sphinx>=1.8.0,<2.0.0;python_version=='2.7' # BSD
sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
sphinxcontrib-httpdomain>=1.3.0 # BSD
sphinxcontrib-pecanwsme>=0.8.0 # Apache-2.0
openstackdocstheme>=1.30.0 # Apache-2.0
reno>=2.5.0 # Apache-2.0