python-dependency-injector/examples/containers/override.py

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2020-08-16 08:10:08 +03:00
"""Container overriding example."""
from dependency_injector import containers, providers
class Service:
...
class ServiceStub:
...
class Container(containers.DeclarativeContainer):
service = providers.Factory(Service)
class OverridingContainer(containers.DeclarativeContainer):
service = providers.Factory(ServiceStub)
if __name__ == '__main__':
container = Container()
overriding_container = OverridingContainer()
container.override(overriding_container)
service = container.service()
assert isinstance(service, ServiceStub)