def chunks_size(data_list, n):
	"""
	Yield successive n-sized chunks from data_list.
	e.g:
	list(chunks(range(10, 75), 10)))
	>> [[10, 11, 12, 13, 14, 15, 16, 17, 18, 19],
	[20, 21, 22, 23, 24, 25, 26, 27, 28, 29],
	[30, 31, 32, 33, 34, 35, 36, 37, 38, 39],
	[40, 41, 42, 43, 44, 45, 46, 47, 48, 49],
	[50, 51, 52, 53, 54, 55, 56, 57, 58, 59],
	[60, 61, 62, 63, 64, 65, 66, 67, 68, 69],
	[70, 71, 72, 73, 74]]
	"""
	size = (len(data_list) / n)
	if (len(data_list) % n) < 10:
		size += 1
	return size