apache/spark — pull request #1623 by davies (2014-07-28 23:37:00+00:00)
Title: [SPARK-1687] [PySpark] pickable namedtuple

Add an hook to replace original namedtuple with an pickable one, then namedtuple could be used in RDDs.

PS: pyspark should be import BEFORE "from collections import namedtuple"