def tags_published():
    """
    Return the published tags.
    """
    from tagging.models import Tag
    from zinnia.models.entry import Entry
    tags_entry_published = Tag.objects.usage_for_queryset(
        Entry.published.all())
    # Need to do that until the issue #44 of django-tagging is fixed
    return Tag.objects.filter(name__in=[t.name for t in tags_entry_published])
Return the published tags.