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object relationships

Posted by davidgillies (davidgillies), 11 October 2005
Hi all,

After the python course I'm quite comfortable with the "is a" type relationships in the classes, e.g. cow is an animal etc. and the use of superclasses.  However how do you express a "has a" type relationship e.g. a team has players so you have a team class and player class but how do you relate the two?  Is there a standard method of relating them?  


Posted by admin (Graham Ellis), 11 October 2005
Hi, David ...

My first quick reaction is that a "has a" relationship is an object within an object ... and a "has a lot of " relationship is an object that includes a list / tuple / dictionary of other objects.

For example, a cricket team object would include a list of 11 player objects ....

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