Merged revisions 74582 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r74582 | amaury.forgeotdarc | 2009-08-30 01:00:38 +0200 (dim., 30 août 2009) | 10 lines

  Merged revisions 74581 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r74581 | amaury.forgeotdarc | 2009-08-29 20:14:40 +0200 (sam., 29 août 2009) | 3 lines

    #6750: TextIOWrapped could duplicate output when several threads write to it.
    this affect text files opened with io.open(), and the print() function of py3k
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diff --git a/Misc/NEWS b/Misc/NEWS
index da8cdf5..b60d8e5 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and Builtins
 -----------------
 
+- Issue #6750: A text file opened with io.open() could duplicate its output
+  when writing from multiple threads at the same time.
+
 - Issue #6707: dir() on an uninitialized module caused a crash.
 
 - Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.