f'list1[0][0] id = {id(list1[0][0])}')

print('\n---- deepcopy')
list3 = copy.deepcopy(list1)
print('---- modify element [0][0]')
list3[0][0] = 'B'
print(f'list3       id = {id(list3)}  list={list3}')
print(f'list3[0][0] id = {id(list3[0][0])}')
print(f'list1       id = {id(list1)}  list={list1}')
print(f'list1[0][0] id = {id(list1[0][0])}')