PYTHON

python copy

org_list = [1, 2, 3, 4, 5, 6, 7, 8, 9]
new_list = org_list.copy()

# For lists in lists you need deepcopy()

import copy

org_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
new_list = copy.deepcopy(org_list)
 

copy python

import copy

l = [0, 1, [2, 3]]
l_assign = l                   # assignment
l_copy = l.copy()              # shallow copy
l_deepcopy = copy.deepcopy(l)  # deep copy

l[1] = 100
l[2][0] = 200
print(l)
# [0, 100, [200, 3]]

print(l_assign)
# [0, 100, [200, 3]]

print(l_copy)
# [0, 1, [200, 3]]

print(l_deepcopy)
# [0, 1, [2, 3]]