[jira] [Assigned] (ARROW-13158) [Python] Fix repr and contains of StructScalar with duplicate field names

["Joris Van den Bossche (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joris Van den Bossche reassigned ARROW-13158:
---------------------------------------------

    Assignee: Joris Van den Bossche

> [Python] Fix repr and contains of StructScalar with duplicate field names
> -------------------------------------------------------------------------
>
>                 Key: ARROW-13158
>                 URL: https://issues.apache.org/jira/browse/ARROW-13158
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Joris Van den Bossche
>            Assignee: Joris Van den Bossche
>            Priority: Major
>
> Broken off from ARROW-9997
> When having duplicate fields, the repr fails:
> {code}
> In [28]: s = pa.scalar([('a', 1), ('b', 2), ('a', 3)], pa.struct([('a', 'int64'), ('b', 'int64'), ('a', 'int64')]))
> In [29]: 0 in s
> Out[29]: True
> In [30]: s
> ....
> KeyError: 'a'
> {code}
> In addition, the contains ({{in}}) operation also shouldn't accept integers (this is also the case for non-duplicate fields)



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