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https://issues.apache.org/jira/browse/SPARK-34544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17292989#comment-17292989
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Maciej Szymkiewicz commented on SPARK-34544:
--------------------------------------------
Overall:
* {{DataFrameLike}} should be replaced with {{pandas.core.frame.DataFrame}}
once we have stable source of annotations form pandas-dev. It was always the
intention.
* While I am not enthusiastic about keeping up with Pandas API changes, we
could update the protocol by re-exporting Pandas annotation with stubgen.
* Alternatively we can try to use third party annotations and provide setup
guide for the users.
* I'd be against removing {{DataFrameLike}} without having working alternative
in place. It won't make end user experience better.
> pyspark toPandas() should return pd.DataFrame
> ---------------------------------------------
>
> Key: SPARK-34544
> URL: https://issues.apache.org/jira/browse/SPARK-34544
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.1.1
> Reporter: Rafal Wojdyla
> Assignee: Maciej Szymkiewicz
> Priority: Major
>
> Right now {{toPandas()}} returns {{DataFrameLike}}, which is an incomplete
> "view" of pandas {{DataFrame}}. Which leads to cases like mypy reporting that
> certain pandas methods are not present in {{DataFrameLike}}, even tho those
> methods are valid methods on pandas {{DataFrame}}, which is the actual type
> of the object. This requires type ignore comments or asserts.
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