Multiple dispatch and modules

[jzr]

@lambdakappatheta

Encapsulation aside, since polymorphism can be achieved by means other than defining functions inside the body of a type (at least in Python which is enough for proof of concept, I think), why do people define functions within classes?

I often define methods on MyFoo class in order to ensure it conforms to the AbstractFoo interface. A formal interface makes it easy to ensure I’ve done it right. It’s possible to do this with dispatch too, but Julia doesn’t provide a standard way (yet?).