在一个继承resource2的实体里，打印self.__dict__结果是：
{‘_body‘: <openstack.resource2._ComponentManager object at 0x7f0e02a15550>, ‘_uri‘: <openstack.resource2._ComponentManager object at 0x7f0e02a159d0>, ‘_header‘: <openstack.resource2._ComponentManager object at 0x7f0e02a15f50>}
openstacksdk resource2 打印__dict__
原文：http://www.cnblogs.com/pinganzi/p/6279917.html