[jira] [Resolved] (SPARK-3634) Python modules added through addPyFile should take precedence over system modules

["Josh Rosen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-3634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Rosen resolved SPARK-3634.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0

Issue resolved by pull request 2492
[https://github.com/apache/spark/pull/2492]

> Python modules added through addPyFile should take precedence over system modules
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-3634
>                 URL: https://issues.apache.org/jira/browse/SPARK-3634
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>    Affects Versions: 1.0.2, 1.1.0
>            Reporter: Josh Rosen
>             Fix For: 1.2.0
>
>
> Python modules added through {{SparkContext.addPyFile()}} are currently _appended_ to {{sys.path}}; this is probably the opposite of the behavior that we want, since it causes system versions of modules to take precedence over versions explicitly added by users.
> To fix this, we should change the {{sys.path}} manipulation code in {{context.py}} and {{worker.py}} to prepend files to {{sys.path}}.



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