[OWSLib-users] CatalogueServiceWeb and data.gov exception

[Passmore, James H.]

The line

csw = CatalogueServiceWeb('http://catalog.data.gov/csw?service=CSW&version=2.0.2&request=GetCapabilities')

should be:

csw = CatalogueServiceWeb('http://catalog.data.gov/csw')

or (as you're getting redirected to an https service):

csw = CatalogueServiceWeb('https://catalog.data.gov/csw')

If I use (Python 3.6):

from owslib import csw as csw

c = csw.CatalogueServiceWeb('https://catalog.data.gov/csw')
c.getrecords2(maxrecords=20)
print(c.records)

I get a result (eventually ~ the service seems quite slow).

I've tried running a query but it seems to be taking forever to return

James

From: OWSLib-users [mailto:owslib-users-bounces at lists.osgeo.org] On Behalf Of Davide Muraro
Sent: 01 June 2017 12:44
To: owslib-users at lists.osgeo.org
Subject: [OWSLib-users] CatalogueServiceWeb and data.gov exception


Dear All,



I was doing some tests using CatalogueServiceWeb and the data.gov CSW.



Basically doing something like:


from owslib.csw import CatalogueServiceWeb
from owslib.fes import PropertyIsEqualTo, PropertyIsLike, BBox
csw = CatalogueServiceWeb('http://catalog.data.gov/csw?service=CSW&version=2.0.2&request=GetCapabilities')
query = PropertyIsEqualTo('csw:AnyText', 'map')
csw.getrecords2(constraints=[query], maxrecords=20)
print(csw.records)

i got:

*python3.5/site-packages/owslib/csw.py in getrecords2(self, constraints, sortby, typenames, esn, outputschema, format, startposition, maxrecords, cql, xml, resulttype)
    380
    381             # process search results attributes
--> 382             val = self._exml.find(util.nspath_eval('csw:SearchResults', namespaces)).attrib.get('numberOfRecordsMatched')
    383             self.results['matches'] = int(util.testXMLValue(val, True))
    384             val = self._exml.find(util.nspath_eval('csw:SearchResults', namespaces)).attrib.get('numberOfRecordsReturned')

AttributeError: 'NoneType' object has no attribute 'attrib'


Ideas?

D


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