pylint-dev/pylint v3.3.9

on GitHub

What's new in Pylint 3.3.9?

Release date: 2025-10-05

False Positives Fixed

• Fix used-before-assignment for PEP 695 type aliases and parameters.

  Closes #9815

• No longer flag undeprecated functions in importlib.resources as deprecated.

  Closes #10593

• Fix false positive inconsistent-return-statements when using quit() or exit() functions.

  Closes #10508

• Fix false positive undefined-variable (E0602) for for-loop variable shadowing patterns like for item in item: when the variable was previously defined.

  Closes #10562

Other Bug Fixes

• Fixed crash in 'unnecessary-list-index-lookup' when starting an enumeration using
  minus the length of an iterable inside a dict comprehension when the len call was only
  made in this dict comprehension, and not elsewhere. Also changed the approach,
  to use inference in all cases but the simple ones, so we don't have to fix crashes
  one by one for arbitrarily complex expressions in enumerate.

  Closes #10510