I want my gtk2+python environment (on windows) support gobject instrospection. It's all about glib, gobject introspection and pygobject libraries. May I just replace the glib and related libraries to latest version? I have downloaded some precompiled version of glib but the programs using old glib could not start anymore.
I have had some success in the past using GTK 2 with GObject Introspection (on Linux), but it was unreliable. Don't do it.
There are official binaries of GTK 3 available for Windows, but you'll likely have to compile GObject Introspection yourself.