code: def partition(thelist, n):
      
      try:
          n = int(n)
          thelist = list(thelist)
      except (ValueError, TypeError):
          return [thelist]
      p = len(thelist) / n
      return [thelist[p*i:p*(i+1)] for i in range(n - 1)] + [thelist[p*(i+1):]]
docs: Break a list into ``n`` pieces. The last list may be larger than the rest if
      the list doesn't break cleanly. That is::
   
          >>> l = range(10)
   
          >>> partition(l, 2)
          [[0, 1, 2, 3, 4], [5, 6, 7, 8, 9]]
   
          >>> partition(l, 3)
          [[0, 1, 2], [3, 4, 5], [6, 7, 8, 9]]
   
          >>> partition(l, 4)
          [[0, 1], [2, 3], [4, 5], [6, 7, 8, 9]]
   
          >>> partition(l, 5)
          [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9]]