8 replies

Can't do explain() traversal step using Gremlin-Python ..

Hi I just started messing around in gremlin-python this week, so likely to be doing something wrong with

, but as mentioned on twitch, I'm unable to add an explain() step to one of my first traversals.
i start with

a connected

graphTraversalSource

graphTraversalSource

and perform the following

vertex = g.add_v("my_vertex").next()
vertex = (
    g.V(vertex)
    .property("~supernode", True)
    .property("foo", "bar")
    .property("baz", "biz")
    .explain()
    .next()
)

vertex = g.add_v("my_vertex").next()
vertex = (
    g.V(vertex)
    .property("~supernode", True)
    .property("foo", "bar")
    .property("baz", "biz")
    .explain()
    .next()
)

when the explain step is reached (or added in as this behaves fine without explian), i get the following error:

TypeError: 'GraphTraversal' object is not callable

TypeError: 'GraphTraversal' object is not callable

so i try removing the parens after explain, but that only puts

[values explain]

[values explain]

at the end of the traversal
if i change explain to a step that certainly does not exist (

foobar

foobar

) and get the same error
trying without next / substituting next for value_map or something has no effect..

if i search my local installation of gremlin python (recently updated from 3.6.4 to 3.7) i get no results..

λ cd ~/.local/lib/python3.10/site-packages/gremlin_python ; grep -rn explain .
λ

λ cd ~/.local/lib/python3.10/site-packages/gremlin_python ; grep -rn explain .
λ

Can't do explain() traversal step using Gremlin-Python ..

Hi I just started messing around in gremlin-python this week, so likely to be doing something wrong with

, but as mentioned on twitch, I'm unable to add an explain() step to one of my first traversals.
i start with

a connected

graphTraversalSource

graphTraversalSource

and perform the following

vertex = g.add_v("my_vertex").next()
vertex = (
    g.V(vertex)
    .property("~supernode", True)
    .property("foo", "bar")
    .property("baz", "biz")
    .explain()
    .next()
)

vertex = g.add_v("my_vertex").next()
vertex = (
    g.V(vertex)
    .property("~supernode", True)
    .property("foo", "bar")
    .property("baz", "biz")
    .explain()
    .next()
)

when the explain step is reached (or added in as this behaves fine without explian), i get the following error:

TypeError: 'GraphTraversal' object is not callable

TypeError: 'GraphTraversal' object is not callable

so i try removing the parens after explain, but that only puts

[values explain]

[values explain]

at the end of the traversal
if i change explain to a step that certainly does not exist (

foobar

foobar

λ cd ~/.local/lib/python3.10/site-packages/gremlin_python ; grep -rn explain .
λ

λ cd ~/.local/lib/python3.10/site-packages/gremlin_python ; grep -rn explain .
λ

Can't do explain() traversal step using Gremlin-Python ..

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