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https://issues.apache.org/jira/browse/SPARK-61203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-61203.
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Resolution: Fixed
Issue resolved by pull request 389
[https://github.com/apache/spark-connect-rust/pull/389]
> Make pyspark.sql.functions an attribute of pyspark.sql once pyspark.sql is
> imported, as PySpark does
> ----------------------------------------------------------------------------------------------------
>
> Key: SPARK-61203
> URL: https://issues.apache.org/jira/browse/SPARK-61203
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: Hyukjin Kwon
> Assignee: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> After `import pyspark.sql`, `pyspark.sql.functions` raised AttributeError in
> the Python client until pyspark.sql.functions was imported explicitly.
> PySpark's modules import the functions package, so `functions` is an
> attribute of pyspark.sql there.
> Repro: `import pyspark.sql; pyspark.sql.functions.col("a")` fails with
> "module 'pyspark.sql' has no attribute 'functions'" in the drop-in and gives
> Column<'a'> in PySpark 4.3.0.
> The fix imports the functions submodule in pyspark/sql/__init__.py. The set
> of names of dir(pyspark.sql) then equals PySpark's.
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