/usr/lib/python3/dist-packages/gi/ is in python3-gi 3.20.0-0ubuntu1.
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/usr/lib/python3/dist-packages/gi/__init__.py
/usr/lib/python3/dist-packages/gi/_constants.py
/usr/lib/python3/dist-packages/gi/_error.py
/usr/lib/python3/dist-packages/gi/_gi.cpython-35m-x86_64-linux-gnu.so
/usr/lib/python3/dist-packages/gi/_gobject/
/usr/lib/python3/dist-packages/gi/_gobject/__init__.py
/usr/lib/python3/dist-packages/gi/_option.py
/usr/lib/python3/dist-packages/gi/_propertyhelper.py
/usr/lib/python3/dist-packages/gi/_signalhelper.py
/usr/lib/python3/dist-packages/gi/docstring.py
/usr/lib/python3/dist-packages/gi/importer.py
/usr/lib/python3/dist-packages/gi/module.py
/usr/lib/python3/dist-packages/gi/overrides/
/usr/lib/python3/dist-packages/gi/overrides/GIMarshallingTests.py
/usr/lib/python3/dist-packages/gi/overrides/GLib.py
/usr/lib/python3/dist-packages/gi/overrides/GObject.py
/usr/lib/python3/dist-packages/gi/overrides/Gdk.py
/usr/lib/python3/dist-packages/gi/overrides/Gio.py
/usr/lib/python3/dist-packages/gi/overrides/Gtk.py
/usr/lib/python3/dist-packages/gi/overrides/Pango.py
/usr/lib/python3/dist-packages/gi/overrides/__init__.py
/usr/lib/python3/dist-packages/gi/overrides/keysyms.py
/usr/lib/python3/dist-packages/gi/pygtkcompat.py
/usr/lib/python3/dist-packages/gi/repository/
/usr/lib/python3/dist-packages/gi/repository/__init__.py
/usr/lib/python3/dist-packages/gi/types.py