Github user mateiz commented on the pull request:
https://github.com/apache/spark/pull/515#issuecomment-41223271
Because this won't work on IPython < 2, we unfortunately can't merge it.
You should just file an issue in https://issues.apache.org/jira/browse/SPARK
and we will revisit it when IPython 2 has much broader adoption. Unfortunately
for a while lots of people will probably still be on 1.
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