pickle.load()读取出错

问题遇到的现象和发生背景

我用pickle.load()读取pkl文件时出现了错误显示
object.new(BlockManager) is not safe, use BlockManager.new()

问题相关代码，请勿粘贴截图

output = open('get_stock_price.pkl', 'rb')
get_stock_price = pickle.load(output)


```)

###### 运行结果及报错内容 

![img](https://img-mid.csdnimg.cn/release/static/image/mid/ask/79547583864610.png "#left")

```python

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/var/folders/b2/mb61jycx1cj1py_69sf14qqm0000gn/T/ipykernel_1428/1963887105.py in <module>
      1 output = open('get_stock_price.pkl', 'rb')
----> 2 get_stock_price = pickle.load(output)

~/anaconda/anaconda3/lib/python3.9/copyreg.py in _reconstructor(cls, base, state)
     41 def _reconstructor(cls, base, state):
     42     if base is object:
---> 43         obj = object.__new__(cls)
     44     else:
     45         obj = base.__new__(cls, state)

TypeError: object.__new__(BlockManager) is not safe, use BlockManager.__new__()

import pickle

我的解答思路和尝试过的方法

尝试改变语句，还是没有用，一样的报错

with open("get_stock_price.pkl",'rb') as f:
    content = pickle.load(f,encoding='iso-8859-1')
print(content)

尝试将文件copyreg中的obj = object.new(cls)改成obj = cls.new()也没有用

我想要达到的结果

希望能够读取pkl中的数据QAQ

github也有人出现相同异常，参考一下解决方案：
https://github.com/bobeobibo/phigaro/issues/33

不能直接用read读？一定要pickle.load()？

同疑惑，我也是报错了～