openstack小技巧

获取neutron插件：

list(pkg_resources.iter_entry_points('neutron.core_plugins'))

list(pkg_resources.iter_entry_points('neutron.ml2.type_drivers'))

list(pkg_resources.iter_entry_points('neutron.ml2.mechanism_drivers'))

list(pkg_resources.iter_entry_points('neutron.service_plugins'))