ImportError: No module named model_selection

Question

I am trying to use train_test_split function and write:

from sklearn.model_selection import train_test_split

and this causes

Answer 1

To install scikit-learn version 18.0, I used both commands:

conda update scikit-learn

pip install -U scikit-learn

But it does not work. There was a problem "Cannot install 'scikit-learn'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall".

Finally, i can install it by using following command:

pip install --user --upgrade scikit-learn==0.18.0