/usr/lib/python2.7/dist-packages/sympy/simplify/ is in python-sympy 1.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/sympy/simplify/__init__.py
/usr/lib/python2.7/dist-packages/sympy/simplify/combsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/cse_main.py
/usr/lib/python2.7/dist-packages/sympy/simplify/cse_opts.py
/usr/lib/python2.7/dist-packages/sympy/simplify/epathtools.py
/usr/lib/python2.7/dist-packages/sympy/simplify/fu.py
/usr/lib/python2.7/dist-packages/sympy/simplify/hyperexpand.py
/usr/lib/python2.7/dist-packages/sympy/simplify/hyperexpand_doc.py
/usr/lib/python2.7/dist-packages/sympy/simplify/powsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/radsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/ratsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/simplify.py
/usr/lib/python2.7/dist-packages/sympy/simplify/sqrtdenest.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/__init__.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_combsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_cse.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_epathtools.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_fu.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_function.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_hyperexpand.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_powsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_radsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_ratsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_rewrite.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_simplify.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_sqrtdenest.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_traversaltools.py
/usr/lib/python2.7/dist-packages/sympy/simplify/tests/test_trigsimp.py
/usr/lib/python2.7/dist-packages/sympy/simplify/traversaltools.py
/usr/lib/python2.7/dist-packages/sympy/simplify/trigsimp.py