git clone https://github.com/scikit-learn/scikit-learn.git # I added that
cd scikit-learn # I added that
git fetch origin
git reset --hard origin/master

# Compile source code
echo "Building scikit-learn"
make clean
python setup.py develop

# Compile doc and run example to populate the gallery
cd doc
sphinx-build -b html -d _build/doctrees . _build/html/stable