更多 Itertools

https://readthedocs.org/projects/more-itertools/badge/?version=latest

Python 的 itertools 库是一个瑰宝——你可以用它提供的函数来组合各种问题的优雅解决方案。在 more-itertools 中，我们收集了额外的构建块、食谱和例程，用于处理 Python 可迭代对象。

分组	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
前瞻和后顾	spy, peekable, seekable
窗口化	windowed, substrings, substrings_indexes, stagger, windowed_complete, triplewise, sliding_window, subslices
增强	count_cycle, intersperse, padded, repeat_each, mark_ends, repeat_last, adjacent, groupby_transform, pad_none, ncycles
组合	collapse, sort_together, interleave, interleave_longest, interleave_evenly, interleave_randomly, zip_offset, zip_broadcast, flatten, roundrobin, prepend, value_chain, partial_product
并发	concurrent_tee, serialize, synchronized
总结	ilen, unique_to_each, sample, consecutive_groups, run_length, map_reduce, join_mappings, exactly_n, is_sorted, all_equal, all_unique, argmin, argmax, minmax, first_true, quantify, iequals
选择	islice_extended, first, last, one, only, strictly_n, strip, lstrip, rstrip, filter_except, map_except, filter_map, iter_suppress, nth_or_last, extract, 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
数学	dft, idft, convolve, dotproduct, matmul, polynomial_from_roots, polynomial_derivative, polynomial_eval, sum_of_squares, running_median,
整数数学	factor, is_prime, multinomial, nth_prime, sieve totient
组合学	circular_shifts, derangements, gray_product, outer_product, partitions, set_partitions, powerset, powerset_of_sets
	distinct_combinations, distinct_permutations
	combination_index, combination_with_replacement_index, permutation_index, product_index
	nth_combination, nth_combination_with_replacement, nth_permutation, nth_product
	random_combination, random_combination_with_replacement, random_derangement, random_permutation, random_product
包装	always_iterable, always_reversible, countable, consumer, iter_except, with_iter
其他	locate, rlocate, replace, numeric_range, side_effect, iterate, loops, difference, make_decorator, SequenceView, time_limited, map_if, iter_index, consume, tabulate, repeatfunc, reshape, doublestarmap

入门

要开始，请使用 pip 安装库：

pip install more-itertools

来自 itertools 文档的食谱包含在顶级包中：

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

还有一些新食谱可供使用：

>>> 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]

有关函数列表的完整信息，请参阅 API 文档。

其他链接

关于 more-itertools 的博客文章：

开发

more-itertools 由 @erikrose 和 @bbayles 维护，并得到许多其他人的帮助。如果您有任何问题或建议，请在此存储库中提交 bug 或 pull request。感谢您的贡献！

版本历史

版本历史可以在文档中找到。