/usr/lib/python3/dist-packages/sympy/concrete/ is in python3-sympy 0.7.6.1-1.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python3/dist-packages/sympy/concrete/__init__.py
/usr/lib/python3/dist-packages/sympy/concrete/delta.py
/usr/lib/python3/dist-packages/sympy/concrete/expr_with_intlimits.py
/usr/lib/python3/dist-packages/sympy/concrete/expr_with_limits.py
/usr/lib/python3/dist-packages/sympy/concrete/gosper.py
/usr/lib/python3/dist-packages/sympy/concrete/products.py
/usr/lib/python3/dist-packages/sympy/concrete/summations.py
/usr/lib/python3/dist-packages/sympy/concrete/tests/
/usr/lib/python3/dist-packages/sympy/concrete/tests/__init__.py
/usr/lib/python3/dist-packages/sympy/concrete/tests/test_delta.py
/usr/lib/python3/dist-packages/sympy/concrete/tests/test_gosper.py
/usr/lib/python3/dist-packages/sympy/concrete/tests/test_products.py
/usr/lib/python3/dist-packages/sympy/concrete/tests/test_sums_products.py