Michal: see the Dependencies.txt attachment (all hail apport):
libglib2.0-0 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp] libglib2.0-data 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp]
I'm afraid quantal's pygobject doesn't yet work with glib 2.35.x, you would have to update pygobject to 3.7.x for this.
Michal: see the Dependencies.txt attachment (all hail apport):
libglib2.0-0 2.35.4- 0ubuntu5~ webupd8~ quantal [origin: LP-PPA- webupd8team- gvfs-libmtp] 0ubuntu5~ webupd8~ quantal [origin: LP-PPA- webupd8team- gvfs-libmtp]
libglib2.0-data 2.35.4-
I'm afraid quantal's pygobject doesn't yet work with glib 2.35.x, you would have to update pygobject to 3.7.x for this.