GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/1771
[SPARK-1687] [PySpark] fix unit tests related to pickable namedtuple
serializer is imported multiple times during doctests, so it's better to
make _hijack_namedtuple() safe to be called multiple times.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/1771.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 #1771
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commit 1a9e336486d259ba1201b3965933c1117858f505
Author: Davies Liu <[email protected]>
Date: 2014-08-04T21:32:03Z
fix unit tests
_hijack_namedtuple() could be called multiple times
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