GitHub user JoshRosen opened a pull request:

    https://github.com/apache/spark/pull/11641

    [SPARK-13807] De-duplicate `Python*Helper` instantiation code in PySpark 
streaming

    This patch de-duplicates code in PySpark streaming which loads the 
`Python*Helper` classes. I also changed a few `raise e` statements to simply 
`raise` in order to preserve the full exception stacktrace when re-throwing.
    
    Here's a link to the whitespace-change-free diff: 
https://github.com/apache/spark/compare/master...JoshRosen:pyspark-reflection-deduplication?w=0

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/JoshRosen/spark 
pyspark-reflection-deduplication

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/11641.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #11641
    
----
commit 4babe1601c91bb9d95f91ffa7c851aa84497e07c
Author: Josh Rosen <[email protected]>
Date:   2016-03-11T00:07:49Z

    De-duplicate Kafka helper instantiation code in kafka.py

commit 25b3c799c21bc3a4fc90c344d606a0d4e1384410
Author: Josh Rosen <[email protected]>
Date:   2016-03-11T00:50:25Z

    Similar de-duplication in flume.

commit 4504c049ab886f507927b580a86c2af030523ba1
Author: Josh Rosen <[email protected]>
Date:   2016-03-11T00:57:23Z

    Preserve original stacktrace in raise.

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