def count_trackbacks_handler(sender, **kwargs):
 entry = kwargs['entry']
 entry.trackback_count = (F('trackback_count') + 1)
 entry.save(update_fields=['trackback_count'])

def count_trackbacks_handler ( sender , ** kwargs ) : entry = kwargs [ 'entry' ] entry . trackback_count = ( F ( 'trackback_count' ) + 1 ) entry . save ( update_fields = [ 'trackback_count' ] )
update entry .