Github user JoshRosen commented on the pull request: https://github.com/apache/spark/pull/38#issuecomment-36387844 I'd like to hold off on merging this until we see how https://github.com/ipython/ipython/pull/5226 is resolved. It looks like IPython executes `PYTHONSTARTUP` for non-interactive shells, too, which is different from the [behavior in the regular Python interpreter](http://docs.python.org/2/tutorial/interpreter.html#the-interactive-startup-file). If IPython decides to adopt Python's default `PYTHONSTARTUP` behavior, then I think we'd want to implement a different fix.
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