/usr/lib/python3/dist-packages/sdl2/ext/ is in python3-sdl2 0.9.3+dfsg2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/sdl2/ext/__init__.py
/usr/lib/python3/dist-packages/sdl2/ext/algorithms.py
/usr/lib/python3/dist-packages/sdl2/ext/array.py
/usr/lib/python3/dist-packages/sdl2/ext/color.py
/usr/lib/python3/dist-packages/sdl2/ext/colorpalettes.py
/usr/lib/python3/dist-packages/sdl2/ext/common.py
/usr/lib/python3/dist-packages/sdl2/ext/compat.py
/usr/lib/python3/dist-packages/sdl2/ext/draw.py
/usr/lib/python3/dist-packages/sdl2/ext/ebs.py
/usr/lib/python3/dist-packages/sdl2/ext/events.py
/usr/lib/python3/dist-packages/sdl2/ext/font.py
/usr/lib/python3/dist-packages/sdl2/ext/gui.py
/usr/lib/python3/dist-packages/sdl2/ext/image.py
/usr/lib/python3/dist-packages/sdl2/ext/particles.py
/usr/lib/python3/dist-packages/sdl2/ext/pixelaccess.py
/usr/lib/python3/dist-packages/sdl2/ext/resources.py
/usr/lib/python3/dist-packages/sdl2/ext/sprite.py
/usr/lib/python3/dist-packages/sdl2/ext/surface.py
/usr/lib/python3/dist-packages/sdl2/ext/window.py