Problem with inner_hits in elasticsearch_dsl Python client

Hi everyone,

I've encountered a problem I'm hoping someone here can help me with related to accessing inner_hits data using the Python elasticsearch_dsl client. I'll let my code do the talking (the important parts are in the comments after the test data has been generated, but this is completely self-contained so anyone should be able to reproduce the same result):

from elasticsearch import Elasticsearch
from elasticsearch_dsl import Index, Mapping, Nested, Search, Q
from elasticsearch_dsl.connections import connections

index = "test_index"

es_con = connections.create_connection(hosts=["localhost:9200"])
es_index = Index(index)
if es_index.exists():

para_mapping = Mapping("paragraph")
para_mapping.field("sentences", Nested())

test_paras = {}
for a in range(2):
    test_paras[a] = {
        "label": "Test Paragraph p{}".format(a),
        "sentences": []

    for b in range(2):
        test_sent = {
            "text": "Test Sentence p{}s{}".format(a, b),


for idx, para in test_paras.iteritems():
    para_id = "para_id_p{}".format(idx)


q = Search(using=es_con).index(index).doc_type('paragraph')
q = q.query('nested', path='sentences', query=Q('term', **{"sentences.text": "p0s1"}), inner_hits={})
saved_q = q
q = q.execute()
# We got the expected paragraph
print "PARA_ID:                            ", q.hits[0]
# With all sentences
print "PARA[SENTENCES]:                    ", q.hits[0].sentences
# We can see inner_hits is included in para.meta
print "DIR PARA.META:                      ", dir(q.hits[0].meta)
# And it contains a "sentences" object
print "DIR PARA.META.INNER_HITS:           ", dir(q.hits[0].meta.inner_hits)
# Of type elasticsearch_dsl.result.Response
print "TYPE PARA.META.INNER_HITS.SENTENCES:", type(q.hits[0].meta.inner_hits.sentences)
# That contains a "hits" object
print "DIR PARA.META.INNER_HITS.SENTENCES: ", dir(q.hits[0].meta.inner_hits.sentences)
# But every attempted action yields a KeyError: '_type' in result.AttrList()
print q.hits[0].meta.inner_hits.sentences

# So let's try Elasticsearch()
es = Elasticsearch()

results =, body=saved_q.to_dict())
print "\nES RESULT:", results["hits"]["hits"][0]["inner_hits"]["sentences"]["hits"]["hits"][0]["_source"]["text"]

I'm new to Elasticsearch, so I can't be sure I'm not doing something incorrectly with the mappings, but I do doubt it since the Elasticsearch query works just fine. Any ideas?

Thanks in advance for any help!

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.