How do I install sklearn in Python?

The standard way to install sklearn is by running `python -m pip install scikit-learn`. If you are using Anaconda, use `conda install -c conda-forge scikit-learn`.

Why causes the 'No module named sklearn' error?

This error occurs when the python interpreter cannot locate the `sklearn` package. It is often caused by missing installation or environment mismatch (e.g. installing in global but running in venv).

How to fix ModuleNotFoundError: No module named 'sklearn'

ModuleNotFoundError: No module named 'sklearn'

For data science projects, we strongly recommend using Conda to manage binary dependencies.

conda install -c conda-forge scikit-learn

Verification

Command

python -c "import sklearn; print(sklearn.__version__)"

Expected output

Success! sklearn version x.y.z (e.g., 2.4.0)