GeeksforGeeks
geeksforgeeks.org › python › break-list-chunks-size-n-python
Break a List into Chunks of Size N in Python - GeeksforGeeks
October 28, 2025 - For Example: a = [1, 2, 3, 4, 5, 6, 7, 8] n = 3 Result: [[1, 2, 3], [4, 5, 6], [7, 8]] Let’s explore different methods one by one. List comprehension is an efficient method for chunking a list into smaller sublists.
DEV Community
dev.to › askyt › break-a-list-into-chunks-of-size-n-in-python-1bj0
Break a list into chunks of size N in Python - DEV Community
January 4, 2025 - ... from collections import deque def deque_chunker(data, size): dq = deque(data) while dq: yield [dq.popleft() for _ in range(min(size, len(dq)))] words = ['red', 'blue', 'green', 'yellow', 'purple', 'orange', 'pink'] chunk_size = 3 ...
python - How do I split a list into equally-sized chunks? - Stack Overflow
If the list is divided evenly, then you can replace zip_longest with zip, otherwise the triplet (13, 14, None) would be lost. Python 3 is used above. For Python 2, use izip_longest. ... Save this answer. ... Show activity on this post. ... Details. AA is array, SS is chunk size. For example: More on stackoverflow.com
How do I split a list of numbers into equal size (of an array?) to pass into an API as an input?
Someone in the original thread posted a great solution using range but here it is all together. abc_contents = [] with open('abc.txt', 'r') as file: abc_contents = file.readlines() # removing white space abc_contents = [i.strip() for i in abc_contents] groups = [] width = 3 for i in range(0, len(abc_contents), width): groups.append(abc_contents[i:i + width]) print(groups) More on reddit.com
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January 28, 2025HELP! How to split a float list in to fixed size of chunks
I would do something like def four_chunks(original): chunk_length = len(original) // 4 return [original[chunk_length*i : chunk_length*(i+1)] for i in range(4)] Or you could make the 4 a parameter, too, if you ever wanted a different amount of chunks. Plus there's the issue of what to do if it doesn't divide evenly: leave a few off, make the last one bigger, raise an error... More on reddit.com
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March 24, 2023Move element within queue/deque
It's just pop and insert. Thus def move_item_by_index(lst, src, dest): elem = lst.pop(src) lst.insert(dest, elem) return lst # not really needed since it's in-place In the REPL: >>> lst = [1, 2, 3, 4, 5] >>> move_item_by_index(lst, 0, 4) [2, 3, 4, 5, 1] >>> move_item_by_index(lst, 4, 1) [2, 1, 3, 4, 5] >>> move_item_by_index(lst, 1, 0) [1, 2, 3, 4, 5] More on reddit.com
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September 18, 202202:11
How To Split Any List Into Equally-Sized Chunks (Python Recipes) ...
08:49
Python Program #57 - Split List Into Evenly Sized Chunks in Python ...
02:07
Python Tip: Split A Python List Into Equal Size Chunks - YouTube
04:01
Python : How do you split a list into evenly sized chunks? - YouTube
00:24
This Python Trick Makes List Splitting 10x Easier! - YouTube
"Chunked List Iteration: Efficiently Process Large Lists"
Delft Stack
delftstack.com › home › howto › python › python split list into chunks
How to Split List Into Chunks in Python | Delft Stack
February 2, 2024 - The last chunk of the split list is test_list[9], but the calculated indices test_list[9:12] will not raise an error but be equal to test_list[9]. This method provides a generator that must be iterated using a for loop. A generator is an efficient way of describing an iterator. from itertools import zip_longest test_list = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"] def group_elements(n, iterable, padvalue="x"): return zip_longest(*[iter(iterable)] * n, fillvalue=padvalue) for output in group_elements(3, test_list): print(output)
Vultr
docs.vultr.com › python › examples › split-a-list-into-evenly-sized-chunks
Python Program to Split a List Into Evenly Sized Chunks | Vultr Docs
April 10, 2025 - This function iterates over the ... to the chunks list. In the example provided, the Python list is split into chunks where each chunk (except possibly the last) has 4 elements....
OneUptime
oneuptime.com › home › blog › how to split a list into chunks in python
How to Split a List Into Chunks in Python
January 25, 2026 - The most straightforward approach uses a list comprehension with range and slicing. def chunk_list(lst, chunk_size): """Split a list into chunks of specified size.
Programiz
programiz.com › python-programming › examples › list-chunks
Python Program to Split a List Into Evenly Sized Chunks
To understand this example, you should have the knowledge of the following Python programming topics: ... def split(list_a, chunk_size): for i in range(0, len(list_a), chunk_size): yield list_a[i:i + chunk_size] chunk_size = 2 my_list = [1,2,3,4,5,6,7,8,9] print(list(split(my_list, chunk_size)))
Medium
medium.com › code-85 › two-simple-algorithms-for-chunking-a-list-in-python-dc46bc9cc1a2
Two Simple Algorithms for Chunking a List in Python | by Jonathan Hsu | Code 85 | Medium
May 17, 2020 - Create a function that converts a list to a two-dimensional “list of lists” where each nested structure is a specified equal length. Here are some example inputs and expected outputs:
w3resource
w3resource.com › python-exercises › list › python-data-type-list-exercise-233.php
Python: Chunk a given list into n smaller lists - w3resource
# Call the 'chunk_list_into_n' function with an example list and the number of chunks. print(chunk_list_into_n([1, 2, 3, 4, 5, 6, 7], 4)) ... Write a Python program to split a list into n nearly equal parts, distributing extra elements evenly ...
Real Python
realpython.com › how-to-split-a-python-list-into-chunks
How to Split a Python List or Iterable Into Chunks – Real Python
July 23, 2026 - Here’s a quick example demonstrating the use of your new function: ... >>> from splitting import split_n >>> for chunk in split_n("ABCDEFGHIJ", 4): ... print(repr(chunk)) ... 'ABC' 'DEF' 'GH' 'IJ' Brilliant! Notice how you’ve preserved the order of elements in each individual chunk. Okay. Now, you know how to split a list or a different kind of Python sequence into a fixed number of chunks without installing any third-party library.
DEV Community
dev.to › askyt › how-do-i-split-a-list-into-equally-sized-chunks-3fd2
How do I split a list into equally-sized chunks? - DEV Community
March 31, 2024 - ... This method is particularly useful when working with numerical data or when you are already using NumPy for data processing. import numpy as np my_list = [1,2,3,4,5,6,7,8,9] # Splitting into 5 chunks chunks = np.array_split(my_list, 5) ...
Educative
educative.io › answers › how-to-split-a-python-list-into-evenly-sized-chunks
How to split a Python list into evenly sized chunks
In the code below, we use list comprehension to return sublists/chunks of the given size. Here, we iterate over the given list by jumping the list by chunk size in every iteration. In every iteration, we get the sublist from the index we’re iterating to the index at the start of the next chunk. ... Line 1: We define a Python list, lst.
ItsMyCode
itsmycode.com › python-split-list-into-chunks
Python Split list into chunks - ItsMyCode
October 15, 2024 - The array_split() function splits the list into sublists of specific size defined as n. # Split a Python List into Chunks using numpy import numpy as np # define array and chunk_szie sample_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] our_array = ...
CodeRivers
coderivers.org › blog › python-chunk-list
Python Chunk List: A Comprehensive Guide - CodeRivers
February 22, 2026 - Each sub-list is a "chunk" of the original list. The size of these chunks can be fixed or variable depending on the requirements. For example, if we have a list of 100 elements and we want to process them in chunks of 10, we will end up with 10 sub-lists, each containing 10 elements.
Top answer 1 of 16
4507
Here's a generator that yields evenly-sized chunks:
def chunks(lst, n):
"""Yield successive n-sized chunks from lst."""
for i in range(0, len(lst), n):
yield lst[i:i + n]
import pprint
pprint.pprint(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]]
For Python 2, using xrange instead of range:
def chunks(lst, n):
"""Yield successive n-sized chunks from lst."""
for i in xrange(0, len(lst), n):
yield lst[i:i + n]
Below is a list comprehension one-liner. The method above is preferable, though, since using named functions makes code easier to understand. For Python 3:
[lst[i:i + n] for i in range(0, len(lst), n)]
For Python 2:
[lst[i:i + n] for i in xrange(0, len(lst), n)]
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671
Something super simple:
def chunks(xs, n):
n = max(1, n)
return (xs[i:i+n] for i in range(0, len(xs), n))
For Python 2, use xrange() instead of range().
30 Seconds of Code
30secondsofcode.org › home › python › split list into chunks
Split a Python list into chunks - 30 seconds of code
July 17, 2024 - In order to chunk a list into n smaller lists, you first need to calculate the size of each chunk, using math.ceil() and len().
Medium
medium.com › @python-javascript-php-html-css › splitting-python-lists-into-equal-sized-chunks-a174907ed413
Splitting Python Lists into Equal-Sized Chunks
August 24, 2024 - The Python scripts provided earlier serve as practical solutions for dividing lists and strings into equal-sized chunks, a frequent requirement in data processing tasks. The first script, aimed at list segmentation, introduces a function named chunk_list which accepts two parameters: the list to be divided and the desired chunk size.
Codingem
codingem.com › home › python how to split a list to n chunks of even size
Python How to Split a List to N Chunks of Even Size
December 7, 2022 - Notice that this approach forces the elements into N chunks. The leftover values aren’t placed in their own chunk but are pushed to the last chunk instead. For example, let’s split a list of 10 numbers into 3 chunks:
TutorialsPoint
tutorialspoint.com › break-a-list-into-chunks-of-size-n-in-python
How do you split a list into evenly sized chunks in Python?
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] chunk_size = 2 for i in range(0, len(numbers), chunk_size): chunk = numbers[i:i + chunk_size] print(chunk) ... Yield is a Python keyword which is used to return from a function, where it does not forget ...
Python Engineer
python-engineer.com › posts › split_list_in_chunks
How to split a List into equally sized chunks in Python - Python Engineer
May 29, 2023 - my_list = list(range(10)) def chunk(lst, n): for i in range(0, len(lst), n): yield lst[i:i + n] chunks = list(chunk(my_list, 3)) # [[0, 1, 2], [3, 4, 5], [6, 7, 8], [9]]
DEV Community
dev.to › itsmycode › python-split-list-into-chunks-332a
Python Split list into chunks - DEV Community
December 8, 2021 - The array_split() function splits the list into sublists of specific size defined as n. # Split a Python List into Chunks using numpy import numpy as np # define array and chunk_szie sample_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] our_array = ...