/usr/lib/python3/dist-packages/future/backports/test/ is in python3-future 0.15.2-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/future/backports/test/__init__.py
/usr/lib/python3/dist-packages/future/backports/test/badcert.pem
/usr/lib/python3/dist-packages/future/backports/test/badkey.pem
/usr/lib/python3/dist-packages/future/backports/test/dh512.pem
/usr/lib/python3/dist-packages/future/backports/test/https_svn_python_org_root.pem
/usr/lib/python3/dist-packages/future/backports/test/keycert.passwd.pem
/usr/lib/python3/dist-packages/future/backports/test/keycert.pem
/usr/lib/python3/dist-packages/future/backports/test/keycert2.pem
/usr/lib/python3/dist-packages/future/backports/test/nokia.pem
/usr/lib/python3/dist-packages/future/backports/test/nullbytecert.pem
/usr/lib/python3/dist-packages/future/backports/test/nullcert.pem
/usr/lib/python3/dist-packages/future/backports/test/pystone.py
/usr/lib/python3/dist-packages/future/backports/test/sha256.pem
/usr/lib/python3/dist-packages/future/backports/test/ssl_cert.pem
/usr/lib/python3/dist-packages/future/backports/test/ssl_key.passwd.pem
/usr/lib/python3/dist-packages/future/backports/test/ssl_key.pem
/usr/lib/python3/dist-packages/future/backports/test/ssl_servers.py
/usr/lib/python3/dist-packages/future/backports/test/support.py