PyPI · pypi:pyflakes

pyflakes active

passive checker of Python programs

The latest stable version of pyflakes is 4.1.0, published on 2026-10-28. Verified by Vigia on 2026-11-13.

Latest stable version	4.1.0
Published	2026-10-28 20:10:01 UTC
Install	`pip install --upgrade pyflakes`
Requires	`python >=3.11`
License	MIT
Advisories on latest version	none known
Last verified	2026-11-13 15:27:40 UTC
Sources	pypi.org

Maintenance

Activity	active
Last stable release	2026-10-28 20:10:01 UTC · 15 days ago
Stable releases in the last 12 months	5
Published versions	47

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

Version history

Version	Published
`4.1.0`	2026-10-28 20:10:01 UTC
`4.0.3`	2026-10-07 18:57:24 UTC
`4.0.2`	2026-10-03 21:13:59 UTC
`4.0.1`	2026-09-30 19:40:10 UTC
`4.0.0`	2026-09-22 22:37:00 UTC
`3.4.0`	2025-06-20 18:45:26 UTC
`3.3.2`	2025-03-31 13:21:18 UTC
`3.3.1`	2025-03-30 21:57:44 UTC
`3.3.0`	2025-03-29 19:23:40 UTC
`3.2.0`	2024-01-05 00:28:45 UTC
`3.1.0`	2023-07-29 17:00:40 UTC
`3.0.1`	2022-11-24 16:53:41 UTC
`3.0.0`	2022-11-23 18:44:33 UTC
`2.5.0`	2022-07-30 17:29:04 UTC
`2.4.0`	2021-10-06 20:39:49 UTC
`2.3.1`	2021-03-24 16:32:54 UTC
`2.3.0`	2021-03-14 16:33:27 UTC
`2.2.0`	2020-04-10 03:52:17 UTC
`2.1.1`	2019-02-28 19:27:09 UTC
`2.1.0`	2019-01-24 03:14:56 UTC

Showing the 20 most recent of 47 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`	`3.2.0`
`python 3.9`	`3.4.0`
`python 3.10`	`4.0.3`
`python 3.11`	`4.1.0`
`python 3.12`	`4.1.0`
`python 3.13`	`4.1.0`

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Frequently asked questions

What is the latest version of pyflakes?

The latest stable version of pyflakes is 4.1.0, published on 2026-10-28. Verified by Vigia on 2026-11-13.

How do I install the latest version of pyflakes?

Run pip install --upgrade pyflakes. The latest stable version is 4.1.0 (verified 2026-11-13).

Is pyflakes deprecated?

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

Which Python version does pyflakes require?

pyflakes 4.1.0 declares this requirement: python >=3.11.

Does pyflakes 4.1.0 have known vulnerabilities?

No known advisories affect pyflakes 4.1.0 according to the data Vigia checks.

Is pyflakes still maintained?

pyflakes published 5 stable releases in the last 12 months; the most recent was 15 days ago. Activity: active.

Observed changes

Wed Oct 28 2026 20:11:56 GM +0000 (Coordinated Universal Time) — runtime_requirement_changed
Wed Oct 28 2026 20:11:56 GM +0000 (Coordinated Universal Time) — released 4.0.3 → 4.1.0
Wed Oct 07 2026 18:59:57 GM +0000 (Coordinated Universal Time) — released 4.0.2 → 4.0.3
Sat Oct 03 2026 21:18:02 GM +0000 (Coordinated Universal Time) — released 4.0.1 → 4.0.2
Wed Sep 30 2026 19:42:15 GM +0000 (Coordinated Universal Time) — released 4.0.0 → 4.0.1

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