[gi-demos] catch the correct error class
[gi-demos] catch the correct error class

davibe/pygobject,pexip/pygobject,MathieuDuponchelle/pygobject,davidmalcolm/pygobject,pexip/pygobject,GNOME/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,davibe/pygobject,davibe/pygobject,davidmalcolm/pygobject,nzjrs/pygobject,jdahlin/pygobject,alexef/pygobject,nzjrs/pygobject,GNOME/pygobject,pexip/pygobject,alexef/pygobject,davibe/pygobject,MathieuDuponchelle/pygobject,davidmalcolm/pygobject,choeger/pygobject-cmake,thiblahute/pygobject,sfeltman/pygobject,sfeltman/pygobject,thiblahute/pygobject,alexef/pygobject,GNOME/pygobject,nzjrs/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,sfeltman/pygobject,thiblahute/pygobject