Spark: Expansion of RDD(Key, List) to RDD(Key, Value)

Question

So I have an RDD of something like this

RDD[(Int, List)]]

Where a single element in the RDD looks like

(1, List(1, 2, 3))
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Answer 1

And in Python (based on @seanowen's answer):

rdd.flatMap(lambda x: map(lambda e: (x[0], e), x[1]))

Answer 2

rdd.flatMap { case (key, values) => values.map((key, _)) }