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https://github.com/ets-labs/python-dependency-injector.git
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44 lines
1.0 KiB
Python
44 lines
1.0 KiB
Python
"""Example of the injecting of provided instance attributes and items."""
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from dependency_injector import containers, providers
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class Service:
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def __init__(self):
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self.value = "foo"
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self.values = [self.value]
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def get_value(self):
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return self.value
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def __getitem__(self, item):
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return self.values[item]
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class Client:
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def __init__(self, value1, value2, value3, value4):
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self.value1 = value1
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self.value2 = value2
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self.value3 = value3
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self.value4 = value4
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class Container(containers.DeclarativeContainer):
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service = providers.Singleton(Service)
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client_factory = providers.Factory(
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Client,
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value1=service.provided[0],
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value2=service.provided.value,
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value3=service.provided.values[0],
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value4=service.provided.get_value.call(),
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)
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if __name__ == "__main__":
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container = Container()
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client = container.client_factory()
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assert client.value1 == client.value2 == client.value3 == "foo"
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