python - How to make a copy of a list of objects not change when modifying the original list? -

possible duplicates: how clone list in python? what best way re-create list in python?

original_list = [object1(), object2(), object3()] copy_list = original_list original_list.pop()

if remove object original list, how can maintain re-create list changing well?

original list

[<object.object instance @ 0x00ea29e0>, <object.object instance @ 0x00ea2dc8>, <object.object instance @ 0x00ea2ee0>]

copy list after popping original list (i want equal above)

[<object.object instance @ 0x00ea29e0>, <object.object instance @ 0x00ea2dc8>]

use copy.deepcopy() deep copy:

import re-create copy_list = copy.deepcopy(original_list)

for shallow re-create utilize copy.copy():

import re-create copy_list = copy.copy(original_list)

or piece no endpoints specified :

copy_list = original_list[:]

see copy docs explanation deep & shallow copies.

python list object

JC