code: def unique (inlist):
      
      uniques = []
      for item in inlist:
          if item not in uniques:
              uniques.append(item)
      return uniques
docs: Returns all unique items in the passed list.  If the a list-of-lists
  is passed, unique LISTS are found (i.e., items in the first dimension are
  compared).
  
  Usage:   unique (inlist)
  Returns: the unique elements (or rows) in inlist