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https://issues.apache.org/jira/browse/TINKERPOP-1576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15712951#comment-15712951
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ASF GitHub Bot commented on TINKERPOP-1576:
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Github user FlorianHockmann commented on the issue:

    https://github.com/apache/tinkerpop/pull/509
  
    Ok, I wasn't sure whether those methods make sense for a GLV, but it's good 
to know as I can now also implement it that way for the C# GLV.
    My last commit adds hard-coded implementations for those methods. `__.__()` 
just calls `__.inject()` and `__.start()` returns an empty `GraphTraversal`. 
`start()` can also be called through _statics.py_.


> gremlin-python calls non-existent methods
> -----------------------------------------
>
>                 Key: TINKERPOP-1576
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1576
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: language-variant
>    Affects Versions: 3.2.2, 3.2.3
>            Reporter: Florian Hockmann
>            Priority: Trivial
>
> The {{\_\_}} class calls two methods of the {{GraphTraversal}} class that are 
> not present in that class, namely: the constructor {{__()}} and {{start()}}
> {code}
> >>> __.__()
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "C:\Program 
> Files\Python35\Lib\site-packages\gremlin_python\process\graph_traversal.py", 
> line 401, in __
>     return GraphTraversal(None, None, Bytecode()).__(*args)
> TypeError: 'GraphTraversal' object is not callable
> {code}
> {code}
> >>> __.start()
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "C:\Program 
> Files\Python35\Lib\site-packages\gremlin_python\process\graph_traversal.py", 
> line 623, in start
>     return GraphTraversal(None, None, Bytecode()).start(*args)
> TypeError: 'GraphTraversal' object is not callable
> {code}
> This can be easily fixed by excluding those two methods in the 
> {{GraphTraversalSourceGenerator}}. I will create a pull request for that.



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