/usr/lib/python3/dist-packages/astroML/plotting/ is in python3-astroml 0.3-6.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/astroML/plotting/__init__.py
/usr/lib/python3/dist-packages/astroML/plotting/ellipse.py
/usr/lib/python3/dist-packages/astroML/plotting/hist_tools.py
/usr/lib/python3/dist-packages/astroML/plotting/mcmc.py
/usr/lib/python3/dist-packages/astroML/plotting/multiaxes.py
/usr/lib/python3/dist-packages/astroML/plotting/scatter_contour.py
/usr/lib/python3/dist-packages/astroML/plotting/settings.py
/usr/lib/python3/dist-packages/astroML/plotting/tests/
/usr/lib/python3/dist-packages/astroML/plotting/tests/__init__.py
/usr/lib/python3/dist-packages/astroML/plotting/tests/test_devectorize.py
/usr/lib/python3/dist-packages/astroML/plotting/tools.py