code: def batch_iterable(l, n):
      ''' Chunks iterable into n sized batches
      Solution from: http://stackoverflow.com/questions/1915170/split-a-generator-iterable-every-n-items-in-python-splitevery'''
      i = iter(l)
      piece = list(islice(i, n))
      while piece:
          yield piece
          piece = list(islice(i, n)f batch_iterable(l, n):
      ''' Chunks iterable into n sized batches
      Solution from: http://stackoverflow.com/questions/1915170/split-a-generator-iterable-every-n-items-in-python-splitevery'''
      i = iter(l)
      piece = list(islice(i, n))
      while piece:
          yield piece
          piece = list(islice(i, n))
docs: Chunks iterable into n sized batches
      Solution from: http://stackoverflow.com/questions/1915170/split-a-generator-iterable-every-n-items-in-python-splitevery