30秒学会 Python 片段 – Split list into n chunks

Chunks a list into n smaller lists.

• Use math.ceil() and len() to get the size of each chunk.
• Use list() and range() to create a new list of size n.
• Use map() to map each element of the new list to a chunk the length of size.
• If the original list can’t be split evenly, the final chunk will contain the remaining elements.

代码实现

from math import ceil

def chunk_into_n(lst, n):
  size = ceil(len(lst) / n)
  return list(
    map(lambda x: lst[x * size:x * size + size],
    list(range(n)))
  )

使用样例

chunk_into_n([1, 2, 3, 4, 5, 6, 7], 4) # [[1, 2], [3, 4], [5, 6], [7]]

翻译自：https://www.30secondsofcode.org/python/s/chunk-into-n