改组对象列表 - Shuffling a list of objects

问题：

I have a list of objects and I want to shuffle them. 我有一个对象列表，我想对其进行洗牌。 I thought I could use the random.shuffle method, but this seems to fail when the list is of objects. 我觉得可使用random.shuffle方法，可是当列表中包含对象时，这彷佛失败了。 Is there a method for shuffling objects or another way around this? 是否有一种用于改组对象的方法或解决此问题的另外一种方法？

import random

class A:
    foo = "bar"

a1 = a()
a2 = a()
b = [a1, a2]

print(random.shuffle(b))

This will fail. 这将失败。

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解决方案：

参考一： https://stackoom.com/question/468A/改组对象列表
参考二： https://oldbug.net/q/468A/Shuffling-a-list-of-objects