Merged revisions 77551 via svnmerge from

Merged revisions 77551 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r77551 | mark.dickinson | 2010-01-16 20:34:30 +0000 (Sat, 16 Jan 2010) | 9 lines

  Merged revisions 77550 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r77550 | mark.dickinson | 2010-01-16 20:33:02 +0000 (Sat, 16 Jan 2010) | 1 line

    Add better error reporting for MemoryErrors caused by str->float conversions.
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