more-itertools 11.0.0

Version 11.0.0

on Python PyPI

Potentially breaking changes

• Python 3.9 support was dropped, since it went EOL on 2025-10-31
• callback_iter is deprecated. It will be removed in a future major release.
• iequals no longer returns True when called with ([], [ANY]) (thanks to rhettinger and pochmann3)
• The pred argument for locate and replace must now be able to
  handle a variable number of arguments. See their docstrings for details. (thanks to veeceey, james-wasson, and pochmann3)
• unique_everseen now raises TypeError when input elements are not hashable.
  The silent fallback mechanism for unhashable inputs has been removed. (thanks to rhettinger and karlicoss)
• windowed now raises ValueError when given a window size of 0 (thanks to rhettinger and brevzin)
• Parameter names for flatten, iter_except, repeatfunc, prepend, transpose,
  and sum_of_squares have been changed. Code that uses these functions will need to be updated if it
  uses keywords for positional arguments. (thanks to rhettinger)

New functions

• concurrent_tee: similar to tee, but with guaranteed threading
  semantics (thanks to rhettinger)
• random_derangement: returns a random derangement of elements from an
  iterable (thanks to rhettinger)
• running_mean: yields the mean of values in an iterable, or in a sliding
  window (thanks to rhettinger)
• running_statistics: provides statistics for the values in an iterable, or
  in a sliding window (thanks to rhettinger)
• serialize: wraps a non-concurrent iterator with a lock to enforce
  sequential access (thanks to rhettinger)
• synchronized: wraps an iterator-returning callable to make its iterators
  thread-safe (thanks to rhettinger)
• sized_iterator: wraps an iterable with a known length and implements __len__ (thanks to assaf127)

Changes to existing functions

• The type hints for always_iterable were improved (thanks to rhettinger and maltevesper)
• A potential bug in callback_iter was fixed
• A bug in exactly_n's handling of negative arguments was fixed (thanks to rhettinger)
• extract`` now accepts a monotonic` argument for improved performance (thanks to rhettinger)
• A bug in numeric_range's handling of negative steps was fixed (thanks to bysiber)
• grouper implementation was updated to match the itertools docs (thanks to rhettinger)
• nth_product, product_index, gray_product,
  partial_product, nth_product, product_index, and
  random_product now accept a repeat keyword argument (thanks to rhettinger)
• powerset_of_sets can now construct frozenset instances (thanks to rhettinger)
• The type hints for stagger were improved (thanks to nathanjmcdougall)
• Memory efficiency was improved for partition was improved (thanks to rhettinger and yueyinqiu)
• Performance for the functions count_cycle, difference,
  random_product, was improved nth_combination, nth_combination_with_replacement,
  nth_permuwas improvedtation, nth_product, product_index,
  random_permutation, substrings, and value_chain was
  improved (thanks to rhettinger)
• Performance for ichunked was improved (thanks to pochmann3 and rhettinger)

Other changes

• The docstrings for several functions were improved (thanks to nathanjmcdougall, olliemath, r266-tech, and rhettinger)