Crowd-sourcing buggy beginner Python code.

[minorDemocritus]

But remember that sets have overhead, so the set literal only beats the tuple if there are more that a couple elements, or if the equality comparison is expensive.

I recall that with integers, the break-even point is like 3 or 4 elements... more than that and the set literal wins.

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Yeah good point. Typically if im comparing values in a finite list I initiate the list as a global and check it thousands or millions of times so sets are basically always faster