operator overloading for the set builtin #python

>>> a = set([1,2,3,4]) >>> b = set([3,4,5,6]) >>> a | b # Union {1, 2, 3, 4, 5, 6} >>> a & b # Intersection {3, 4} >>> a < b # Subset False >>> a - b # Difference {1, 2} >>> a ^ b # Symmetric Difference 

{1, 2, 5, 6}

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