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CHANGELOG.md

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Changelog

Significant changes in major and minor releases of this library:

Version 5.2 (February 2022)

  • Major refactor
  • Added a StableSet implementation, as a base class for OrderedSet.
  • Added Many functions to OrderedSet, to be more complete and more compatible with other implementations.
    • popitem(last: bool = True), similar to dict.popitem (note minor incompatibility with another implementation (orderedset) that have the last keyword in the pop function)
    • move_to_end(key), similar to dict.move_to_end
    • le, lt, ge, gt - to improve subset/superset testing
  • Minimum Python version is 3.8 (because reversed)
  • Fix: OrderedSet.update now raised a TypeError instead of a ValueError when the type of the input is incorrect
  • Added many new tests, and all the tests from 2 other implementations.

Version 4.1 (January 2022)

  • Packaged using flit. Wheels now exist, and setuptools is no longer required.
  • This package now has a typical package structure, instead of being a single module. The code is in ordered_set/__init__.py instead of ordered_set.py.
  • There is an ordered_set/py.typed so that type checkers know about the types.
  • Use the type aliases SetLike[T] and OrderedSetInitializer[T] to simplify some types.
  • Updated the way overloaded type signatures are written to what MyPy currently expects.
  • Minimum Python version is 3.7.

Version 4.0 (January 2020)

  • Added type signatures inline to the code, instead of using type stubs.
  • Dropped Python 2 support. The minimum supported Python version is 3.5.

Version 3.1 (November 2018)

  • __getitem__ accepts NumPy arrays of indices, and returns a list of elements with those indices.
  • Updated in-place operations that took O(N^2) time, such as .difference_update(), to take O(N) time.
  • Clarified whether various methods mutate or copy the OrderedSet.
  • Added OrderedSet.get_loc and OrderedSet.get_indexer as aliases for OrderedSet.index, for interoperability with pandas.Index.
  • Added type stubs in a .pyi file.

Version 3.0 (June 2018)

  • Implemented the abstract base classes collections.MutableSet and collections.Sequence.
  • Changed the behavior of some methods to follow the MutableSet API.
  • Indexing an OrderedSet with [:] returns a copy, not the same object.

Version 2.0 (December 2015)

  • Tuples are allowable values in the set, and are not treated as "fancy indexing".
  • Added update and pop methods.

Version 1.4 (September 2015)

  • Added discard and clear methods.

Version 1.3 (April 2015)

  • Added support for pickling.

Version 1.2 (May 2014)

  • First Python 3 support.

Version 1.1 (August 2013)

  • Added tests.
  • Removed a broken implementation of discard.

Version 1.0 (August 2012)

  • First release.