Bump pylint from 4.0.9 to 4.1.1 - #1959

Sourced from pylint's releases.

v4.1.1

What's new in Pylint 4.1.1?

Release date: 2026-09-29

Other Changes

• Pylint 4.1.0 could not be uploaded to PyPI, because it required an unreleased version of dill on Python 3.15, and PyPI refuses such a dependency. 4.1.1 is the first 4.1 release available on PyPI, see the 4.1.0 changes below.

  Refs #11495

v4.1.0

What's new in Pylint 4.1.0?

Release date: 2026-09-29

Startup is about 25% faster thanks to lazy imports. The import checker caches its isort configuration, which makes pylint about 17% faster on ansible. Finding the files to lint with --recursive=y no longer walks ignored directories such as .venv or node_modules, which took seconds on large trees. The duplicate-code checker and symilar also received optimizations that result in considerable performance improvements and memory use reduction on larger codebases. For example, pandas analysis went from 20 min to 55 s and pylint does not get OOM-killed when analyzing cpython anymore.

Python 3.15 support progresses: the unpacking in comprehensions added by PEP 798 no longer raises false positives, and the standard library deprecations of Python 3.15 are followed.

For CI, there is a new built-in junit output format (--output-format=junit), the NO_COLOR and FORCE_COLOR environment variables are respected, and the files to lint can now be set with the files option in the configuration file.

New checks: looping-through-iterator, impossible-comparison, chained-comparison-all-equal and using-comprehension-unpacking-in-unsupported-version.

Running with --jobs no longer duplicates the messages of extensions or ignores extensions enabled in the configuration.

Plugin authors: the confidence parameter can no longer be None, except in is_message_enabled, and the MSG_STATE_* constants are deprecated in favor of the MessageDisableReason enum.

The required astroid version is now 4.3.2. See the astroid changelog for additional fixes, features, and performance improvements applicable to pylint.

... (truncated)

• 8c6daca Bump pylint to 4.1.1, update changelog (#11499)
• bdb17b3 [Backport maintenance/4.1.x] Only pin the unreleased dill for the tests (#11498)
• 92bb7ba Bump pylint to 4.1.0, update changelog
• 9144956 Fix a crash in import-private-name on attribute access rooted at a non-Name n...
• 68366cb Fix false positive for unnecessary-lambda when variable is reassigned or de...
• c741677 [pre-commit.ci] pre-commit autoupdate (#11488)
• a9ebdf6 Add regression test for unsubscriptable-object FP on class_getitem (#11487)
• b877d3b Do not flag ungrouped imports inside OS platform guards (#11217)
• 87351be Update OSS-Fuzz docs for Python 3.14 (#11485)
• 4f263c1 Fix access checks through called methods (#11456)
• Additional commits viewable in compare view

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