30-seconds-of-code/snippets/python/s/chunk.md

title, type, language, tags, cover, dateModified

title	type	language	tags	cover	dateModified
Split list into chunks	snippet	python	list	red-berries	2020-11-02T19:27:07+02:00

Chunks a list into smaller lists of a specified size.

• Use list() and range() to create a list of the desired size.
• Use map() on the list and fill it with splices of the given list.
• Finally, return the created list.

from math import ceil

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

chunk([1, 2, 3, 4, 5], 2) # [[1, 2], [3, 4], [5]]