Changing @ISA can be a useful idiom when testing to make one object temporarily appear as another
But only if you insist on trying to turn Perl into a pessimistically typed language. Us optimistic types just implement the appropriate methods and have done with it. But we've done this discussion already haven't we :)

In reply to Changing @ISA at runtime by pdcawley
in thread perspective and object-disorientation by Ctrl-z

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