python clone object
import copy
new_ob = copy.deepcopy(old_ob)python clone object
import copy
new_ob = copy.deepcopy(old_ob)Python Deep Copy
import copy
l1 = [1,3,[9,4],6,8]
l2 = copy.copy(l1) #Making a shallow copy
print('List 1 = ', l1)
print('List 2 = ', l2)
print('Performing change in list 2')
l2[2][0] = 5
print('List 1 = ',l1)
print('List 2 = ',l2)Python Deep Copy
import copy
l1=[1,3,[9,4],6,8]
l2=copy.deepcopy(l1) #Making a deep copy
print('List 1 = ', l1)
print('List 2 = ', l2)
print('Performing change in list 2')
l2[2][0] = 5
print('List 1 = ',l1)
print('List 2 = ',l2)example of deep copy in python
old_list = [[1, 2, 3], [4, 5, 6], [7, 8, 'a']]
new_list = old_list
new_list[2][2] = 9
print('Old List:', old_list)
print('ID of Old List:', id(old_list))
print('New List:', new_list)
print('ID of New List:', id(new_list))python deep copy
# explaining why we need deepcopy
x = [0,1]
y = x
x.append(2)
print(x)
print(y)
# result: [0, 1, 2]
# result: [0, 1, 2]
import copy
some_list = [[0, 0, 0], [1, 1, 1], [2, 2, 2]]
other_list = copy.copy(some_list)
some_list.append([3, 3, 3])
print(some_list)
print(other_list)
# result: [0, 0, 0], [1, 1, 1], [2, 2, 2], [3, 3, 3]]
# result: [0, 0, 0], [1, 1, 1], [2, 2, 2]]
del some_list[2]
some_list[1][0] = 'One'
print(some_list)
print(other_list)
# result: [0, 0, 0], ['One', 1, 1], [2, 2, 2]]
# result: [0, 0, 0], ['One', 1, 1], [2, 2, 2]]
#this problem doesn't happen with copy.deepcopy()Copyright © 2021 Codeinu
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