scikit-learn dependencies code example

Example 1: sklearn version

import nltk
import sklearn

print('The nltk version is {}.'.format(nltk.__version__))
print('The scikit-learn version is {}.'.format(sklearn.__version__))

# The nltk version is 3.0.0.
# The scikit-learn version is 0.15.2.

Example 2: how to update sklearn

conda config --append channels conda-forge
conda install scikit-learn=0.19.2