Because usually, having a global lexical variable is just bad when you need to go around and change it and our basically is a misfeature in my opinion - it doesn't work on 5.005 should the code need to be used on that platform and it doesn't offer any advantage over use vars().

In reply to Re^3: Fastest way to test membership in a constant set by Corion
in thread Fastest way to test membership in a constant set by Anonymous Monk

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