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1. compare 2 lists

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   easy way to compare lists, use sets :)

    1 >>> l1 = [2,3]
    2 >>> l2 = [4,7,2,3,8,9]
    3 >>> S1, S2 = set(l1), set(l2)
    4 >>> S1
    5 set([2, 3])
    6 >>> S2
    7 set([2, 3, 4, 7, 8, 9])
    8 >>> S1 & S2
    9 set([2, 3])
   10 >>> S1 | S2
   11 set([2, 3, 4, 7, 8, 9])
   12 >>> S1-S2
   13 set([])
   14 >>> S2-S1
   15 set([8, 9, 4, 7])
   

   Posted by benoitc to python interactive console list set ... saved by 1 person ... 0 comments ... 8 months, 2 weeks

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