> I don't think you need anything extra if the RHS of the == is a hashable > literal of some sort and the LHS is always the same simple variable or > subscript expression. If the compiler can recognize the structure (that may > be a big "if"), all you need is a dictionary of offsets stored in the > function's constants. You just execute the equivalent of > > offset = jumptable.get(x, E) That won't work: It maybe that x is not hashable, even though it compares equal with the RHS values. Even if it was hashable, you'd change the language semantics: In the original code, you call __cmp__, say, 20 times; in the modified code, you call __hash__ once and __cmp__ perhaps also once. If __cmp__ has side effects, you get a language change. Regards, Martin
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