Created attachment 171557 [details] [review]
Uncrash 

All applications that use the latest py-gobject, iff compiled without introspection support crash. This is due to a wrong return of pygi_get_property_value().

If g-o-i is enabled, that function returns NULL or a PyGobject. If g-o-i is not enabled, it returned -1, which actually triggers a compiler warning:
../gi/pygi.h:155: warning: return makes pointer from integer without a cast

There is a full backtrace available in the rednotebook report, which shows that actually python crashes in . (https://bugs.launchpad.net/rednotebook/+bug/652006)

Attached is a patch which lets applications run again.