if [[ $USE_OPTIONAL != "true" && $USE_OPTIONAL != "false" ]]; then

echo "fatal: \$USE_OPTIONAL not set to true or false. Exiting."

exit 1

pip install -r requirements-test.txt

if [[ $USE_OPTIONAL == "true" && $TRAVIS_PYTHON_VERSION != "pypy" ]]; then

if [[ $TRAVIS_PYTHON_VERSION == "2.6" ]]; then

pip install --allow-external Genshi --allow-insecure Genshi -r requirements-optional-2.6.txt

else

pip install --allow-external Genshi --allow-insecure Genshi -r requirements-optional-cpython.txt

fi