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

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

Joris Van den Bossche created ARROW-13158:
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             Summary: [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


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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