Glade on Windows using Python

[mbg1708 at planetmail.com]

Using Windows 8.1 Update.
I've loaded ActiveState python (version 2.7) --- installed OK.
I don't need Glade, but I do want to use some Glade XML and run the python application.
To run a Glade application this needs:

     from gi.repository import Gtk

gi.repository is not available to import.

Where can I find gi.repository?....all searches to date have come up empty!

Mary