/usr/lib/ is in python-bittorrent 3.4.2-11.5ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/BitTorrent/
/usr/lib/python2.7/dist-packages/BitTorrent/PiecePicker.py
/usr/lib/python2.7/dist-packages/BitTorrent/StorageWrapper.py
/usr/lib/python2.7/dist-packages/BitTorrent/Rerequester.py
/usr/lib/python2.7/dist-packages/BitTorrent/parseargs.py
/usr/lib/python2.7/dist-packages/BitTorrent/Downloader.py
/usr/lib/python2.7/dist-packages/BitTorrent/Storage.py
/usr/lib/python2.7/dist-packages/BitTorrent/fakeopen.py
/usr/lib/python2.7/dist-packages/BitTorrent/btmakemetafile.py
/usr/lib/python2.7/dist-packages/BitTorrent/spewout.py
/usr/lib/python2.7/dist-packages/BitTorrent/Connecter.py
/usr/lib/python2.7/dist-packages/BitTorrent/DownloaderFeedback.py
/usr/lib/python2.7/dist-packages/BitTorrent/RateMeasure.py
/usr/lib/python2.7/dist-packages/BitTorrent/btformats.py
/usr/lib/python2.7/dist-packages/BitTorrent/bitfield.py
/usr/lib/python2.7/dist-packages/BitTorrent/CurrentRateMeasure.py
/usr/lib/python2.7/dist-packages/BitTorrent/RawServer.py
/usr/lib/python2.7/dist-packages/BitTorrent/Encrypter.py
/usr/lib/python2.7/dist-packages/BitTorrent/Choker.py
/usr/lib/python2.7/dist-packages/BitTorrent/track.py
/usr/lib/python2.7/dist-packages/BitTorrent/selectpoll.py
/usr/lib/python2.7/dist-packages/BitTorrent/btcompletedir.py
/usr/lib/python2.7/dist-packages/BitTorrent/bencode.py
/usr/lib/python2.7/dist-packages/BitTorrent/fmt.py
/usr/lib/python2.7/dist-packages/BitTorrent/__init__.py
/usr/lib/python2.7/dist-packages/BitTorrent/HTTPHandler.py
/usr/lib/python2.7/dist-packages/BitTorrent/NatCheck.py
/usr/lib/python2.7/dist-packages/BitTorrent/zurllib.py
/usr/lib/python2.7/dist-packages/BitTorrent/testtest.py
/usr/lib/python2.7/dist-packages/BitTorrent/Uploader.py
/usr/lib/python2.7/dist-packages/BitTorrent/download.py
/usr/lib/python2.7/dist-packages/BitTorrent-3.4.2.egg-info