Django Template Tag for Breadcrumbs

navigation_tags.py

@register.inclusion_tag("tags/breadcrumbs.html", takes_context=True)
def breadcrumbs(context):
    self = context.get("self")
    if self is None or self.depth <= 2:
        # When on the home page, displaying breadcrumbs is irrelevant.
        ancestors = ()
    else:
        ancestors = Page.objects.ancestor_of(self, inclusive=True).filter(depth__gt=1, locale=Locale.get_active())
    return {
        "ancestors": ancestors,
        "request": context["request"],
    }