python clone object
import copy
new_ob = copy.deepcopy(old_ob)python clone object
import copy
new_ob = copy.deepcopy(old_ob)example of a deep copy in python
# deep copy example in python
import copy
old_list = [[1, 1, 1], [2, 2, 2], [3, 3, 3]]
new_list = copy.deepcopy(old_list)
old_list[1][0] = 'BB'
print("Old list:", old_list)
print("New list:", new_list)
# OUTPUT
Old list: [[1, 1, 1], ['BB', 2, 2], [3, 3, 3]]
New list: [[1, 1, 1], [2, 2, 2], [3, 3, 3]]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
# 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()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)Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
