/usr/lib/python3/dist-packages/ginga/qtw/ is in python3-ginga 2.6.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/ginga/qtw/CanvasRenderQt.py
/usr/lib/python3/dist-packages/ginga/qtw/ImageViewCanvasQt.py
/usr/lib/python3/dist-packages/ginga/qtw/ImageViewCanvasTypesQt.py
/usr/lib/python3/dist-packages/ginga/qtw/ImageViewQt.py
/usr/lib/python3/dist-packages/ginga/qtw/Plot.py
/usr/lib/python3/dist-packages/ginga/qtw/QtHelp.py
/usr/lib/python3/dist-packages/ginga/qtw/Viewers.py
/usr/lib/python3/dist-packages/ginga/qtw/Widgets.py
/usr/lib/python3/dist-packages/ginga/qtw/__init__.py
/usr/lib/python3/dist-packages/ginga/qtw/plugins/
/usr/lib/python3/dist-packages/ginga/qtw/plugins/WBrowser.py
/usr/lib/python3/dist-packages/ginga/qtw/plugins/__init__.py
/usr/lib/python3/dist-packages/ginga/qtw/tests/
/usr/lib/python3/dist-packages/ginga/qtw/tests/__init__.py
/usr/lib/python3/dist-packages/ginga/qtw/tests/cbar.py