The neutron portsecurity extension has been rehomed into neutron-lib and we are now in the process of consuming it. Suggested actions: - If your project consumes neutron.extensions.portsecurity [2] and there's not an existing patch for your project in [1], please move your imports over to neutron-lib's portsecurity API definition. You can use [3] for reference. We'll hold off on merging [3] until consumers have a chance to switch over and can discuss this topic in our weekly neutron meeting. Thanks [1] https://review.openstack.org/#/q/message:%22use+neutron-lib+port+security%22 [2] http://codesearch.openstack.org/?q=from%20neutron%5C.extensions%20import%20portsecurity [3] https://review.openstack.org/#/c/461464/