oduleNotFoundError: No module named 'sklearn' code example

Example 1: No module named 'sklearn'

pip install scikit-learn

Example 2: ModuleNotFoundError: No module named 'sklearn.cross_validation'

Substitute cross_validation to model_selection

Example 3: ModuleNotFoundError: No module named 'sklearn'

#for python 1
pip install -U scikit-learn scipy matplotlib
#for python 3
pip3 install -U scikit-learn scipy matplotlib

Example 4: ModuleNotFoundError: No module named 'sklearn.cross_validation'

ImportError: No module named sklearn.cross_validation