/usr/lib/python3/dist-packages/_pytest/ is in python3-pytest 2.5.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/_pytest/__init__.py
/usr/lib/python3/dist-packages/_pytest/_argcomplete.py
/usr/lib/python3/dist-packages/_pytest/assertion/
/usr/lib/python3/dist-packages/_pytest/assertion/__init__.py
/usr/lib/python3/dist-packages/_pytest/assertion/newinterpret.py
/usr/lib/python3/dist-packages/_pytest/assertion/oldinterpret.py
/usr/lib/python3/dist-packages/_pytest/assertion/reinterpret.py
/usr/lib/python3/dist-packages/_pytest/assertion/rewrite.py
/usr/lib/python3/dist-packages/_pytest/assertion/util.py
/usr/lib/python3/dist-packages/_pytest/capture.py
/usr/lib/python3/dist-packages/_pytest/config.py
/usr/lib/python3/dist-packages/_pytest/core.py
/usr/lib/python3/dist-packages/_pytest/doctest.py
/usr/lib/python3/dist-packages/_pytest/genscript.py
/usr/lib/python3/dist-packages/_pytest/helpconfig.py
/usr/lib/python3/dist-packages/_pytest/hookspec.py
/usr/lib/python3/dist-packages/_pytest/junitxml.py
/usr/lib/python3/dist-packages/_pytest/main.py
/usr/lib/python3/dist-packages/_pytest/mark.py
/usr/lib/python3/dist-packages/_pytest/monkeypatch.py
/usr/lib/python3/dist-packages/_pytest/nose.py
/usr/lib/python3/dist-packages/_pytest/pastebin.py
/usr/lib/python3/dist-packages/_pytest/pdb.py
/usr/lib/python3/dist-packages/_pytest/pytester.py
/usr/lib/python3/dist-packages/_pytest/python.py
/usr/lib/python3/dist-packages/_pytest/recwarn.py
/usr/lib/python3/dist-packages/_pytest/resultlog.py
/usr/lib/python3/dist-packages/_pytest/runner.py
/usr/lib/python3/dist-packages/_pytest/skipping.py
/usr/lib/python3/dist-packages/_pytest/standalonetemplate.py
/usr/lib/python3/dist-packages/_pytest/terminal.py
/usr/lib/python3/dist-packages/_pytest/tmpdir.py
/usr/lib/python3/dist-packages/_pytest/unittest.py