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https://issues.apache.org/jira/browse/TINKERPOP-3169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18004293#comment-18004293
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Andrea C commented on TINKERPOP-3169:
-------------------------------------
Hi [~publicjirauser] can you give more information about the stopIteration
error you are seeing?
I was able to use the [python driver example for modern
traversals|https://github.com/apache/tinkerpop/blob/3.7-dev/gremlin-python/src/main/python/examples/modern_traversals.py]
to dynamically add vertex properties similarly to what you have described in
your code using a local gremlin-server loaded with the sample modern graph.
My code:
{code:java}
import sys
sys.path.append("..")
from gremlin_python.process.anonymous_traversal import traversal
from gremlin_python.driver.driver_remote_connection import
DriverRemoteConnection
def main():
rc = DriverRemoteConnection('ws://localhost:8182/gremlin', 'g')
g = traversal().with_remote(rc)
props = dict(name="Test", age=25, city="Test City")
# print original graph data
print(str(g.V().propertyMap().to_list()))
# add a person with dynamic properties from a map
t = g.add_v("person")
for prop, value in props.items():
t = t.property(prop, value)
# execute the traversal and print the result
t = t.propertyMap().next()
print(str(t))
# print the modified graph data
print(str(g.V().propertyMap().to_list()))
rc.close()
if __name__ == "__main__":
main()
{code}
My output:
{code:java}
[{'city': [vp[city->Test City]], 'name': [vp[name->Test]], 'age':
[vp[age->25]]}, {'name': [vp[name->marko]], 'age': [vp[age->29]]}, {'name':
[vp[name->vadas]], 'age': [vp[age->27]]}, {'name': [vp[name->lop]], 'lang':
[vp[lang->java]]}, {'name': [vp[name->josh]], 'age': [vp[age->32]]}, {'name':
[vp[name->ripple]], 'lang': [vp[lang->java]]}, {'name': [vp[name->peter]],
'age': [vp[age->35]]}]
{'city': [vp[city->Test City]], 'name': [vp[name->Test]], 'age': [vp[age->25]]}
[{'city': [vp[city->Test City]], 'name': [vp[name->Test]], 'age':
[vp[age->25]]}, {'name': [vp[name->marko]], 'age': [vp[age->29]]}, {'name':
[vp[name->vadas]], 'age': [vp[age->27]]}, {'name': [vp[name->lop]], 'lang':
[vp[lang->java]]}, {'name': [vp[name->josh]], 'age': [vp[age->32]]}, {'name':
[vp[name->ripple]], 'lang': [vp[lang->java]]}, {'name': [vp[name->peter]],
'age': [vp[age->35]]}, {'city': [vp[city->Test City]], 'name':
[vp[name->Test]], 'age': [vp[age->25]]}]
{code}
> Vertex Creation Return StopItteraion() Error
> --------------------------------------------
>
> Key: TINKERPOP-3169
> URL: https://issues.apache.org/jira/browse/TINKERPOP-3169
> Project: TinkerPop
> Issue Type: Bug
> Affects Versions: 3.7.3
> Reporter: Alfredo
> Priority: Major
>
> The vertex gets created with all its properties, however there's a
> stopItteration() error that is thrown.
> Maybe i'm not doing this correctly but haven't found a way to do it.
> What i'm trying to do is build my vertex and its properties dynamically from
> a list, then "commit" it all in one transaction or call to db engine. Im
> using latest gremlin python library.
> {code:java}
> t = g.add_v("person")
> for prop, value in property_list:
> t = t.property(prop, value)
> response = t.next() # this creates vertex, throws stopIteration() error
> response = t.to_list() # this creates vertex, throws no error but returns
> empty list
> ver_count_after = g.V().count().next() # Shows increase in vertices
> # is there a way to create a vertex with dynamic list of properties in one
> transaction.
> # I cant daisy-chain .property().property() on the command as I don't have a
> finite number of properties {code}
>
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