Scikit learn pickle.load（）-TypeError:需要一个整数（获取类型字节）

加载

.pkl

文件时，使用

pickle.load（）

引发

TypeError

。实际上，以前它是一个使用

python3.7

的工作文件，但现在我使用的是

python3.8.9

Python 3.8.9
cloudpickle==1.6.0
scikit-learn==0.20.2

片段-

import pickle


with open('some_model.pkl', "rb") as f:
    pickle.load(f, **{"encoding": "latin1"})

例外情况-

Traceback (most recent call last):
  File "/home/phenix/common_utils.py", line 66, in <module>
    pickle.load(f, **{"encoding": "latin1"})
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/__init__.py", line 64, in <module>
    from .base import clone
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/base.py", line 13, in <module>
    from .utils.fixes import signature
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/utils/__init__.py", line 14, in <module>
    from . import _joblib
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/utils/_joblib.py", line 22, in <module>
    from ..externals import joblib
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/__init__.py", line 119, in <module>
    from .parallel import Parallel
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/parallel.py", line 28, in <module>
    from ._parallel_backends import (FallbackToBackend, MultiprocessingBackend,
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/_parallel_backends.py", line 22, in <module>
    from .executor import get_memmapping_executor
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/executor.py", line 14, in <module>
    from .externals.loky.reusable_executor import get_reusable_executor
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/loky/__init__.py", line 12, in <module>
    from .backend.reduction import set_loky_pickler
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/loky/backend/reduction.py", line 125, in <module>
    from sklearn.externals.joblib.externals import cloudpickle  # noqa: F401
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/__init__.py", line 3, in <module>
    from .cloudpickle import *
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py", line 167, in <module>
    _cell_set_template_code = _make_cell_set_template_code()
  File "/home/phenix/venv/lib/python3.8/site-packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py", line 148, in _make_cell_set_template_code
    return types.CodeType(
TypeError: an integer is required (got type bytes)

回溯（最近一次呼叫最后一次）：
文件“/home/phenix/common_utils.py”，第66行，在
pickle.load（f，**{“编码”：“latin1”}）
文件“/home/phenix/venv/lib/python3.8/site-packages/sklearn/__-init__.py”，第64行，在
从.base导入克隆
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/base.py”，第13行，在
from.utils.fixes导入签名
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/utils/__init__.py”，第14行，在
从…起导入作业库
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/utils/_joblib.py”，第22行，在
从..外部导入作业库
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/_init__.py”，第119行，在
平行进口平行进口
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/parallel.py”，第28行，在
from.\u parallel\u后端导入（FallbackToBackend，多处理后端，
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/_parallel_backends.py”，第22行，在
from.executor导入get_memmapping_executor
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/executor.py”，第14行，在
from.externals.loky.reusables\u executor导入get\u reusables\u executor
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/externals/loky/_init__.py”，第12行
from.backend.reduce导入集\u loky\u pickler
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/externals/loky/backend/reduce.py”，第125行，在
从sklearn.externals.joblib.externals导入cloudpickle#noqa:F401
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/externals/cloudpickle/_init__.py”，第3行，在
从.cloudpickle进口*
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py”，第167行，在
_单元设置模板代码=\u生成单元设置模板代码（）
文件“/home/phenix/venv/lib/python3.8/site packages/sklearn/externals/joblib/externals/cloudpickle/cloudpickle.py”，第148行，位于“生成单元集模板”代码中
返回类型.代码类型(
TypeError:需要整数（获取类型字节）