Merged revisions 74578 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r74578 | tarek.ziade | 2009-08-29 15:33:21 +0200 (Sat, 29 Aug 2009) | 1 line

  fixed #6801: symmetric_difference_update also accepts pipe
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2 files changed