Remove overly verbose warnings in the Python loader
Remove overly verbose warnings in the Python loader

Instead of very specific and still confusing messages
we use g_return_*() to give us an idea about what
went wrong while initializing. This only affects the
internal Python initialization code.

https://bugzilla.gnome.org/show_bug.cgi?id=742349

GNOME/libpeas,GNOME/libpeas,gregier/libpeas,Distrotech/libpeas,Distrotech/libpeas,chergert/libpeas,gregier/libpeas,chergert/libpeas,gregier/libpeas,chergert/libpeas,Distrotech/libpeas,gregier/libpeas