/usr/lib/ is in python-egenix-mxurl 3.2.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/mx/URL/mxURL/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/mx/
/usr/lib/python2.7/dist-packages/mx/URL/
/usr/lib/python2.7/dist-packages/mx/URL/mxURL/mxURL.so
/usr/lib/pyshared/
/usr/lib/pyshared/python2.7/
/usr/lib/pyshared/python2.7/mx/
/usr/lib/pyshared/python2.7/mx/URL/
/usr/lib/pyshared/python2.7/mx/URL/mxURL/
/usr/lib/python2.7/dist-packages/mx/URL/mxURL/__init__.py
/usr/lib/python2.7/dist-packages/mx/URL/mxURL/test.py
/usr/lib/python2.7/dist-packages/mx/URL/LazyModule.py
/usr/lib/python2.7/dist-packages/mx/URL/Listing.py
/usr/lib/python2.7/dist-packages/mx/URL/URL.py
/usr/lib/python2.7/dist-packages/mx/URL/__init__.py
/usr/lib/pyshared/python2.7/mx/URL/mxURL/mxURL.so