sklearn current version code example
Example 1: conda install scikit-learn
conda install -c anaconda scikit-learn
Example 2: pip install sklearn specific version
pip uninstall scikit-learn
pip install scikit-learn==0.18.2
Example 3: how to know the version of sklearn
conda list scikit
scikit-learn 0.22.1 py37h6288b17_0
Example 4: sklearn version
import nltk
import sklearn
print('The nltk version is {}.'.format(nltk.__version__))
print('The scikit-learn version is {}.'.format(sklearn.__version__))