.travis_before_install

# Set up PyQt4 for potential UI tests.

export DISPLAY=:99.0
sh -e /etc/init.d/xvfb start

sudo apt-get install python-qt4 python-qt4-dev

python -c 'import PyQt4'
python -c 'import PyQt4.QtCore'
python -c 'import PyQt4.QtGui'

export ETS_TOOLKIT=qt4