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

GodModeaa

C#的WindowsForm 该怎么上手？求教！

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