apache/spark — pull request #1042 by laserson (2014-06-10 22:18:53+00:00)
Title: SPARK-2101: import unittest2 when using Python 2.6

The PySpark tests depend on `unittest.skipIf`, which was only added in Python 2.7. This should remedy the build failures on Python 2.6. The only remaining piece is that it may be necessary to install `unittest2` with Python 2.6, if it's not provided automatically.