Python ProvDocument.add_namespace方法代码示例

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
 def test_namespace_inheritance(self):
     prov_doc = ProvDocument()
     prov_doc.add_namespace('ex', 'http://www.example.org/')
     bundle = prov_doc.bundle('ex:bundle')
     e1 = bundle.entity('ex:e1')
     self.assertIsNotNone(e1.identifier, "e1's identifier is None!")
     self.assertRoundTripEquivalence(prov_doc)

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
    def deriveDependency(self, aDO, aRO, derivedList):

        d1 = ProvDocument()  # d1 is now an empty provenance document
        d1.add_namespace("dt", "http://cs.ncl.ac.uk/dtsim/")
        e1 = d1.entity(DTns + aRO.id)  # deriving
        ag1 = d1.agent(DTns + str(aDO.id))
        for der in derivedList:
            # create provlet
            e2 = d1.entity(DTns + der.id)  # derived
            d1.wasAttributedTo(e2, ag1)
            d1.wasDerivedFrom(e2, e1)

            # update upstream pointer
            der.upstream = [(aRO, None)]  # aRO is upstream from aRO with no activity

            # update downstream
            aRO.downstream.append((der, None))  # aR1 is downstream from aR1 with no activity

        # update global graph
        e1 = pGlobal.entity(DTns + aRO.id)  # deriving
        ag1 = pGlobal.agent(DTns + str(aDO.id))
        pGlobal.wasAttributedTo(e2, ag1)
        for der in derivedList:
            e2 = pGlobal.entity(DTns + der.id)  # derived
            pGlobal.wasDerivedFrom(e2, e1)

        # trigger credit recomputation
        for der in derivedList:
            # aRO needs its credit updated with aRO1.credit
            aCreditManager.addDerivationCredit(aRO, der.currentTotalCredit)

        # 		self.notify(d1)
        return d1

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def document_with_n_bundles_having_default_namespace(n):
    prov_doc = ProvDocument()
    prov_doc.add_namespace('ex', 'http://www.example.org/')
    for i in range(n):
        x = str(i + 1)
        bundle = prov_doc.bundle('ex:bundle/' + x)
        bundle.set_default_namespace('http://www.example.org/default/' + x)
        bundle.entity('e')
    return prov_doc

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
    def test_xsd_qnames(self):
        prov_doc = ProvDocument()
        ex = Namespace('ex', 'http://www.example.org')
        prov_doc.add_namespace(ex)

        an_xsd_qname = XSDQName(ex['a_value'])
        prov_doc.entity('ex:e1', {'prov:value': an_xsd_qname})

        self.assertPROVJSONRoundTripEquivalence(prov_doc)

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def long_literals():
    g = ProvDocument()

    long_uri = "http://Lorem.ipsum/dolor/sit/amet/consectetur/adipiscing/elit/Quisque/vel/sollicitudin/felis/nec/venenatis/massa/Aenean/lectus/arcu/sagittis/sit/amet/nisl/nec/varius/eleifend/sem/In/hac/habitasse/platea/dictumst/Aliquam/eget/fermentum/enim/Curabitur/auctor/elit/non/ipsum/interdum/at/orci/aliquam/"
    ex = Namespace('ex', long_uri)
    g.add_namespace(ex)

    g.entity('ex:e1', {'prov:label': 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec pellentesque luctus nulla vel ullamcorper. Donec sit amet ligula sit amet lorem pretium rhoncus vel vel lorem. Sed at consequat metus, eget eleifend massa. Fusce a facilisis turpis. Lorem volutpat.'})

    return g

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def job2prov(job):
    """
    Create ProvDocument based on job description
    :param job: UWS job
    :return: ProvDocument
    """

    # job.jdl.content = {
    #     'description': description,
    #     'parameters': parameters,
    #     'results': results,
    #     'executionduration': execdur,
    #     'quote': quote
    # }
    # parameters[pname] = {
    #     'type': p.get('type'),
    #     'required': p.get('required'),
    #     'default': p.get('default'),
    #     'description': list(p)[0].text,
    # }
    # results[r.get('value')] = {
    #     'mediaType': r.get('mediaType'),
    #     'default': r.get('default'),
    #     'description': list(r)[0].text,
    # }

    pdoc = ProvDocument()
    # Declaring namespaces for various prefixes used in the example
    pdoc.add_namespace('prov', 'http://www.w3.org/ns/prov#')
    pdoc.add_namespace('voprov', 'http://www.ivoa.net/ns/voprov#')
    pdoc.add_namespace('cta', 'http://www.cta-observatory.org#')
    pdoc.add_namespace('uwsdata', 'https://voparis-uws-test.obspm.fr/rest/' + job.jobname + '/' + job.jobid + '/')
    pdoc.add_namespace('ctajobs', 'http://www.cta-observatory.org#')
    # Adding an activity
    ctbin = pdoc.activity('ctajobs:' + job.jobname, job.start_time, job.end_time)
    # TODO: add job description, version, url, ...
    # Agent
    pdoc.agent('cta:consortium', other_attributes={'prov:type': "Organization"})
    pdoc.wasAssociatedWith(ctbin, 'cta:consortium')
    # Entities, in and out with relations
    e_in = []
    for pname, pdict in job.jdl.content['parameters'].iteritems():
        #if pname.startswith('in'):
        if any(x in pdict['type'] for x in ['file', 'xs:anyURI']):
            e_in.append(pdoc.entity('uwsdata:parameters/' + pname))
            # TODO: use publisher_did? add prov attributes, add voprov attributes?
            ctbin.used(e_in[-1])
    e_out = []
    for rname, rdict in job.jdl.content['results'].iteritems():
        e_out.append(pdoc.entity('uwsdata:results/' + rname))
        # TODO: use publisher_did? add prov attributes, add voprov attributes?
        e_out[-1].wasGeneratedBy(ctbin)
        for e in e_in:
            e_out[-1].wasDerivedFrom(e)
    return pdoc

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
    def test_xsd_qnames(self):
        prov_doc = ProvDocument()
        ex = Namespace('ex', 'http://www.example.org/')
        prov_doc.add_namespace(ex)
        ex1 = Namespace('ex1', 'http://www.example1.org/')  # ex1 is not added to the document

        an_xsd_qname = XSDQName(ex['a_value'])
        another_xsd_qname = XSDQName(ex1['another_value'])

        e1 = prov_doc.entity('ex:e1', {'prov:value': an_xsd_qname, 'prov:type': another_xsd_qname})
        for _, attr_value in e1.attributes:
            self.assertIsInstance(attr_value, XSDQName)

        self.assertRoundTripEquivalence(prov_doc)

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
    def generateProvlet(self, aDO, aRO):
        # create provlet
        d1 = ProvDocument()  # d1 is now an empty provenance document
        d1.add_namespace("dt", "http://cs.ncl.ac.uk/dtsim/")

        e1 = d1.entity(DTns + aRO.id)
        ag1 = d1.agent(DTns + str(aDO.id))
        d1.wasAttributedTo(e1, ag1)

        # update global graph
        e1 = pGlobal.entity(DTns + aRO.id)
        ag1 = pGlobal.agent(DTns + str(aDO.id))
        pGlobal.wasAttributedTo(e1, ag1)

        # 		self.notify(d1)
        return d1

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def datatypes():
    g = ProvDocument()
    ex = Namespace('ex', 'http://example.org/')
    g.add_namespace(ex)

    attributes = {'ex:int': 100,
                  'ex:float': 100.123456,
                  'ex:long': 123456789000,
                  'ex:bool': True,
                  'ex:str': 'Some string',
                  'ex:unicode': u'Some unicode string with accents: Huỳnh Trung Đông',
                  'ex:timedate': datetime.datetime(2012, 12, 12, 14, 7, 48),
                  'ex:intstr': Literal("PROV Internationalized string", PROV["InternationalizedString"], "en"),
    }
    multiline = """Line1
    Line2
Line3"""
    attributes['ex:multi-line'] = multiline
    g.entity('ex:e1', attributes)
    return g

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
class ProjectProvenance:
    def __init__(self, database_helper, full_provenance=False):
        """
        Initializes the provenance for the mjclawar_rarshad project

        Parameters
        ----------
        database_helper: DatabaseHelper
        full_provenance: bool

        Returns
        -------
        """
        assert isinstance(database_helper, DatabaseHelper)

        self.database_helper = database_helper
        if full_provenance:
            self.prov_doc = ProvDocument.deserialize(dir_info.plan_json)
        else:
            self.prov_doc = ProvDocument()
        self.prov_doc.add_namespace(mcras.BDP_NAMESPACE.name, mcras.BDP_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.ALG_NAMESPACE.name, mcras.ALG_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.DAT_NAMESPACE.name, mcras.DAT_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.LOG_NAMESPACE.name, mcras.LOG_NAMESPACE.link)
        self.prov_doc.add_namespace(mcras.ONT_NAMESPACE.name, mcras.ONT_NAMESPACE.link)

    def write_provenance_json(self):
        self.prov_doc.serialize(dir_info.plan_json)

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def bundles2():
    # https://github.com/lucmoreau/ProvToolbox/blob/master/prov-n/src/test/resources/prov/bundles2.provn
    #===========================================================================
    # document
    g = ProvDocument()

    #   prefix ex  <http://example.org/example/>
    g.add_namespace("ex", "http://www.example.com/")

    #   prefix alice  <http://example.org/alice/>
    #   prefix bob  <http://example.org/bob/>
    g.add_namespace('alice', 'http://example.org/alice/')
    g.add_namespace('bob', 'http://example.org/bob/')

    #   entity(bob:bundle4, [prov:type='prov:Bundle'])
    #   wasGeneratedBy(bob:bundle4, -, 2012-05-24T10:30:00)
    #   agent(ex:Bob)
    #   wasAttributedTo(bob:bundle4, ex:Bob)
    g.entity('bob:bundle4', {'prov:type': PROV['Bundle']})
    g.wasGeneratedBy('bob:bundle4', time='2012-05-24T10:30:00')
    g.agent('ex:Bob')
    g.wasAttributedTo('bob:bundle4', 'ex:Bob')

    #   entity(alice:bundle5, [ prov:type='prov:Bundle' ])
    #   wasGeneratedBy(alice:bundle5, -, 2012-05-25T11:15:00)
    #   agent(ex:Alice)
    #   wasAttributedTo(alice:bundle5, ex:Alice)
    g.entity('alice:bundle5', {'prov:type': PROV['Bundle']})
    g.wasGeneratedBy('alice:bundle5', time='2012-05-25T11:15:00')
    g.agent('ex:Alice')
    g.wasAttributedTo('alice:bundle5', 'ex:Alice')

    #   bundle bob:bundle4
    #     entity(ex:report1, [ prov:type="report", ex:version=1 ])
    #     wasGeneratedBy(ex:report1, -, 2012-05-24T10:00:01)
    #   endBundle
    b4 = g.bundle('bob:bundle4')
    b4.entity('ex:report1', {'prov:type': "report", 'ex:version': 1})
    b4.wasGeneratedBy('ex:report1', time='2012-05-24T10:00:01')

    #   bundle alice:bundle5
    #     entity(ex:report1bis)
    #     mentionOf(ex:report1bis, ex:report1, bob:bundle4)
    #     entity(ex:report2, [ prov:type="report", ex:version=2 ])
    #     wasGeneratedBy(ex:report2, -, 2012-05-25T11:00:01)
    #     wasDerivedFrom(ex:report2, ex:report1bis)
    #   endBundle
    b5 = g.bundle('alice:bundle5')
    b5.entity('ex:report1bis')
    b5.mentionOf('ex:report1bis', 'ex:report1', 'bob:bundle4')
    b5.entity('ex:report2', [('prov:type', "report"), ('ex:version', 2)])
    b5.wasGeneratedBy('ex:report2', time='2012-05-25T11:00:01')
    b5.wasDerivedFrom('ex:report2', 'ex:report1bis')

    # endDocument
    return g

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def bundles1():
    # https://github.com/lucmoreau/ProvToolbox/blob/master/prov-n/src/test/resources/prov/bundles1.provn
    #===============================================================================
    # document
    g = ProvDocument()

    #   prefix ex  <http://example.org/example/>
    EX = Namespace("ex", "http://www.example.com/")
    g.add_namespace(EX)

    #   prefix alice  <http://example.org/alice/>
    #   prefix bob  <http://example.org/bob/>
    g.add_namespace('alice', 'http://example.org/alice/')
    g.add_namespace('bob', 'http://example.org/bob/')

    #   entity(bob:bundle1, [prov:type='prov:Bundle'])
    g.entity('bob:bundle1', {'prov:type': PROV['Bundle']})
    #   wasGeneratedBy(bob:bundle1, -, 2012-05-24T10:30:00)
    g.wasGeneratedBy('bob:bundle1', time='2012-05-24T10:30:00')
    #   agent(ex:Bob)
    g.agent('ex:Bob')
    #   wasAttributedTo(bob:bundle1, ex:Bob)
    g.wasAttributedTo('bob:bundle1', 'ex:Bob')

    #   entity(alice:bundle2, [ prov:type='prov:Bundle' ])
    g.entity('alice:bundle2', {'prov:type': PROV['Bundle']})
    #   wasGeneratedBy(alice:bundle2, -, 2012-05-25T11:15:00)
    g.wasGeneratedBy('alice:bundle2', time='2012-05-25T11:15:00')
    #   agent(ex:Alice)
    g.agent('ex:Alice')
    #   wasAttributedTo(alice:bundle2, ex:Alice)
    g.wasAttributedTo('alice:bundle2', 'ex:Alice')

    #   bundle bob:bundle1
    b1 = g.bundle('bob:bundle1')
    #     entity(ex:report1, [ prov:type="report", ex:version=1 ])
    b1.entity('ex:report1', {'prov:type': "report", 'ex:version': 1})
    #     wasGeneratedBy(ex:report1, -, 2012-05-24T10:00:01)
    b1.wasGeneratedBy('ex:report1', time='2012-05-24T10:00:01')
    #   endBundle

    #   bundle alice:bundle2
    b2 = g.bundle('alice:bundle2')
    #     entity(ex:report1)
    b2.entity('ex:report1')
    #     entity(ex:report2, [ prov:type="report", ex:version=2 ])
    b2.entity('ex:report2', {'prov:type': "report", 'ex:version': 2})
    #     wasGeneratedBy(ex:report2, -, 2012-05-25T11:00:01)
    b2.wasGeneratedBy('ex:report2', time='2012-05-25T11:00:01')
    #     wasDerivedFrom(ex:report2, ex:report1)
    b2.wasDerivedFrom('ex:report2', 'ex:report1')
    #   endBundle

    # endDocument
    return g

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def w3c_publication_1():
    # https://github.com/lucmoreau/ProvToolbox/blob/master/asn/src/test/resources/prov/w3c-publication1.prov-asn
    #===========================================================================
    # bundle
    #
    # prefix ex  <http://example.org/>
    #
    # prefix w3      <http://www.w3.org/>
    # prefix tr      <http://www.w3.org/TR/2011/>
    # prefix process <http://www.w3.org/2005/10/Process-20051014/tr.html#>
    # prefix email   <https://lists.w3.org/Archives/Member/w3c-archive/>
    # prefix chairs  <https://lists.w3.org/Archives/Member/chairs/>
    # prefix trans   <http://www.w3.org/2005/08/01-transitions.html#>
    # prefix rec54   <http://www.w3.org/2001/02pd/rec54#>
    #
    #
    #  entity(tr:WD-prov-dm-20111018, [ prov:type='rec54:WD' ])
    #  entity(tr:WD-prov-dm-20111215, [ prov:type='rec54:WD' ])
    #  entity(process:rec-advance,    [ prov:type='prov:Plan' ])
    #
    #
    #  entity(chairs:2011OctDec/0004, [ prov:type='trans:transreq' ])
    #  entity(email:2011Oct/0141,     [ prov:type='trans:pubreq' ])
    #  entity(email:2011Dec/0111,     [ prov:type='trans:pubreq' ])
    #
    #
    #  wasDerivedFrom(tr:WD-prov-dm-20111215, tr:WD-prov-dm-20111018)
    #
    #
    #  activity(ex:act1,-,-,[prov:type="publish"])
    #  activity(ex:act2,-,-,[prov:type="publish"])
    #
    #  wasGeneratedBy(tr:WD-prov-dm-20111018, ex:act1, -)
    #  wasGeneratedBy(tr:WD-prov-dm-20111215, ex:act2, -)
    #
    #  used(ex:act1, chairs:2011OctDec/0004, -)
    #  used(ex:act1, email:2011Oct/0141, -)
    #  used(ex:act2, email:2011Dec/0111, -)
    #
    #  agent(w3:Consortium, [ prov:type='prov:Organization' ])
    #
    #  wasAssociatedWith(ex:act1, w3:Consortium, process:rec-advance)
    #  wasAssociatedWith(ex:act2, w3:Consortium, process:rec-advance)
    #
    # endBundle
    #===========================================================================

    g = ProvDocument()
    g.add_namespace('ex', 'http://example.org/')
    g.add_namespace('w3', 'http://www.w3.org/')
    g.add_namespace('tr', 'http://www.w3.org/TR/2011/')
    g.add_namespace('process', 'http://www.w3.org/2005/10/Process-20051014/tr.html#')
    g.add_namespace('email', 'https://lists.w3.org/Archives/Member/w3c-archive/')
    g.add_namespace('chairs', 'https://lists.w3.org/Archives/Member/chairs/')
    g.add_namespace('trans', 'http://www.w3.org/2005/08/01-transitions.html#')
    g.add_namespace('rec54', 'http://www.w3.org/2001/02pd/rec54#')

    g.entity('tr:WD-prov-dm-20111018', {'prov:type': 'rec54:WD'})
    g.entity('tr:WD-prov-dm-20111215', {'prov:type': 'rec54:WD'})
    g.entity('process:rec-advance', {'prov:type': 'prov:Plan'})

    g.entity('chairs:2011OctDec/0004', {'prov:type': 'trans:transreq'})
    g.entity('email:2011Oct/0141', {'prov:type': 'trans:pubreq'})
    g.entity('email:2011Dec/0111', {'prov:type': 'trans:pubreq'})

    g.wasDerivedFrom('tr:WD-prov-dm-20111215', 'tr:WD-prov-dm-20111018')

    g.activity('ex:act1', other_attributes={'prov:type': "publish"})
    g.activity('ex:act2', other_attributes={'prov:type': "publish"})

    g.wasGeneratedBy('tr:WD-prov-dm-20111018', 'ex:act1')
    g.wasGeneratedBy('tr:WD-prov-dm-20111215', 'ex:act2')

    g.used('ex:act1', 'chairs:2011OctDec/0004')
    g.used('ex:act1', 'email:2011Oct/0141')
    g.used('ex:act2', 'email:2011Dec/0111')

    g.agent('w3:Consortium', other_attributes={'prov:type': "Organization"})

    g.wasAssociatedWith('ex:act1', 'w3:Consortium', 'process:rec-advance')
    g.wasAssociatedWith('ex:act2', 'w3:Consortium', 'process:rec-advance')

    return g

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
def toW3Cprov(ling,bundl,format='w3c-prov-xml'):
        
        g = ProvDocument()
        vc = Namespace("knmi", "http://knmi.nl")  # namespaces do not need to be explicitly added to a document
        con = Namespace("dfp", "http://dispel4py.org")
        g.add_namespace("dcterms", "http://purl.org/dc/terms/")
        
        'specify bundle'
        bundle=None
        for trace in bundl:
            'specifing user'
            ag=g.agent(vc[trace["username"]],other_attributes={"dcterms:author":trace["username"]})  # first time the ex namespace was used, it is added to the document automatically
            
            if trace['type']=='workflow_run':
                
                trace.update({'runId':trace['_id']})
                bundle=g.bundle(vc[trace["runId"]])
                bundle.actedOnBehalfOf(vc[trace["runId"]], vc[trace["username"]])
                
                dic={}
                i=0
                
                for key in trace:
                    
                
                    if key != "input": 
                        if ':' in key:
                            dic.update({key: trace[key]})
                        else:
                            dic.update({vc[key]: trace[key]})
                    
            
                dic.update({'prov:type': PROV['Bundle']})
                g.entity(vc[trace["runId"]], dic)
                
                dic={}
                i=0
                if type(trace['input'])!=list:
                    trace['input']=[trace['input']]
                for y in trace['input']:
                    for key in y:
                        if ':' in key:
                            dic.update({key: y[key]})
                        else:
                            dic.update({vc[key]: y[key]})
                    dic.update({'prov:type': 'worklfow_input'})
                    bundle.entity(vc[trace["_id"]+"_"+str(i)], dic)
                    bundle.used(vc[trace["_id"]], vc[trace["_id"]+"_"+str(i)], identifier=vc["used_"+trace["_id"]+"_"+str(i)])
                    i=i+1
                    
                    
        'specify lineage'
        for trace in ling:

            #pprint(trace)

            try:
                bundle=g.bundle(vc[trace["runId"]])
                bundle.wasAttributedTo(vc[trace["runId"]], vc["ag_"+trace["username"]],identifier=vc["attr_"+trace["runId"]])
            
            except:
                pass
            'specifing creator of the activity (to be collected from the registy)'
        
            if 'creator' in trace:
                bundle.agent(vc["ag_"+trace["creator"]],other_attributes={"dcterms:creator":trace["creator"]})  # first time the ex namespace was used, it is added to the document automatically
                bundle.wasAssociatedWith('process_'+trace["iterationId"],vc["ag_"+trace["creator"]])
                bundle.wasAttributedTo(vc[trace["runId"]], vc["ag_"+trace["creator"]])
    
            'adding activity information for lineage'
            dic={}
            for key in trace:
                
                if type(trace[key])!=list:
                    if ':' in key:
                        dic.update({key: trace[key]})
                    else:
                        
                        if key=='location':
                            
                            dic.update({"prov:location": trace[key]})    
                        else:
                            dic.update({vc[key]: trace[key]})
            bundle.activity(vc["process_"+trace["iterationId"]], trace["startTime"], trace["endTime"], dic.update({'prov:type': trace["name"]}))
        
            'adding parameters to the document as input entities'
            dic={}
            for x in trace["parameters"]:
                #print x
                if ':' in x["key"]:
                    dic.update({x["key"]: x["val"]})
                else:
                    dic.update({vc[x["key"]]: x["val"]})
                
            dic.update({'prov:type':'parameters'})        
            bundle.entity(vc["parameters_"+trace["instanceId"]], dic)
            bundle.used(vc['process_'+trace["iterationId"]], vc["parameters_"+trace["instanceId"]], identifier=vc["used_"+trace["iterationId"]])

            'adding input dependencies to the document as input entities'
            dic={}
#.........这里部分代码省略.........

# 需要导入模块: from prov.model import ProvDocument [as 别名]
# 或者: from prov.model.ProvDocument import add_namespace [as 别名]
 def document_1(self):
     d1 = ProvDocument()
     ns_ex = d1.add_namespace('ex', EX_URI)
     d1.entity(ns_ex['e1'])
     return d1