orderly-set

Orderly set

orderly-set Permissive license AGING ★ 4 v5.5.0 released 2025-07-10

Install

orderly-set on PyPI

pip

pip install orderly-set

uv

uv add orderly-set

poetry

poetry add orderly-set

Package facts

License	not declared (permissive)
Python support	supports the current Python release (>=3.8)
Install friction	low — pure-Python wheel
Runtime dependencies	none
Maintenance	aging — 399 days since the last release
Last repo commit	2025-07-10
First released	2024-05-16
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: orderly_set-5.5.0-py3-none-any.whl

Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: PyPyTopic :: Software Development

About orderly-set

from the package's own PyPI description — quoted content, verbatim

Orderly Set 5.5.0

Orderly Set is a package containing multiple implementations of Ordered Set.

OrderlySet

This implementation keeps the order in all set operations except set difference operations. As a result, it can do set difference operations much faster than other implementations. Still 2X slower than of Python's built-in set.

StableSet

A StableSet is a mutable set that remembers its insertion order. Featuring: Fast O(1) insertion, deletion, iteration and membership testing. But slow O(N) Index Lookup.

StableSetEq

Same as StableSet but the order of items doesn't matter for equality comparisons.

OrderedSet

An OrderedSet is a mutable data structure that is a hybrid of a list and a set. It remembers its insertion order so that every entry has an index that can be looked up. Featuring: O(1) Index lookup, insertion, iteration and membership testing. But slow O(N) Deletion.

SortedSet

SortedSet is basically set but when printed, turned into string, or iterated over, returns the items in alphabetical order.

Installation

pip install orderly-set

Usage examples

An OrderedSet is created and used like a set:

&gt;&gt;&gt; from orderly_set import...

Read as markdown · JSON record · Source repository · Homepage

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Orderly Set provides multiple ordered set implementations—OrderedSet, StableSet, OrderlySet, and SortedSet—each optimizing different trade-offs between insertion order preservation, index lookup speed, and set operation performance.

Low friction: pure Python wheel with zero runtime dependencies and no compiled components. Repository shows recent activity (last commit 2025-07-10) but maintenance status is aging—399 days since the latest release.

Licensed under MIT (permissive), allowing unrestricted use, modification, and distribution in both open and proprietary projects with minimal obligations.

Usage

pip install orderly-set

from orderly_set import OrderedSet
letters = OrderedSet('abracadabra')
print(letters.index('r'))  # 2
print(letters[2])  # 'r'

Requires Python 3.8 or later; supports PyPy.

Verdict: Orderly Set is a stable, dependency-free library offering multiple ordered set variants with different performance profiles. It carries no known vulnerabilities and permissive licensing, but the aging maintenance status (399 days since last release) and small repository footprint (4 stars) suggest limited active development—suitable for projects needing specific ordered-set trade-offs but not for those requiring frequent updates.

Needs verification

Whether the package is actively maintained or in maintenance-only mode despite recent repository commits
Real-world usage patterns and adoption beyond the top-1000 tier classification

ordered set data structureset with insertion orderfast set operations pythonindexed set collectionmutable ordered collectionset with index lookupsorted set implementation