def parse_rrset(e_rrset, connection, zone_id):

    # This dict will be used to instantiate a ResourceRecordSet instance to yield.
    kwargs = {
        'connection': connection,
        'zone_id': zone_id,
    }
    rrset_type = None

    for e_field in e_rrset:
        # Cheesy way to strip off the namespace.
        tag_name = e_field.tag.split('}')[1]
        field_text = e_field.text

        if tag_name == 'Type':
            # Need to store this to determine which ResourceRecordSet
            # subclass to instantiate.
            rrset_type = field_text
            continue
        elif tag_name == 'AliasTarget':
            # A records have some special field values we need.
            alias_hosted_zone_id, alias_dns_name = parse_rrset_alias(e_field)
            kwargs['alias_hosted_zone_id'] = alias_hosted_zone_id
            kwargs['alias_dns_name'] = alias_dns_name
            # Alias A entries have no TTL.
            kwargs['ttl'] = None
            continue
        elif tag_name == 'ResourceRecords':
            kwargs['records'] = parse_rrset_record_values(e_field)
            continue

        # Map the XML tag name to a kwarg name.
        kw_name = RRSET_TAG_TO_KWARG_MAP[tag_name]
        # This will be the key/val pair used to instantiate the
        # ResourceRecordSet instance.
        kwargs[kw_name] = field_text

    if not rrset_type:
        raise Route53Error("No Type tag found in ListResourceRecordSetsResponse.")

    if 'records' not in kwargs:
        # Not all rrsets have records.
        kwargs['records'] = []

    RRSetSubclass = RRSET_TYPE_TO_RSET_SUBCLASS_MAP[rrset_type]
    return RRSetSubclass(**kwargs)
updated the location around which rendering and caching is being done.
dataset/ETHPy150Open gtaylor/python-route53/route53/xml_parsers/list_resource_record_sets_by_zone_id.py/parse_rrset--crossover with--dataset/ETHPy150Open Craig-Macomber/Panda3D-Terrain-System/tileUtil.py/BakeryManager.updateCenter