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https://issues.apache.org/jira/browse/SPARK-33730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-33730:
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Assignee: Maciej Bryński (was: Apache Spark)
> Standardize warning types
> -------------------------
>
> Key: SPARK-33730
> URL: https://issues.apache.org/jira/browse/SPARK-33730
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 3.1.0
> Reporter: Hyukjin Kwon
> Assignee: Maciej Bryński
> Priority: Major
>
> We should use warnings properly per
> [https://docs.python.org/3/library/warnings.html#warning-categories]
> In particular,
> - we should use {{FutureWarning}} instead of {{DeprecationWarning}} for the
> places we should show the warnings to end-users by default.
> - we should __maybe__ think about customizing stacklevel
> ([https://docs.python.org/3/library/warnings.html#warnings.warn]) like pandas
> does.
> - ...
> Current warnings are a bit messy and somewhat arbitrary.
> To be more explicit, we'll have to fix:
> {code:java}
> pyspark/context.py: warnings.warn(
> pyspark/context.py: warnings.warn(
> pyspark/ml/classification.py: warnings.warn("weightCol is
> ignored, "
> pyspark/ml/clustering.py: warnings.warn("Deprecated in 3.0.0. It will
> be removed in future versions. Use "
> pyspark/mllib/classification.py: warnings.warn(
> pyspark/mllib/feature.py: warnings.warn("Both withMean and withStd
> are false. The model does nothing.")
> pyspark/mllib/regression.py: warnings.warn(
> pyspark/mllib/regression.py: warnings.warn(
> pyspark/mllib/regression.py: warnings.warn(
> pyspark/rdd.py: warnings.warn("mapPartitionsWithSplit is deprecated; "
> pyspark/rdd.py: warnings.warn(
> pyspark/shell.py: warnings.warn("Failed to initialize Spark session.")
> pyspark/shuffle.py: warnings.warn("Please install psutil to have
> better "
> pyspark/sql/catalog.py: warnings.warn(
> pyspark/sql/catalog.py: warnings.warn(
> pyspark/sql/column.py: warnings.warn(
> pyspark/sql/column.py: warnings.warn(
> pyspark/sql/context.py: warnings.warn(
> pyspark/sql/context.py: warnings.warn(
> pyspark/sql/context.py: warnings.warn(
> pyspark/sql/context.py: warnings.warn(
> pyspark/sql/context.py: warnings.warn(
> pyspark/sql/dataframe.py: warnings.warn(
> pyspark/sql/dataframe.py: warnings.warn("to_replace is a dict
> and value is not None. value will be ignored.")
> pyspark/sql/functions.py: warnings.warn("Deprecated in 2.1, use degrees
> instead.", DeprecationWarning)
> pyspark/sql/functions.py: warnings.warn("Deprecated in 2.1, use radians
> instead.", DeprecationWarning)
> pyspark/sql/functions.py: warnings.warn("Deprecated in 2.1, use
> approx_count_distinct instead.", DeprecationWarning)
> pyspark/sql/pandas/conversion.py: warnings.warn(msg)
> pyspark/sql/pandas/conversion.py: warnings.warn(msg)
> pyspark/sql/pandas/conversion.py: warnings.warn(msg)
> pyspark/sql/pandas/conversion.py: warnings.warn(msg)
> pyspark/sql/pandas/conversion.py: warnings.warn(msg)
> pyspark/sql/pandas/functions.py: warnings.warn(
> pyspark/sql/pandas/group_ops.py: warnings.warn(
> pyspark/sql/session.py: warnings.warn("Fall back to non-hive
> support because failing to access HiveConf, "
> {code}
> PySpark prints warnings via using {{print}} in some places as well. We should
> also see if we should switch and replace to {{warnings.warn}}.
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