Why the original list is also getting sorted in Python?

Asked Jun 29 '23 at 06:20

Active Jun 29 '23 at 06:21

Viewed 27 times

Python Version used: Python 3.11.3

Code :

original_list= [4, 2, 0, 3, 1]

duplicate_list=original_list
duplicate_list.sort()

print(original_list)

Output :

[0, 1, 2, 3, 4]

When I sort the duplicate_list using the sort() method, why the original_list is also getting sorted ?

I was expecting that the original list should not be affected.

Also when I use the sorted() function the original_list does NOT gets affected.

edited Jun 29 '23 at 06:21

asked Jun 29 '23 at 06:20

Raman Kumar

try this `duplicate_list=original_list[:]` – dimay Jun 29 '23 at 06:22
1

because you have two lists pointing to the same memory locations – Sembei Norimaki Jun 29 '23 at 06:37
1

Reminder: `=` never copies data. – Matthias Jun 29 '23 at 06:52

0 Answers0