Problem with using remove, pop, del on list in Python

Question

a = [10, 12, 14]
b = a
b.remove(12) 
print(a)
print(b)

Result is:

[10, 14]
[10, 14]

The result is same when I use pop, del function

It is also same when I delete from a (a.remove, a.pop, del a)

What I want is (like disconnection):

[10, 12, 14]
[10, 14]

It seems like remove function deletes the element in the original list too

`a` and `b` are both references to the same list. See [Facts and myths about Python names and values](https://nedbatchelder.com/text/names.html) — Patrick Haugh, Oct 02 '18 at 03:53

score 0 · Accepted Answer · answered Oct 02 '18 at 03:54

0

What you want is to reference a copy of a with b, not the same list, so just copy it:

from copy import copy
a = [10, 12, 14]
b = copy(a)
b.remove(12) 
print(a)
print(b)

[10, 12, 14]
[10, 14]

Here you have the live example

answered Oct 02 '18 at 03:54

Netwave

1 Answers1