/usr/lib/python2.7/dist-packages/boto/s3/ is in python-boto 2.20.1-2ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/boto/s3/__init__.py
/usr/lib/python2.7/dist-packages/boto/s3/acl.py
/usr/lib/python2.7/dist-packages/boto/s3/bucket.py
/usr/lib/python2.7/dist-packages/boto/s3/bucketlistresultset.py
/usr/lib/python2.7/dist-packages/boto/s3/bucketlogging.py
/usr/lib/python2.7/dist-packages/boto/s3/connection.py
/usr/lib/python2.7/dist-packages/boto/s3/cors.py
/usr/lib/python2.7/dist-packages/boto/s3/deletemarker.py
/usr/lib/python2.7/dist-packages/boto/s3/key.py
/usr/lib/python2.7/dist-packages/boto/s3/keyfile.py
/usr/lib/python2.7/dist-packages/boto/s3/lifecycle.py
/usr/lib/python2.7/dist-packages/boto/s3/multidelete.py
/usr/lib/python2.7/dist-packages/boto/s3/multipart.py
/usr/lib/python2.7/dist-packages/boto/s3/prefix.py
/usr/lib/python2.7/dist-packages/boto/s3/resumable_download_handler.py
/usr/lib/python2.7/dist-packages/boto/s3/tagging.py
/usr/lib/python2.7/dist-packages/boto/s3/user.py
/usr/lib/python2.7/dist-packages/boto/s3/website.py