Add some examples from presentation

examples/speech/container.py

@@ -0,0 +1,21 @@
+"""IoC container example."""
+
+import collections
+
+import dependency_injector.containers as containers
+import dependency_injector.providers as providers
+
+
+class Container(containers.DeclarativeContainer):
+    """IoC container."""
+
+    engine_factory = providers.Factory(collections.namedtuple('Engine', []))
+    car_factory = providers.Factory(collections.namedtuple('Car', ['engine']),
+                                    engine=engine_factory)
+
+if __name__ == '__main__':
+    car1 = Container.car_factory()
+    car2 = Container.car_factory()
+
+    assert car1 is not car2
+    assert car1.engine is not car2.engine

examples/speech/factory.py

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+"""Factory provider example."""
+
+from dependency_injector import providers
+
+
+object_factory = providers.Factory(object)
+
+if __name__ == '__main__':
+    object1 = object_factory()
+    object2 = object_factory()
+
+    assert object1 is not object2
+    assert isinstance(object1, object) and isinstance(object2, object)

examples/speech/factory_injections.py

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+"""Factory provider keyword argument injections example."""
+
+import collections
+
+import dependency_injector.providers as providers
+
+
+engine_factory = providers.Factory(collections.namedtuple('Engine', []))
+car_factory = providers.Factory(collections.namedtuple('Car', ['engine']),
+                                engine=engine_factory)
+
+if __name__ == '__main__':
+    car1 = car_factory()
+    car2 = car_factory()
+
+    assert car1 is not car2
+    assert car1.engine is not car2.engine

examples/speech/factory_override.py

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+"""Overriding of factory provider example."""
+
+from dependency_injector import providers
+
+
+object_factory = providers.Factory(object)
+
+object_factory.override(providers.Factory(list))
+
+if __name__ == '__main__':
+    object1 = object_factory()
+    object2 = object_factory()
+
+    assert object1 is not object2
+    assert isinstance(object1, list) and isinstance(object2, list)

examples/speech/inject.py

@@ -0,0 +1,16 @@
+"""@inject decorator example."""
+
+from container import Container
+
+from dependency_injector.injections import inject
+
+
+@inject(car1=Container.car_factory)
+@inject(car2=Container.car_factory)
+def main(car1, car2):
+    """Main function."""
+    assert car1 is not car2
+    assert car1.engine is not car2.engine
+
+if __name__ == '__main__':
+    main()