Blocked revisions 75471 via svnmerge

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  r75471 | mark.dickinson | 2009-10-17 22:48:16 +0100 (Sat, 17 Oct 2009) | 9 lines

  Merged revisions 75470 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r75470 | mark.dickinson | 2009-10-17 22:46:32 +0100 (Sat, 17 Oct 2009) | 1 line

    Protect against attempts to replace PyNumber_Add with PyNumber_InPlaceAdd in builtin sum
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