/usr/lib/python3/dist-packages/mpmath/calculus/ is in python3-mpmath 1.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/mpmath/calculus/__init__.py
/usr/lib/python3/dist-packages/mpmath/calculus/approximation.py
/usr/lib/python3/dist-packages/mpmath/calculus/calculus.py
/usr/lib/python3/dist-packages/mpmath/calculus/differentiation.py
/usr/lib/python3/dist-packages/mpmath/calculus/extrapolation.py
/usr/lib/python3/dist-packages/mpmath/calculus/inverselaplace.py
/usr/lib/python3/dist-packages/mpmath/calculus/odes.py
/usr/lib/python3/dist-packages/mpmath/calculus/optimization.py
/usr/lib/python3/dist-packages/mpmath/calculus/polynomials.py
/usr/lib/python3/dist-packages/mpmath/calculus/quadrature.py