[jira] [Commented] (ARROW-640) [Python] Arrow types should have a sensible __hash__ and comparison

["Wes McKinney (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15928649#comment-15928649 ] 

Wes McKinney commented on ARROW-640:
------------------------------------

Sort of related to ARROW-47. Probably not worth adding a scalar object model in C++ at this point and keeping the value wrapper layer in Python-land

> [Python] Arrow types should have a sensible __hash__ and comparison
> -------------------------------------------------------------------
>
>                 Key: ARROW-640
>                 URL: https://issues.apache.org/jira/browse/ARROW-640
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>            Reporter: Miki Tebeka
>
> {noformat}
> In [86]: arr = pa.from_pylist([1, 1, 1, 2])
> In [87]: set(arr)
> Out[87]: {1, 2, 1, 1}
> In [88]: arr[0] == arr[1]
> Out[88]: False
> In [89]: arr
> Out[89]: 
> <pyarrow.array.Int64Array object at 0x7f8c8c739e08>
> [
>   1,
>   1,
>   1,
>   2
> ]
> {noformat}



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