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https://issues.apache.org/jira/browse/SPARK-14605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-14605:
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Assignee: Joseph K. Bradley (was: Apache Spark)
> Python spark.ml classes should use unicode uid
> ----------------------------------------------
>
> Key: SPARK-14605
> URL: https://issues.apache.org/jira/browse/SPARK-14605
> Project: Spark
> Issue Type: Improvement
> Components: ML, PySpark
> Reporter: Joseph K. Bradley
> Assignee: Joseph K. Bradley
> Priority: Minor
>
> Python spark.ml Identifiable classes use UIDs of type {{str}}, but they
> should use {{unicode}} (in Python 2.x) to match Java. This could be a
> problem if someone created a class in Java with odd unicode characters, saved
> it, and loaded it in Python.
> This is also odd since the following code in Python produces a class {{lr}}
> with {{str}} uid and {{lr2}} with {{unicode}} uid:
> {code}
> from pyspark.ml.regression import LinearRegression
> lr = LinearRegression(maxIter=1)
> lr_path = "lr-TEMP"
> lr.write.overwrite().save(lr_path)
> lr2 = LinearRegression.load(lr_path)
> {code}
> Proposal: Use unicode everywhere in Python.
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