1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
from __future__ import absolute_import, print_function, division
import math
import time
def divide_into_chunks(the_list, number_chunks):
"""Divides a list into approximately number_chunks smaller lists
>>> divide_into_chunks([1, 2, 7, 3, 22, 8, 5, 22, 333], 3)
[[1, 2, 7], [3, 22, 8], [5, 22, 333]]
>>> divide_into_chunks([1, 2, 7, 3, 22, 8, 5, 22, 333], 4)
[[1, 2, 7], [3, 22, 8], [5, 22, 333]]
>>> divide_into_chunks([1, 2, 7, 3, 22, 8, 5, 22, 333], 5)
[[1, 2], [7, 3], [22, 8], [5, 22], [333]]
>>>
"""
length = len(the_list)
if length == 0:
return [[]]
if length <= number_chunks:
number_chunks = length
chunksize = int(math.ceil(length / number_chunks))
chunks = []
for counter in range(0, length, chunksize):
chunks.append(the_list[counter:counter+chunksize])
return chunks
|
