PyPI · pypi:pyahocorasick

pyahocorasick active

pyahocorasick is a fast and memory efficient library for exact or approximate multi-pattern string search. With the ``ahocorasick.Automaton`` class, you can find multiple key string occurrences at once in some input text. You can use it as a plain dict-like Trie or convert a Trie to an automaton for efficient Aho-Corasick search. And pickle to disk for easy reuse of large automatons. Implemented in C and tested on Python 3.6+. Works on Linux, macOS and Windows. BSD-3-Cause license.

The latest stable version of pyahocorasick is 2.3.1, published on 2026-04-27. Verified by Vigia on 2026-11-13.

Latest stable version	2.3.1
Published	2026-04-27 16:30:25 UTC
Install	`pip install --upgrade pyahocorasick`
Requires	`python >=3.10`
License	BSD-3-Clause and Public-Domain
Advisories on latest version	none known
Last verified	2026-11-13 05:18:29 UTC
Sources	pypi.org

Maintenance

Activity	slowing down
Last stable release	2026-04-27 16:30:25 UTC · 199 days ago
Stable releases in the last 12 months	2
Published versions	32

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`2.3.1`	2026-04-27 16:30:25 UTC
`2.3.0`	2025-12-17 13:01:57 UTC
`2.2.0`	2025-06-19 05:50:52 UTC
`2.1.0`	2024-03-21 13:27:31 UTC
`2.0.0`	2023-01-14 17:37:32 UTC
`1.4.4`	2022-02-20 13:50:13 UTC
`1.4.3`	2022-02-20 12:46:12 UTC
`1.4.2`	2021-03-27 18:19:12 UTC
`1.4.1`	2021-01-26 17:38:47 UTC
`1.4.0`	2019-01-14 16:20:13 UTC
`1.3.0`	2018-12-20 19:06:01 UTC
`1.1.13.1`	2018-12-11 18:38:34 UTC
`1.1.12`	2018-12-03 18:06:27 UTC
`1.1.11`	2018-12-02 17:49:57 UTC
`1.1.10`	2018-11-06 22:40:18 UTC
`1.1.9`	2018-10-25 14:18:44 UTC
`1.1.8`	2018-04-25 18:19:31 UTC
`1.1.7`	2018-02-23 18:02:12 UTC
`1.1.6`	2017-11-27 17:40:24 UTC
`1.1.5`	2017-11-22 12:55:29 UTC

Showing the 20 most recent of 30 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`python 3.8`	`2.1.0`
`python 3.9`	`2.2.0`
`python 3.10`	`2.3.1`
`python 3.11`	`2.3.1`
`python 3.12`	`2.3.1`
`python 3.13`	`2.3.1`

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Frequently asked questions

What is the latest version of pyahocorasick?

The latest stable version of pyahocorasick is 2.3.1, published on 2026-04-27. Verified by Vigia on 2026-11-13.

How do I install the latest version of pyahocorasick?

Run pip install --upgrade pyahocorasick. The latest stable version is 2.3.1 (verified 2026-11-13).

Is pyahocorasick deprecated?

No. pyahocorasick is not marked as deprecated in the registry.

Which Python version does pyahocorasick require?

pyahocorasick 2.3.1 declares this requirement: python >=3.10.

Does pyahocorasick 2.3.1 have known vulnerabilities?

No known advisories affect pyahocorasick 2.3.1 according to the data Vigia checks.

Is pyahocorasick still maintained?

pyahocorasick published 2 stable releases in the last 12 months; the most recent was 199 days ago. Activity: slowing down.

Observed changes

No changes observed yet since Vigia started tracking this package.

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