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Inheritance, Composition and Associated objects - when to use which - Python example Archive Question: Which should I use? Answer: Probably BOTH![here] . The scenario we took was a restaurant.table as all tables, no matter what shape, have some properties in common. And then we inherit from that base class to give somewhat updated table subclasses for each shape adding in the extra logic to work out how many people can be seated without being on the corners.person s - staff and customers - which have some features in common (such as names) but some differences in their other properties. Again, that's a case of inheritance.Update ... the course carried on the following day, and I added various static methods including a factory, comparators, and overrode the print method for some objects. The final source code is [here] .
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The next step is to say that we have a member of staff responsible for each table, and multiple customers (perhaps) seated at each table. And that's where our composite / associated objects come into play. We don't want to add all the attributes of a staff member to a table - we just want to have a contained or associated object of type staff in our object of type table, and a list of objects of type customer in our object of type table.