Github user mateiz commented on the pull request:
https://github.com/apache/spark/pull/363#issuecomment-40259367
Hey Ahir, I made a pass through this and made some comments. Looks really
good overall. One style comment too that you should apply globally -- leave two
blank lines between top-level items in a `.py` file (classes, functions, etc).
Items within a class can have just one blank line between them but it gets a
bit crowded at the top level.
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