from sklearn.naive_bayes import CategoricalNB
报错信息：
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-7-99f84f9c107a> in <module>()
1 #建立模型，引入模型
----> 2 from sklearn.naive_bayes import CategoricalNB
~\AppData\Roaming\Python\Python36\site-packages\sklearn\__init__.py in <module>()
80 from . import _distributor_init # noqa: F401
81 from . import __check_build # noqa: F401
---> 82 from .base import clone
83 from .utils._show_versions import show_versions
84
~\AppData\Roaming\Python\Python36\site-packages\sklearn\base.py in <module>()
15 from . import __version__
16 from ._config import get_config
---> 17 from .utils import _IS_32BIT
18 from .utils._tags import (
19 _DEFAULT_TAGS,
~\AppData\Roaming\Python\Python36\site-packages\sklearn\utils\__init__.py in <module>()
21
22 from .murmurhash import murmurhash3_32
---> 23 from .class_weight import compute_class_weight, compute_sample_weight
24 from . import _joblib
25 from ..exceptions import DataConversionWarning
~\AppData\Roaming\Python\Python36\site-packages\sklearn\utils\class_weight.py in <module>()
5 import numpy as np
6
----> 7 from .validation import _deprecate_positional_args
8
9
~\AppData\Roaming\Python\Python36\site-packages\sklearn\utils\validation.py in <module>()
24 from contextlib import suppress
25
---> 26 from .fixes import _object_dtype_isnan, parse_version
27 from .. import get_config as _get_config
28 from ..exceptions import PositiveSpectrumWarning
~\AppData\Roaming\Python\Python36\site-packages\sklearn\utils\fixes.py in <module>()
18 import scipy.sparse as sp
19 import scipy
---> 20 import scipy.stats
21 from scipy.sparse.linalg import lsqr as sparse_lsqr # noqa
22 from numpy.ma import MaskedArray as _MaskedArray # TODO: remove in 1.0
~\anaconda3\envs\imooc\lib\site-packages\scipy\stats\__init__.py in <module>()
346 from __future__ import division, print_function, absolute_import
347
--> 348 from .stats import *
349 from .distributions import *
350 from .morestats import *
~\anaconda3\envs\imooc\lib\site-packages\scipy\stats\stats.py in <module>()
175 import scipy.special as special
176 import scipy.linalg as linalg
--> 177 from . import distributions
178 from . import mstats_basic
179 from ._distn_infrastructure import _lazywhere
~\anaconda3\envs\imooc\lib\site-packages\scipy\stats\distributions.py in <module>()
11 rv_frozen)
12
---> 13 from . import _continuous_distns
14 from . import _discrete_distns
15
~\anaconda3\envs\imooc\lib\site-packages\scipy\stats\_continuous_distns.py in <module>()
13 from scipy import integrate
14 import scipy.special as sc
---> 15 from scipy._lib._numpy_compat import broadcast_to
16
17 from . import _stats
~\anaconda3\envs\imooc\lib\site-packages\scipy\_lib\_numpy_compat.py in <module>()
8
9 import numpy as np
---> 10 from numpy.testing.nosetester import import_nose
11
12 from scipy._lib._version import NumpyVersion
ModuleNotFoundError: No module named 'numpy.testing.nosetester'
自己网上查过解决方案，好像说需要升级pip，numpy，sklearn的版本，但升级后还是报错。
附上各环境包版本号
# Name Version Build Channel
argon2-cffi 20.1.0 pypi_0 pypi
blas 1.0 mkl https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
bleach 1.5.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
certifi 2016.2.28 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
cffi 1.14.5 pypi_0 pypi
colorama 0.3.9 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
cycler 0.10.0 pypi_0 pypi
decorator 4.1.2 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
entrypoints 0.2.3 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
html5lib 0.9999999 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
ipykernel 4.6.1 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
ipython 6.1.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
ipython_genutils 0.2.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
jedi 0.10.2 py36_2 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
jinja2 2.9.6 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
joblib 1.0.1 pypi_0 pypi
jsonschema 2.6.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
jupyter-client 6.1.11 pypi_0 pypi
jupyter-core 4.7.1 pypi_0 pypi
jupyter_client 5.1.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
jupyter_core 4.3.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
jupyterthemes 0.20.0 pypi_0 pypi
kiwisolver 1.3.1 pypi_0 pypi
lesscpy 0.14.0 pypi_0 pypi
markupsafe 1.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
matplotlib 3.3.4 pypi_0 pypi
mistune 0.7.4 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
mkl 2017.0.3 0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
mpmath 1.2.1 pypi_0 pypi
nbconvert 5.2.1 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
nbformat 4.4.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
notebook 6.2.0 pypi_0 pypi
numpy 1.19.5 pypi_0 pypi
pandas 0.20.3 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pandocfilters 1.4.2 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
path.py 10.3.1 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pickleshare 0.7.4 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pillow 8.1.0 pypi_0 pypi
pip 21.0.1 pypi_0 pypi
ply 3.11 pypi_0 pypi
prometheus-client 0.9.0 pypi_0 pypi
prompt_toolkit 1.0.15 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pycparser 2.20 pypi_0 pypi
pygments 2.2.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pyparsing 2.4.7 pypi_0 pypi
python 3.6.2 0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
python-dateutil 2.6.1 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pytz 2017.2 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
pywin32 300 pypi_0 pypi
pywinpty 0.5.7 pypi_0 pypi
pyzmq 22.0.3 pypi_0 pypi
scikit-learn 0.19.0 np113py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
scipy 1.5.4 pypi_0 pypi
send2trash 1.5.0 pypi_0 pypi
setuptools 36.4.0 py36_1 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
simplegeneric 0.8.1 py36_1 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
six 1.10.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
sklearn 0.0 pypi_0 pypi
sympy 1.7.1 pypi_0 pypi
terminado 0.9.2 pypi_0 pypi
testpath 0.3.1 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
threadpoolctl 2.1.0 pypi_0 pypi
tornado 6.1 pypi_0 pypi
traitlets 4.3.2 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
vc 14 0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
vs2015_runtime 14.0.25420 0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
wcwidth 0.1.7 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
wheel 0.29.0 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
wincertstore 0.2 py36_0 https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
