Merged revisions 78673 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r78673 | florent.xicluna | 2010-03-05 02:05:55 +0100 (ven, 05 mar 2010) | 2 lines

  Let's use assertIsNone / assertIsNotNone. It's hype.
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