Bug#800870: pygobject: fails to interoperate with Gtk 3.18

[Simon McVittie]

Source: pygobject
Version: 3.16.2-1
Severity: serious
Tags: fixed-upstream
Forwarded: https://bugzilla.gnome.org/show_bug.cgi?id=749625
Control: block 800798 by -1

pygobject < 3.18 doesn't work with the GIR from Gtk >= 3.18.
See:
https://bugzilla.gnome.org/show_bug.cgi?id=749625
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800798
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800804
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800795

The easiest way to address this is probably to update pygobject,
then add Breaks in the Gtk GIR as suggested in #800798.

Regards,
    S