pbr!=2.1.0,>=2.0.0 # Apache-2.0
openstackdocstheme>=2.2.1 # Apache-2.0
sphinx>=2.0.0,!=2.1.0 # BSD
yasfb>=0.8.0
testrepository>=0.0.18
testtools>=0.9.34
stestr>=2.0.0
flake8