Python AttributeError：“列表”对象没有属性“复制”

大家，早安。

我是Python的新手，应该说“我在学习这种语言时很开心”

我只是被这个复制功能卡住了

friends = ["kevin", "karen", "jim", "jim", "jim", "oscar", "toby"]
friends = friends.copy()
print(friends)

上面的命令将引发错误

    friends2 = friends.copy()
    AttributeError: 'list' object has no attribute 'copy'

I use Python 3.x and before posting this message I read few suggestions which pop up when I enter the title. I found a StackOverflow article wrote by @Shemogumbe The list.copy method does not work both in python 2.x and python 3.x

Also, it looked into Pythons Offical documentation on copy function

it also says use copied_list = original_list[:] when I use this my VScode compiles without any error.

Hence my question is should I use friends2 = friends.copy() or friends2 = friends[:] and WHY

非常感谢每个可以帮助我的人。