/usr/lib/python3/dist-packages/astroid/brain/ is in python3-astroid 1.4.4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/astroid/brain/brain_builtin_inference.py
/usr/lib/python3/dist-packages/astroid/brain/brain_dateutil.py
/usr/lib/python3/dist-packages/astroid/brain/brain_gi.py
/usr/lib/python3/dist-packages/astroid/brain/brain_mechanize.py
/usr/lib/python3/dist-packages/astroid/brain/brain_nose.py
/usr/lib/python3/dist-packages/astroid/brain/brain_numpy.py
/usr/lib/python3/dist-packages/astroid/brain/brain_pytest.py
/usr/lib/python3/dist-packages/astroid/brain/brain_qt.py
/usr/lib/python3/dist-packages/astroid/brain/brain_six.py
/usr/lib/python3/dist-packages/astroid/brain/brain_stdlib.py