I am running through the excellent [PyGtk tutorial](https://python-gtk-3-tutorial.readthedocs.io/en/) and tracking it in what I thought was the most up-to-date [PyGtk API reference](http://www.pygtk.org/pygtk2reference/index.html). The tutorial has a topic on the Switch widget but there seems to be no corresponding entry in the PyGtk reference. (There is an entry in the C-language GTK reference, but I was hoping to stay in Python land.)

This makes me wonder if I am somehow missing a more recent PyGtk API reference? The versions are a potential source of confusion, but it seems as if PyGtk is at version 2.x, the underlying Gtk is at 3.x and the tutorial uses Python v3.

Any thoughts on where I should look for PyGtk API documentation for the Switch widget?

Thanks in advance.