Sparql query dates json results in the same format that in web portal

Question

How to get the results related to dates from Sparql queries in wikidata in JSON through Python codes in the same format they appear when I query directly through the web?

When I query in Wikidata Query Portal (Try it), some dates appear formatted like 21 de junho de 1839, but when i request them via Python with the library SPARQLWrapper, they appear this way: 1839-06-21T00:00:00Z. How to get the "beautified version" from site in JSON?

Answer 1

I have slightly modified your query and added it to the wikidata.yaml sample queries of the pyLodStorage library for which i am committer so that

sparqlquery -qp wikidata.yaml -qn MachadoDeAssis -f github

works and gives the cut&paste result shown further down below.

sparqlquery -qp wikidata.yaml -qn MachadoDeAssis -f json 

returns

[
  {
    "author": "http://www.wikidata.org/entity/Q311145",
    "authorLabel": "Machado de Assis",
    "birthDate": "1839-06-21 00:00:00"
  }
]

now you can pipe the result thru

| jq '.[] | .birthDate | strptime("%Y-%m-%d %H:%M:%S") | strftime("%c")'

sparqlquery -qp wikidata.yaml -qn MachadoDeAssis -f json | jq '.[] | .birthDate | strptime("%Y-%m-%d %H:%M:%S") | strftime("%c")'

which results in

"Fri Jun 21 00:00:00 1839"

if all runs well in a different locale the output should be according to your locale.

MachadoDeAssis

query

# modified by WF 2022-07-22
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?author ?authorLabel ?birthDate
WHERE 
{
  VALUES ?authorLabel {
    "Machado de Assis"@pt
  }
  # Instance of Human
  ?author wdt:P31 wd:Q5 .
  # Joaquim Maria Machado de Assis
  ?author rdfs:label ?authorLabel.
  FILTER (LANG(?authorLabel) = "pt").
  # birthDate
  ?author wdt:P569 ?birthDate .
}

try it!

result

author	authorLabel	birthDate
http://www.wikidata.org/entity/Q311145	Machado de Assis	1839-06-21 00:00:00