[jira] [Commented] (ARROW-8079) [Python] Implement a wrapper for KeyValueMetadata, duck-typing dict where relevant

["Antoine Pitrou (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-8079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058040#comment-17058040 ] 

Antoine Pitrou commented on ARROW-8079:
---------------------------------------

Returning a dict in the common case has a virtue, though, because it's a well-known type that everybody knows to handle.

> [Python] Implement a wrapper for KeyValueMetadata, duck-typing dict where relevant
> ----------------------------------------------------------------------------------
>
>                 Key: ARROW-8079
>                 URL: https://issues.apache.org/jira/browse/ARROW-8079
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 0.17.0
>
>
> Per mailing list discussion, it may be better to not return the metadata always as a dict and instead wrap the KeyValueMetadata methods. We can make {{__getitem__}} lookup a key in it of course



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