Greetings: As you know, there are several kinds of relationships between classes in the UML -- dependency, association, aggregation, composition. Q1. Is there any article or code example on its implementation in python? Q2. For example, in composition model, the container object may be responsible for the handling of embedded objects' lifecycle. What is the python pattern of such implementation? would it be adding __del__ to the container class to del embedded objects or something else?
Thanks! Biao
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