/usr/lib/python2.7/dist-packages/ipywidgets/widgets/ is in python-ipywidgets 6.0.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/__init__.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/domwidget.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/interaction.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/tests/
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/tests/__init__.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/tests/test_interaction.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/tests/test_link.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/tests/test_traits.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/trait_types.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/valuewidget.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_bool.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_box.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_button.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_color.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_controller.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_core.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_date.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_float.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_image.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_int.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_layout.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_link.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_output.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_selection.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_selectioncontainer.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_string.py
/usr/lib/python2.7/dist-packages/ipywidgets/widgets/widget_style.py