I'm trying to add printing functionalities to physics.vector.point.Point and looking at other printable objects in the package I've noticed that there are at least two ways of going about this. I've seen classes inheriting from printing.defaults.Printable and then implementing the required methods for printing inside the class definition (e.g. physics.vector.vector.Vector) and I've seen methods being implemented directly into the printer (e.g. vector.basisdependent.BasisDependent). My question is: which way of handling printing is preferred?
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