more-itertools

Python’s itertools library is a gem - you can compose elegant solutions for a variety of problems with the functions it provides. In more-itertools we collect additional building blocks, recipes, and routines for working with Python iterables.

Grouping	chunked, ichunked, chunked_even, sliced, constrained_batches, distribute, divide, split_at, split_before, split_after, split_into, split_when, bucket, unzip, batched, grouper, partition, transpose
Lookahead and lookback	spy, peekable, seekable
Windowing	windowed, substrings, substrings_indexes, stagger, windowed_complete, pairwise, triplewise, sliding_window, subslices
Augmenting	count_cycle, intersperse, padded, repeat_each, mark_ends, repeat_last, adjacent, groupby_transform, pad_none, ncycles
Combining	collapse, sort_together, interleave, interleave_longest, interleave_evenly, zip_offset, zip_equal, zip_broadcast, flatten, roundrobin, prepend, value_chain, partial_product
Summarizing	ilen, unique_to_each, sample, consecutive_groups, run_length, map_reduce, join_mappings, exactly_n, is_sorted, all_equal, all_unique, minmax, first_true, quantify, iequals
Selecting	islice_extended, first, last, one, only, strictly_n, strip, lstrip, rstrip, filter_except, map_except, filter_map, iter_suppress, nth_or_last, unique_in_window, before_and_after, nth, take, tail, unique_everseen, unique_justseen, unique, duplicates_everseen, duplicates_justseen, classify_unique, longest_common_prefix, takewhile_inclusive
Math	dft, idft, convolve, dotproduct, factor, is_prime, nth_prime, matmul, polynomial_from_roots, polynomial_derivative, polynomial_eval, sieve, sum_of_squares, totient
Combinatorics	distinct_permutations, distinct_combinations, circular_shifts, partitions, set_partitions, product_index, combination_index, permutation_index, combination_with_replacement_index, gray_product, outer_product, powerset, powerset_of_sets, random_product, random_permutation, random_combination, random_combination_with_replacement, nth_product, nth_permutation, nth_combination, nth_combination_with_replacement
Wrapping	always_iterable, always_reversible, countable, consumer, with_iter, iter_except
Others	locate, rlocate, replace, numeric_range, side_effect, iterate, loops, difference, make_decorator, SequenceView, time_limited, map_if, iter_index, consume, tabulate, repeatfunc, reshape doublestarmap

Getting started

To get started, install the library with pip:

pip install more-itertools

The recipes from the itertools docs are included in the top-level package:

>>> from more_itertools import flatten
>>> iterable = [(0, 1), (2, 3)]
>>> list(flatten(iterable))
[0, 1, 2, 3]

Several new recipes are available as well:

>>> from more_itertools import chunked
>>> iterable = [0, 1, 2, 3, 4, 5, 6, 7, 8]
>>> list(chunked(iterable, 3))
[[0, 1, 2], [3, 4, 5], [6, 7, 8]]

>>> from more_itertools import spy
>>> iterable = (x * x for x in range(1, 6))
>>> head, iterable = spy(iterable, n=3)
>>> list(head)
[1, 4, 9]
>>> list(iterable)
[1, 4, 9, 16, 25]

For the full listing of functions, see the API documentation.

Links elsewhere

Blog posts about more-itertools:

Development

more-itertools is maintained by @erikrose and @bbayles, with help from many others. If you have a problem or suggestion, please file a bug or pull request in this repository. Thanks for contributing!

Version History

The version history can be found in documentation.

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

more-itertools-10.6.0.tar.gz (125.0 kB view details)

Uploaded Jan 14, 2025 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

more_itertools-10.6.0-py3-none-any.whl (63.0 kB view details)

Uploaded Jan 14, 2025 Python 3

File details

Details for the file more-itertools-10.6.0.tar.gz.

File metadata

Download URL: more-itertools-10.6.0.tar.gz
Upload date: Jan 14, 2025
Size: 125.0 kB
Tags: Source
Uploaded using Trusted Publishing? No
Uploaded via: twine/5.1.1 CPython/3.9.7

File hashes

Hashes for more-itertools-10.6.0.tar.gz
Algorithm	Hash digest
SHA256	`2cd7fad1009c31cc9fb6a035108509e6547547a7a738374f10bd49a09eb3ee3b`
MD5	`48da05632079828fd2e89e238192bb69`
BLAKE2b-256	`883b7fa1fe835e2e93fd6d7b52b2f95ae810cf5ba133e1845f726f5a992d62c2`

See more details on using hashes here.

File details

Details for the file more_itertools-10.6.0-py3-none-any.whl.

File metadata

Download URL: more_itertools-10.6.0-py3-none-any.whl
Upload date: Jan 14, 2025
Size: 63.0 kB
Tags: Python 3
Uploaded using Trusted Publishing? No
Uploaded via: twine/5.1.1 CPython/3.9.7

File hashes

Hashes for more_itertools-10.6.0-py3-none-any.whl
Algorithm	Hash digest
SHA256	`6eb054cb4b6db1473f6e15fcc676a08e4732548acd47c708f0e179c2c7c01e89`
MD5	`6d7680b7de22904ddff6e2dedbc1579b`
BLAKE2b-256	`23620fe302c6d1be1c777cab0616e6302478251dfbf9055ad426f5d0def75c89`