Comment 4 for bug 1197800

For completeness I also did the following which works:

sudo -i
git clone git://github.com/openstack/glance.git
pip install -r requirements.txt
pip install -r test-requirements.txt
python setup.py install
exit

# <as regular user>
git clone git://github.com/openstack/glance.git
cd glance
./run-tests -N