in reply to How best to implement multiple interfaces in perl

I'm about to embark on an oo development project in perl and require (no pun intended) a way of implementing an interface in a fool proof fashion

You can't: as soon as you write foolproof code, along comes a better fool.

(Paraphrased from a Sherm Pendley's quote from clpmisc - incidentally, he also adds: "But it's still worth making the attempt.")

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