-pyyaml
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+PyYAML>=3.10.0 # MIT
+Jinja2!=2.9.0,!=2.9.1,!=2.9.2,!=2.9.3,!=2.9.4,>=2.8 # BSD License (3 clause)
+six>=1.9.0 # MIT
+sphinx!=1.6.1,>=1.5.1 # BSD
+oslosphinx>=4.7.0 # Apache-2.0
+reno!=2.3.1,>=1.8.0 # Apache-2.0