rootninja

I ran into these two methods for grabbing just the unique elements from a list, one keeps the order, the other relies on sorting the list.

def uniq(list)
    # element order preserved
    set = {}
    return [ set.setdefault(x,x) for x in list if x not in set ]

def uniq(list)
    # element order not preserved
    set = {}
    map( set.__setitem__, list, [] )
    return set.keys()

But then I found some strange code that works really fast. Check out this amazing little one liner!

def getUniqueSynset(hasDupes):
    unique_trick = [ uniq for uniq in hasDupes if uniq not in locals()['_[1]'] ]
    return unique_trick