Injecting container "self"¶

You can inject container "self" into container providers.

fromdependency_injectorimport containers, providers
classService:
 def__init__(self, name: str):
 self.name = name
classServiceDispatcher:
 def__init__(self, container: containers.Container):
 self.container = container
 defget_services(self):
 for provider in self.container.traverse(types=[providers.Factory]):
 yield provider()
classContainer(containers.DeclarativeContainer):
 __self__ = providers.Self()

 service1 = providers.Factory(Service, name="Service 1")
 service2 = providers.Factory(Service, name="Service 2")
 service3 = providers.Factory(Service, name="Service 3")
 dispatcher = providers.Singleton(ServiceDispatcher, __self__)

if __name__ == "__main__":
 container = Container()
 dispatcher = container.dispatcher()
 for service in dispatcher.get_services():
 print(service.name)

To inject container "self" you need to define Self provider. Container can have only one Self provider.

Usually you will use name __self__. You can also use different name. When you use different name container will also reference defined Self provider in .__self__ attribute.

Provider Self is not listed in container .providers attributes.