/usr/lib/python2.7/dist-packages/ is in python-django-mailer 0.2a1.dev3-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/mailer/
/usr/lib/python2.7/dist-packages/mailer/management/
/usr/lib/python2.7/dist-packages/mailer/management/commands/
/usr/lib/python2.7/dist-packages/django_mailer-0.2a1.dev3.egg-info
/usr/lib/python2.7/dist-packages/mailer/lockfile.py
/usr/lib/python2.7/dist-packages/mailer/admin.py
/usr/lib/python2.7/dist-packages/mailer/backend.py
/usr/lib/python2.7/dist-packages/mailer/models.py
/usr/lib/python2.7/dist-packages/mailer/engine.py
/usr/lib/python2.7/dist-packages/mailer/__init__.py
/usr/lib/python2.7/dist-packages/mailer/management/commands/retry_deferred.py
/usr/lib/python2.7/dist-packages/mailer/management/commands/send_mail.py
/usr/lib/python2.7/dist-packages/mailer/management/commands/__init__.py
/usr/lib/python2.7/dist-packages/mailer/management/__init__.py