ImportError: No module named 'sklearn.__check_build._check_build'
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Contents of C:\Python 3.8\Lib\site-packages\sklearn\__check_build:
setup.py _check_build.cp38-win_amd64.pyd__init__.py
__pycache__
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It seems that scikit-learn has not been built correctly.
If you have installed scikit-learn from source, please do not forget
to build the package before using it: run `python setup.py install` or
`make` in the source directory.
If you have used an installer, please check that it is suited for your
Python version, your operating system and your platform.
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What need to be done to solve this error