/usr/lib/ is in python-brial 1.2.0-2.
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/brial/
/usr/lib/python2.7/dist-packages/brial/PyPolyBoRi.py
/usr/lib/python2.7/dist-packages/brial/__init__.py
/usr/lib/python2.7/dist-packages/brial/addition.py
/usr/lib/python2.7/dist-packages/brial/blocks.py
/usr/lib/python2.7/dist-packages/brial/check_claims.py
/usr/lib/python2.7/dist-packages/brial/cluster.py
/usr/lib/python2.7/dist-packages/brial/cnf.py
/usr/lib/python2.7/dist-packages/brial/coding.py
/usr/lib/python2.7/dist-packages/brial/context.py
/usr/lib/python2.7/dist-packages/brial/easy_polynomials.py
/usr/lib/python2.7/dist-packages/brial/fglm.py
/usr/lib/python2.7/dist-packages/brial/frontend.py
/usr/lib/python2.7/dist-packages/brial/gbcore.py
/usr/lib/python2.7/dist-packages/brial/gbrefs.py
/usr/lib/python2.7/dist-packages/brial/general_boolean_polynomial.py
/usr/lib/python2.7/dist-packages/brial/heuristics.py
/usr/lib/python2.7/dist-packages/brial/interpolate.py
/usr/lib/python2.7/dist-packages/brial/interred.py
/usr/lib/python2.7/dist-packages/brial/intersect.py
/usr/lib/python2.7/dist-packages/brial/intpolys.py
/usr/lib/python2.7/dist-packages/brial/ll.py
/usr/lib/python2.7/dist-packages/brial/memusage.py
/usr/lib/python2.7/dist-packages/brial/ncf.py
/usr/lib/python2.7/dist-packages/brial/nf.py
/usr/lib/python2.7/dist-packages/brial/parallel.py
/usr/lib/python2.7/dist-packages/brial/parsegat.py
/usr/lib/python2.7/dist-packages/brial/partial.py
/usr/lib/python2.7/dist-packages/brial/plot.py
/usr/lib/python2.7/dist-packages/brial/randompoly.py
/usr/lib/python2.7/dist-packages/brial/rank.py
/usr/lib/python2.7/dist-packages/brial/simplebb.py
/usr/lib/python2.7/dist-packages/brial/specialsets.py
/usr/lib/python2.7/dist-packages/brial/statistics.py
/usr/lib/python2.7/dist-packages/brial-1.0.1.egg-info