Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/1845#issuecomment-52818212
@vanzin this example shows array concatenation in bash and passing an array
into the arguments of a sub-process. I don't see how it's related to the exact
proposal here. What we need is a way to parse a string into a native argument
array in a way that is protable across windows and scripting and bash. In this
case, we'd need to convert the output of your pyhton program back to a bash
array in order to pass to a separate subprocess.
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