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https://issues.apache.org/jira/browse/SPARK-34629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17295700#comment-17295700
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Hyukjin Kwon commented on SPARK-34629:
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cc [~ravwojdyla] too FYI
> Python type hints improvement
> -----------------------------
>
> Key: SPARK-34629
> URL: https://issues.apache.org/jira/browse/SPARK-34629
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 3.1.2
> Reporter: Hyukjin Kwon
> Priority: Critical
>
> We added PySpark type hints at SPARK-32681
> However, looks like there are still many missing APIs to type. I maintain a
> project called [Koalas](https://github.com/databricks/koalas), and I found
> these errors
> https://gist.github.com/HyukjinKwon/9faabc5f2680b56007d71ef7cf0ad400
> For example, {{pyspark.__version__}} and {{pyspark.sql.Column.contains}} are
> missing in the type hints.
> I believe this is the same case to other projects that enables mypy in their
> project (presumably also given SPARK-34544).
> This umbrella JIRA targets to identify such cases and improve Python type
> hints in PySpark.
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