docs: def partition_horizontal(thelist, n):
      """
      Break a list into ``n`` peices, but "horizontally." That is, 
      ``partition_horizontal(range(10), 3)`` gives::
      
          [[1, 2, 3],
           [4, 5, 6],
           [7, 8, 9],
           [10]]
          
      Clear as mud?
      """
      try:
          n = int(n)
          thelist = list(thelist)
      except (ValueError, TypeError):
          return [thelist]
      newlists = [list() for i in range(int(ceil(len(thelist) / float(n))))]
      for i, val in enumerate(thelist):
          newlists[i/n].append(val)
      return newlists