Binary package “python-gtk2-doc” in ubuntu bionic

Python bindings for the GTK+ widget set - documentation

 This package contains the documentation and API reference for the
 Python bindings of the Pango, ATK, GDK, GTK+ and Glade libraries.
 It is well structured and easy to use.
 .
 The documentation can be browsed with the devhelp documentation
 browser, or with a regular web browser.
 .
 This package also provides several examples showing how to use these
 bindings to build simple GUI applications.
 .
 This package is deprecated, you should migrate to using
 gobject-introspection (GIR) based python bindings instead (PyGObject).
 https://wiki.gnome.org/Projects/PyGObject/IntrospectionPorting