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From "Joseph K. Bradley (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-19467) PySpark ML shouldn't use circular imports
Date Tue, 07 Feb 2017 02:12:41 GMT

     [ https://issues.apache.org/jira/browse/SPARK-19467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joseph K. Bradley reassigned SPARK-19467:
-----------------------------------------

    Assignee: Maciej Szymkiewicz

> PySpark ML shouldn't use circular imports
> -----------------------------------------
>
>                 Key: SPARK-19467
>                 URL: https://issues.apache.org/jira/browse/SPARK-19467
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML, PySpark
>    Affects Versions: 2.0.0, 2.1.0, 2.2.0
>            Reporter: Maciej Szymkiewicz
>            Assignee: Maciej Szymkiewicz
>            Priority: Minor
>             Fix For: 2.2.0
>
>
> {{pyspark.ml}} and {{pyspark.ml.pipeline}} contain circular imports with the [former
one|https://github.com/apache/spark/blob/39f328ba3519b01940a7d1cdee851ba4e75ef31f/python/pyspark/ml/__init__.py#L23]:
> {code}
> from pyspark.ml.pipeline import Pipeline, PipelineModel
> {code}
> and the [latter one|https://github.com/apache/spark/blob/39f328ba3519b01940a7d1cdee851ba4e75ef31f/python/pyspark/ml/pipeline.py#L24]:
> {code}
> from pyspark.ml import Estimator, Model, Transformer
> {code}
> This is unnecessary and can cause failures when working with external tools.



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