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codeslord/remove duplicate pairs

Created April 10, 2019 10:30
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remove duplicate pairs
pairs = set( [(0,1),(0,1),(1,0),(1,2),(1,0),(2,1)] )
set((a,b) if a<=b else (b,a) for a,b in pairs)
or
pairs = set(frozenset(p) for p in ((0,1),(0,1),(1,0)) )
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