/usr/lib/ is in python-usb 1.0.0~b2-2.
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/pyusb-1.0.0b2.egg-info
/usr/lib/python2.7/dist-packages/usb/
/usr/lib/python2.7/dist-packages/usb/control.py
/usr/lib/python2.7/dist-packages/usb/__init__.py
/usr/lib/python2.7/dist-packages/usb/backend/
/usr/lib/python2.7/dist-packages/usb/backend/__init__.py
/usr/lib/python2.7/dist-packages/usb/backend/libusb1.py
/usr/lib/python2.7/dist-packages/usb/backend/libusb0.py
/usr/lib/python2.7/dist-packages/usb/backend/openusb.py
/usr/lib/python2.7/dist-packages/usb/_debug.py
/usr/lib/python2.7/dist-packages/usb/_interop.py
/usr/lib/python2.7/dist-packages/usb/util.py
/usr/lib/python2.7/dist-packages/usb/core.py
/usr/lib/python2.7/dist-packages/usb/legacy.py
/usr/lib/python2.7/dist-packages/usb/_lookup.py
/usr/lib/python2.7/dist-packages/usb/libloader.py