ModuleNotFoundError: No module named ‘sklearn.model_selection’; ‘sklearn’ is not a package

  python, scikit-learn

I have been dealing with this much too long. I am using a MacBook Pro. This suddenly started happening when running Jupyter. I could not fix it. I completely uninstalled anaconda (which was using Python3.8) then completely uninstalled Python3.9. I installed Python3.96. Then went back to basics and reinstalled numpy, pandas, sklearn. Everything seems to be there in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages

This command fails in Idle and gives the error in the title of my question.

from sklearn.model_selection import train_test_split

It does not give the error in Mac’s Terminal

The search path for Idle looks correct.

Source: Python Questions

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