pbr>=0.6,!=0.7,<1.0
oslo.concurrency>=1.4.1         # Apache-2.0
oslo.config>=1.6.0  # Apache-2.0
oslo.i18n>=1.3.0  # Apache-2.0
oslo.log>=0.4.0  # Apache-2.0
oslo.serialization>=1.2.0               # Apache-2.0
oslo.utils>=1.2.0                       # Apache-2.0
psutil>=1.1.1,<2.0.0
PyYAML>=3.1.0
pyzmq>=14.3.1 # LGPL+BSD