Translate the gremlin command to the corresponding gremlin-python statement

[Yingjie Li]

Hello,

Can anyone help translate gremlin-command :g.V().as("a").out().as("b").select('a','b').by("id").groupCount().unfold().filter(select(values).is(gt(1))) 

to the corresponding gremlin-python statement ?

I tried with 

g.V().as_('a').out().as_('b').select('a','b').by('id').groupCount().unfold().filter(__.select(Column.values).is_(P.gt(1)))

and seems it is not recognized. 

Thank you,

Yingjie

[Kelvin Lawrence]

A couple of questions:

1. What error message are you seeing?

2. Is "id" meant to be a property or the actual vertex id (as in T.id)

Cheers

Kelvin

[Yingjie Li]

The "id" is a property. When I ran below (added .toList()  at the the end)

g.V().as_('a').out().as_('b').select('a','b').by('id').groupCount().unfold().filter(__.select(Column.values).is_(P.gt(1))).toList()

Got  error: TypeError: unhashable type: 'dict'

In gremlin, with g.V().as("a").out().as("b").select('a','b').by("id").groupCount().unfold().filter(select(values).is(gt(1))), the result is 

==>{a=A.sensor14, b=A.sensor51}=3

==>{a=A.sensor14, b=A.sensor50}=3

which is as expected. 

Seems I have to change the python code in the similar way as the last post in this link. Still trying to figure out the right syntax.

https://groups.google.com/g/gremlin-users/c/jWUbZS9qKIw/m/lgu3LPDOCQAJ

Yingjie

[Stephen Mallette]

In 3.5.0 we will support dict as a key in python:

https://github.com/apache/tinkerpop/pull/1314

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[Yingjie Li]

Good to know. For now, I got the problem solved by following this link:

http://stephen.genoprime.com/snippet/2020/03/07/snippet-5.html