[sparql-wrapper-devel] unable to get JSON returned from localhost Sesame server

[Jeff H. <ma...@gm...>]

Greetings sparql-wrapper developers,

I'm attempting the most basic sparql-wrapper (1.5.2) select query against a Sesame server repository (2.6.9) and am
unable to get JSON back.  I'm following the example code here:  http://sparql-wrapper.sourceforge.net/.

The response content-type is always application/xml.  Why isn't application/json or sparql-results+json returned?  Is
this a bug in SPARQLWrapper otherwise what am I doing wrong?  Does SPARQLWrapper.setReturnFormat(JSON) not work with Sesame?

Incidentally I do get the proper JSON response using CURL from the cmd line using the following:
curl -g -H "Accept: application/sparql-results+json;charset=UTF-8"
http://localhost:8080/openrdf-sesame/repositories/test?query=select%20*%20where%20{%20?s%20?p%20?o%20}%20limit%205

Thanks, Jeff


from SPARQLWrapper import SPARQLWrapper, JSON
sparql = SPARQLWrapper("http://localhost:8080/openrdf-workbench/repositories/test")
sparql.setReturnFormat(JSON)
q = 'select * where { ?s ?p ?o } limit 5'
sparql.setQuery(q)
results = sparql.query().convert()

# returns:
/Users/Jeff/.virtualenvs/proto/lib/python2.7/site-packages/SPARQLWrapper/Wrapper.py:550: RuntimeWarning: unknown
response content type, returning raw response...
  warnings.warn("unknown response content type, returning raw response...", RuntimeWarning)

print results.info()

# returns:
Server: Apache-Coyote/1.1
Last-Modified: Thu, 27 Sep 2012 20:04:22 GMT
Content-Type: application/xml;charset=UTF-8
Content-Length: 925
Date: Thu, 27 Sep 2012 20:15:30 GMT
Connection: close

results = sparql.query()
print results.info()

{'content-length': '925', 'server': 'Apache-Coyote/1.1', 'last-modified': 'Thu, 27 Sep 2012 20:04:22 GMT', 'connection':
'close', 'date': 'Thu, 27 Sep 2012 20:14:50 GMT', 'content-type': 'application/xml;charset=UTF-8'}