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https://issues.apache.org/jira/browse/SPARK-12268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-12268:
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    Assignee: Apache Spark

> pyspark shell uses execfile which breaks python3 compatibility
> --------------------------------------------------------------
>
>                 Key: SPARK-12268
>                 URL: https://issues.apache.org/jira/browse/SPARK-12268
>             Project: Spark
>          Issue Type: Bug
>          Components: PySpark
>    Affects Versions: 1.5.2, 1.6.1
>            Reporter: Erik Selin
>            Assignee: Apache Spark
>
> The pyspark shell allows custom start scripts to run using the PYTHONSTARTUP 
> environment variable. The value specified there will get run at the end of 
> the shell startup by a call to execfile. However, execfile is deprecated in 
> python3 and thus this does not work for python3 users. The simply fix is to 
> follow the 2to3 recommendation and read, compile and exec the file manually 
> as per this PR: https://github.com/apache/spark/pull/10255



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