[jira] [Commented] (SPARK-32681) PySpark type hints support

["Maciej Szymkiewicz (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-32681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17244012#comment-17244012 ] 

Maciej Szymkiewicz commented on SPARK-32681:
--------------------------------------------

Thanks [~hyukjin.kwon]. As far as I am aware things are in a good shape now ‒ there are some things I'd like to try in the future, but these target infra and / or tests and can safely wait after the release. 

> PySpark type hints support
> --------------------------
>
>                 Key: SPARK-32681
>                 URL: https://issues.apache.org/jira/browse/SPARK-32681
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>    Affects Versions: 3.1.0
>            Reporter: Hyukjin Kwon
>            Assignee: Maciej Szymkiewicz
>            Priority: Critical
>
>  https://github.com/zero323/pyspark-stubs demonstrates a lot of benefits to improve usability in PySpark by leveraging Python type hints.
> By having the type hints in PySpark we can, for example:
> - automatically document the input and output types
> - leverage IDE for error detection and auto-completion
> - have a cleaner definition and easier to understand.
> This JIRA is an umbrella JIRA that targets to port https://github.com/zero323/pyspark-stubs and related items to smoothly run within PySpark.
> It was also discussed in the dev mailing list:  http://apache-spark-developers-list.1001551.n3.nabble.com/Re-PySpark-Revisiting-PySpark-type-annotations-td26232.html



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