pylint 4.1.2

v4.1.2

on Python PyPI

What's new in Pylint 4.1.2?

Release date: 2026-10-03

False Positives Fixed

• Fixed a false positive unbalanced-tuple-unpacking when unpacking a tuple
  concatenation whose elements have several possible values.

  Fixed by upgrading astroid to 4.3.3.

  Closes #2621

Other Bug Fixes

• Fixed a crash when calling __bases__ on a class.

  Fixed by upgrading astroid to 4.3.3.

  Closes #11491

• Fix a crash (astroid-error) when the class of a called attribute cannot
  be fully inferred, for example when the attribute is used as a with
  statement target or inside a comprehension.

  Closes #11492

• Fix a crash when a name bound by a type statement (a TypeVar) is used in a with statement.

  Closes #11510

• Fixed a crash (TypeError) in the variables checker when checking a class
  whose metaclass name binding has no line number, for example a class defined
  with metaclass=__annotations__.

  Closes #11511

• Fix a crash in the using-final-decorator-in-unsupported-version check
  when import final is used.

  Closes #11521

• Fix a crash when a plugin passes confidence=None to add_message, as
  pylint-pytest does, for a message that is disabled. confidence=None is
  accepted again and means UNDEFINED, like in pylint 4.0. Passing it
  explicitly to add_message, add_ignored_message or Message now emits a
  DeprecationWarning: it will raise an error in pylint 5.0.

  Closes #11530